WO1996040879A1

WO1996040879A1 - Dna cassettes for expression of lytic peptides in mammalian cells and transgenic organisms containing same

Info

Publication number: WO1996040879A1
Application number: PCT/US1996/010041
Authority: WO
Inventors: Kenneth L. White; John Morrey; William A. Reed
Original assignee: Utah State University
Priority date: 1995-06-07
Filing date: 1996-06-07
Publication date: 1996-12-19
Also published as: AU6111396A

Abstract

Expression cassettes for expression of amphipathic (lytic) peptides in mammalian unicellular (e.g., cultured cells) and multicellular organisms are described, as well as transgenic unicellular and multicellular mammalian organisms having such a cassette stably integrated in their genetic material. In one embodiment, the expression cassette comprises a milk-specific promoter, which for example may be the beta casein promoter, linked in reading frame to control the expression of an amphipathic peptide encoding gene. This expression cassette is useful for production of amphipathic peptides in milk-producing cells and tissues. In another embodiment, the expression cassette comprises an interleukin regulatory sequence adjacently linked to control the expression of an amphipathic peptide encoding gene. The interleukin-regulated cassette is useful to produce disease-resistant animals.

Description

DNA CASSETTES FOR EXPRESSION OF LYTIC PEPTIDES IN MAMMALIAN CELLS AND TRANSGENIC ORGANISMS CONTAINING SAME

BACKGROUND OF THE INVENTION Technical Field: The invention is directed to transgenic expression of amphipathic and lytic peptides in mammalian organisms, and particularly to transgenic mammalian unicellular and multicellular organisms having stably-integrated amphiphathic peptide-encoding genes whose expression is controlled by a tissue-specific mammalian regulatory sequence.

Background: A class of cellular polypeptides known as "lytic peptides" or "amphipathic peptides" has been found to be active against various disease-causing agents including bacteria and viruses. These amphipathic peptides form complexes in the cell's outer coat or membrane, and a present hypothesis is that the complexes form pores which allow unregulated transfer of fluid and molecules across the membrane. According to this hypothesis, the cells die because of osmotic imbalances resulting from this unregulated transfer. Whatever the mechanism, the naturally occurring amphipathic peptides and various modified peptides having certain peptide sequence or structure in common with the naturally occurring amphipathic peptides have been found to have cytocidal activity against bacteria, fungi, protozoans, and various other microbial pathogens.

PCT patent publication No. WO 89/00194 (priority date US patent application filed July 7, 1987) , by Jaynes et al., discloses numerous amphipathic peptides including both naturally occurring ones and modified amphipathic peptides. An earlier application by Jaynes et al. , U.S. Patent Application Serial No. 07/889,225 filed July 25, 1986, discloses vectors encoding certain amphipathic peptides and the production of disease-resistant transgenic plants containing gene sequences expressing such amphipathic peptides. The Jaynes applications also disclose use of amphipathic peptides for injection or application to a sick organism. Quantities of amphipathic peptides or amphipathic peptide analogues sufficient for experimental use can be made on a peptide synthesizer. However, this method is not suitable for commercial production or even for amounts needed for clinical trials of amphipathic peptides as disease-treating agents.

Attempts have been made to produce amphipathic peptides by overproduction in various host species. Amphipathic peptides can be produced in insect cell cultures using the baculovirus-Spodoptera expression system, as the amphipathic peptides are native to these insect species and the insect cells are somewhat resistant to their toxic effects. Efforts to express amphipathic peptides in non-insect hosts have generally worked poorly, because of the toxic effects of the amphipathic peptides on the host cells or organisms. While Jaynes et al. were able to produce transgenic plants expressing an amphipathic peptide, their success is due to the difference in cell wall and membrane structures of plants, which render them insusceptible to attack by the amphipathic peptide. .So far as the present inventors are aware, the only successful production of a transgenic mammalian organism containing an expressible lytic peptide gene is that disclosed in the related copending application S.N. 08/114,692 of White and Reed. These inventors were able to produce transgenic mice and transformed lymphocytes carrying an integrated lytic peptide-encoding gene under the control of an interleukin regulating sequence. However, these organisms were not particularly suited for achieving large-scale production of amphipathic peptides.

Further, the production of novel organisms by techniques of genetic engineering, including both unicellular and multicellular organisms and tissue culture cell lines, has been applied to achieve various objectives. For example, the "Harvard mouse" is a strain of mice which have been genetically altered to have increased susceptibility to the induction of cancer by damaging to a particular gene. Another example is the development of a bacterial strain carrying a foreign gene which confers the ability to "eat" petroleum and related compounds on the host. Desirably, in a genetically-engineered organism, the foreign gene should be stably present in the germ cells of the organism so that it is transmitted to its offspring and to subsequent generations of the organism. Further, it is often desirable that the process of obtaining the transgenic organism not require integration of the gene at a specific site in order for expression of the gene to occur. This makes the process more reproducible, which is particularly important when dealing with alteration of multicellular animals where the generation times are generally long compared to those of unicellular organisms. However, so far as the present inventors are aware, no one has yet been able to achieve a disease-resistant mammalian or other non-insect vertebrate unicellular or multicellular organism, having an expressible gene encoding an amphipathic peptidestably integrated into its genome. While Jaynes et al. were able to produce transgenic plants expressing an amphipathicpeptide, their success may be due to the difference in cell structure of plants, such as the cell wall and membrane structures, which make them insusceptible to attack by the amphipathic peptide. In contrast, in other prokaryotic and non-insect eukaryotic cells and animals, expression of an introduced gene for an amphipathic peptide can result in death or serious harm to the host cell. If the gene encoding the amphipathic peptide is under the control of a regulator that permits even low levels of expression, long-term growth of the host (or culture of the cell line) is difficult to achieve.

While their sensitivity is less than that of bacteria and most eukayotic pathogens, mammalian cells are also susceptible to killing by amphipathic peptides. Unless the gene encoding the amphipathic peptide is under very tight control, leaky expression of the peptide has generally negative effects on host mammalian cells. However, if tight control is provided, one is faced with the problem of how to obtain selective and beneficial expression of the amphipathic peptide, otherwise the benefits of the integrated gene cannot be realized.

So far as the present inventors are aware, to date there have been no successful attempts to selectively express amphipathic peptides in a beneficial manner in particular mammalian cell types or tissues. Accordingly, a need remains for means to achieve such selective expression of amphipathic peptides in mammalian cells and organisms.

Nor are the inventors aware of any successful attempts to use a non-insect expression system, or a transgenic mammalian peptide expression system, for production of amphipathic peptides in large quantity. Accordingly, a need also remains for means to produce amphipathic peptides in large quantities.

Further, a need remains for a DNA cassette and method for producing mammalian and non-insect eukaryotic transgenic organisms having a stably integrated gene encoding an amphipathic peptide, with the gene being selectively expressed only under conditions such as disease states where expression is desirable and without significantly jeopardizing the general hardiness and well- being of the host organisms. A need further remains for such DNA cassette and method which is useful to transfect both unicellular and multicellular non-insect vertebrate organisms.

Disclosure of the Invention The invention comprises expression cassettes for amphipathic peptides in mammalian unicellular (e.g., cultured cells) and multicellular organisms, as well as transgenic unicellular and multicellular mammalian organisms having such a cassette stably integrated in their genetic material. In one embodiment, the invention comprises an expression cassette for production of amphipathic peptides in milk-producing cells and tissues, and transgenic unicellular and multicellular organisms containing the cassettes. The expression cassette comprises a milk- specific promoter, which for example may be the beta casein promoter, linked in reading frame to control the expression of an amphipathic peptide encoding gene. The invention further embraces organisms producing amphipathic peptides via expression of the cassettes, and amphipathic peptides produced by such organisms.

In a preferred embodiment for milk production of amphipathic peptides, the amphipathic peptide is produced as a fusion protein wherein the fusion peptide renders the amphipathic peptide harmless to the cell. After secretion in milk, the fusion peptide is readily cleaved from the fusion protein to yield the free amphipathic peptide. Further desirably, the fusion peptide may be a marker peptide which serves for detection and/or isolation of the fusion protein from milk.

A method of producing an amphipathic peptide comprises the steps of providing a cassette comprising promoter segment encoding a 5' promoter region which normally cis-regulates expression of a native milk- specific protein-encoding gene, linked upstream to regulate the expresssion of a segment encoding an amphipathic peptide; stably integrating the cassette into the genome of a milk-producing mammalian organism; collecting milk produced by the mammalian organism; and purifying the amphipathic peptide from the collected milk. In an alternate embodiment of the method, the organism is a mammalian cell line in culture which is capable of producing a milk protein under the regulation of the 5' promoter region, such as the HC11 cell line which produces beta casein, and the method further includes a step of treating the cells having the integrated cassette with lactogenic hormones to activate the 5' promoter region. Methods of producing transgenic organisms carrying the cassette having the 5' promoter region regulating expression of amphipathic peptide are also provided.

In an alternate embodiment, the invention provides a DNA cassette comprising a sequence encoding an amphipathic peptide under the transcriptional control of regulating sequences that normally permit expression only when a defined indicator(s) reflective of a disease state is present, and which tightly inhibit expression when such indicator(s) is absent. Presently preferred embodiments use interleukin regulatory sequences, especially the regulatory sequences of interleukin-2 or interleukin-12. In a further preferred embodiment of multicellular organisms, the cassette is incorporated into the genomes of the germ cells and the organisms are capable of transmitting it to their offspring, to enable production of disease-resistant animals.

In another preferred embodiment, the cassette is incorporated into cells such as tumor-infiltrating lymphocytes or bone marrow stem cells removed from a host for transfection, and then re-introduced into the patient to provide therapeutic benefits.

Desirably, the encoded amphipathic peptide is one which is more toxic to selected target pathogens than to the mammalian or non-insect vertebrate host cells. In a presently preferred embodiment, the encoded amphipathic peptide is Shiva-1. However, other useful amphipathic peptides and modified amphipathic peptides include cecropin-B, SB-37, Anubis-1, -2, -3 and -4; Shiva-2, -3, -4, -5, -6, -7, -8, -9 and -10; melittin; Hecate-1, -2, and -3; Manitou-1; AP-1; and Vishnu series amphipathic peptides.

The unicellular organisms of the invention include mammalian tissue culture cells, embryonic stem cells useful for producing transgenic animals carrying the cassette, and cells removed from a mammalian host for temporary culture in vitro, such as bone marrow cells or tumor-infiltrating lymphocytes (TILs) , prior to reintroduction into the host. It is within contemplation that other regulating sequences may be useful in the DNA cassette. Suitable sequences would control expression of the amphipathic peptide such that it is expressed in tandem with a host's normal response to a disease condition, and is not "leaky" under normal conditions, e.g. there is little or no production of the amphipathic peptide in the absence of a disease state recognizable by the host organism. Sequences which may be useful include c-myc-regulating sequences and tumor necrosis factor-regulating sequences.

The invention further embraces methods of making the transgenic animals and cells, and methods of using cells carrying the cassette.

-BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 depicts a general map of a commercially available plasmid carrying a NEO expression cassette useful to make the cassette of one embodiment of the invention; FIG. 2 depicts a general map of another plasmid used as a basis for a cassette of the invention;

FIG. 3 depicts a map of a plasmid designated pILSHI/neo which carries an embodiment of the DNA cassette of the invention; FIG. 4 depicts a map of a commercially available plasmid pGFP-Cl carrying a GFP peptide-encoding segment; FIG. 5 depicts a map of an embodiment of a plasmid carrying the cassette of the invention, plasmid pCasGF- Cas2, derived from the plasmid pGFP-Cl shown in FIG. 4; FIG. 6 depicts a map of a plasmid pCasGF-S carrying an alternate embodiment of a cassette of the invention; and

FIG. 7 depicts a map of a plasmid pNeo-beta-casCAT2, which contains a chloramphenicol acetyl transferase gene under the regulatory control of a beta-casein 5' promoter region, used in EXAMPLE 1. Mode for Carrying Out the Invention In an embodiment presently preferred for production of amphipathic peptides in milk, the cassette comprises a milk-specific protein 5' regulatory sequence placed upstream of, and in reading frame with, a gene encoding an amphipathic peptide. The 5' regulatory sequence is derived from the 5' region of a native milk-specific protein-encoding gene. In a further embodiment, the cassette includes a 3' regulatory sequence from a native milk-specific protein gene, the 3' regulatory sequence being located downstream from the amphipathic peptide- encoding gene. The 3' regulatory segment includes a polyadenylation signal, and may also include a stop codon if none is present in the amphipathic peptide-encoding gene. In embodiments lacking the 3' milk-specific protein regulatory segment, the cassette should include a polyadenylation signal region derived from another source such as SV-40.

In an illustrated embodiment (SEQ ID No. 6) , the 5' regulatory sequence is derived from a Bos taurus beta casein genomic clone GENBANK accession # M14711 using the primers of SEQ ID Nos. 7-8, with the 3' regulatory sequence from the pGFP-Cl plasmid (commercially available from CLONTECH Laboratories, 4030 Fabian Way, Palo Alto, CA 94303) added starting with residue 8798. Another, presently preferred embodiment (SEQ ID No. 5) combines the 5' beta casein promoter with a 3' beta casein regulatory sequence including a polyadenylation signal, the 3' sequence being obtained using the primers of SEQ ID Nos. 9-10 from the genomic clone.

While the milk-specific promoter is exemplified in SEQ ID Nos. 5 and 6 as being the beta casein promoter, a number of other milk-specific promoters could be substituted. These include at least portions of the regions specified in Table I, of various such promoters whose GENBANK accession numbers are given. Provided that the promoter is inserted in the proper reading frame as shown in the examples here given, cassettes having an amphipathic peptide under the control of any of the milk- specific promoters listed in Table I will be functional.

A suitable 5' promoter region for alpha-SI-casein can be isolated by PCR amplification from the Bos taurus alpha-Si-casein gene using the primers of SEQ ID Nos. 11-

12 to yield a fragment comprising residues 8 through 3608 of the gene found in exon 2 of the genomic clone. The PCR primers of SEQ ID Nos. 11-12 also include an Aat II segment for use in cloning into the Aat II/Nhe I major site of the pGFP-Cl plasmid. A 3' promoter segment from

Bos taurus alpha-SI-casein comprises residues 18438 (in exon 18) through 21576, and can be obtained with the PCR primers of SEQ ID Nos. 13-14. The alpha-SI-casein gene portions begins with residue 11 of each of the primers of

SEQ ID Nos. 11-14.

TABLE I MILK-SPECIFIC PROMOTERS

Species Accession Description

C. alpha-s2- Bos taurus #M94327 casein

D. beta- Bos taurus #M21342 to casein M21343

Bos taurus #M31707 5' region

Bos taurus #M55158

Bos taurus #X14711

Capra hircus #M90559 to M90562

Oryctolagus #X15735 cuniculus

(rabbit)

Oryctolagus #M33582 cuniculus

(rabbit)

E. kappa- Capra hircus #Z33882 casein (goat)

Bos taurus #X14906 to

X14908,

X14326

Ovis aries #L31372

Bos taurus #M75887 (strain Holstein- Friesian)

F. alpha- Bos taurus #M90645 5' UTR and lactalbumin 5' end of eds

Bos taurus #X06366

Capra hircus #M63868 (goat)

A. beta- Bos taurus #X14710 lactoglobulin (cow)

Capra hircus #Z33881 ^' (goat)

Ovis aries #X12817 (sheep)

Ovis sp. #M32232- (sheep) M32237 Species Accession Description

Macropus #L14954 to eugenii L14960

(marsupial)

B. alpha-si- Bos taurus #X59856 casein

Capra hircus #X56462 (goat)

Oryctolagus #M77195 cuniculus

(rabbit)

C. alpha-s2- Bos taurus #M94327 casein

D. beta- Bos taurus #M21342 to casein M21343

Bos taurus #M31708

Bos taurus #M55158

Bos taurus #X14711

Capra hircus #M90559 to M90562

Oryctolagus #M33582 cuniculus

(rabbit)

E. kapp - Bos taurus #X14906 to casein X14908,

X14326

Bos taurus #M75888 (strain Holstein- Friesian)

F. alpha- Bos taurus #X06366 lactalbumin

The 5' segment primers include an Aat II restriction site linker adjacent residue 8 of the gene, and an Nhe I restriction site linker adjacent residue 3608 of the gene. The 3' segment primers include a Sal I restriction site linker adjacent residue 18438 of the gene, and an Apa I restriction site linker adjacent residue 21576. These restriction sites are useful for cloning into the multiple cloning site of pGFP-Cl; however, different restriction sites could be produced as desired for cloning into a different plasmid.

Another set of 5' and 3' promoter segments which could be substituted for the beta casein promoter segments can be obtained by PCR amplification with the primer pairs of SEQ ID Nos. 15-16 and SEQ ID Nos. 17-18 from the goat (Capra hircus) beta-lactoglobulin genomic clone. The primers of SEQ ID Nos. 15-16 amplify the segment from residue 1 through residue 3050 (exon 2) ; primers of SEQ ID Nos. 17-18 amplify a 3' segment from residue 5946 through residue 7535. Here also, the beta lactoglobulin coding portion begins with residue 11 of each primer. The 5' segment primers include an Nhe I restriction site linker adjacent residue 1 of the gene, and an Age I restriction site linker adjacent residue 3050. The 3' segment primers include a Sal I restriction site linker adjacent residue 5946 of the gene, and a Bam HI restriction site linker adjacent residue 7535. As for the embodiment using alpha- Si-casein regulatory sequences, these restriction sites are selected to facilitate cloning into the multiple cloning site of pGFP-Cl.

Desirably, the 5' segment of the milk-specific promoter should include a signal peptide encoding sequence which encodes a peptide that facilitates secretion of the transgene product. In the beta casein 5' region utilized in the construct of SEQ ID No. 5, the signal sequence is found in exon 2 and has an amino acid sequence Met-Lys- Val-Leu-Ile-Leu-Ala-Cys-Leu-Ala-Leu-Ala. The mature signal protein has an Arg residue immediately prior to the Met residue, this Arg residue being found in the signal sequence encoding regions of casein genes from cow, sheep, goat, pig, rat, mouse, rabbit, human, and kangaroo. More information concerning milk protein genes is available in "Structure and function of milk protein genes", J-C. Mercier and J-L. Vilotte, J. Dairy Science 76:3079-3098 (1993) .

The illustrated embodiments (SEQ ID Nos. 5 and 6) have Shiva-l as the amphipathic peptide. However, other amphipathic peptide encoding genes can be substituted for Shiva-1. Presently preferred amphipathic peptides include Hecate-1, Hecate-2, Hecate-3, Shiva-1, Shiva-2, Shiva-6, Shiva-7, Shiva-9, SB-37, AP-7, Flak-1, and Manitou-1 (SEQ ID Nos. 19-30, respectively), along with cecropin-B, Anubis-1, -2, -3 and -4, Shiva-3, -4, -5, -8, and -10, melittin, and Vishnu series amphipathic peptides.

In the presently preferred illustrated embodiments of SEQ ID Nos. 5 and 6, the cassette further includes a fusion peptide encoding gene, here embodied as GFP (green fluorescent protein) encoding gene, inserted in reading frame adjacent the amphipathic peptide encoding gene (FIGS. 5 and 6) . One purpose of the fusion peptide gene is to inhibit toxic activity of the amphipathic peptide, which depends in large part on its amphipathic character. The fusion peptide encoding gene may be placed on either side of the amphipathic peptide encoding gene, but the placement should ensure that the chemical cleavage of the fusion peptide does not materially alter the amphipathic chemical character of the amphipathic peptide. An additional or alternate purpose served by an appropriately-chosen fusion peptide gene is to provide a marker or tag for detecting expression of the cassette and/or for facilitating isolation of the amphipathic peptide from milk.

In the embodiments illustrated in FIGS. 5 and 6 and in SEQ ID Nos. 5 and 6, the fusion peptide is GFP, otherwise known as "green fluorescent protein" . The GFP can be detected by fluorescence at between about 509 nm and 540 nm, with stimulation at between about 340 nm and about 490 nm. In the illustrated embodiments, the GFP coding sequence is placed adjacently upstream of the amphipathic peptide coding sequence, so that the cyanogen bromide cleavage of the amphipathic peptide from the GFP will not significantly alter the amphipathicity of the peptide. A protocol for cleavage of amphipathic peptide from the fusion product using cyanogen bromide is described in the literature in, for example, "Chemical cleavage of fusion proteins using cyanogen bromide", E.R. LaValli and J.M. McCoy, p. 16.4.11-16.4.12 in Current Protocols in Molecular Biology (F.M. Ausubel et al. , eds; John Wiley and Sons, Inc., New York, pub.; 1994). A cassette expressing a GFP-Shiva 1 fusion product under the control of the CMV promoter from the pGFP-Cl plasmid has been stably integrated into mink embryonic stem cells. Expression of the fusion peptide was observed as GFP fluorescence; GFP-Shiva-1 stable transfectants exhibited a fluorescence approximately three-fold higher than negative controls. This expression of the fusion product in the transfectant cells did not produce any significant effects on cell growth rate or cell death. This result indicates that Shiva-1 can be expressed in mammalian cells as a fusion product without deleterious effects on the cells.

Many other fusion peptides could be substituted for GFP. One such fusion peptide is the so-called streptavidin tag, a nine amino acid peptide that binds streptavidin and thus is useful to purify the expressed fusion product (the amphipathic peptide with the fusion peptide attached at one terminus) by streptavidin affinity (see "One-step affinity purification of bacterially produced proteins by means of the strep tag and immobilized recombinant core streptavidin", T.G. Schmidt and A. Skerra, J. Chromatocrraphy A. 676:337-345. 1994) . Another group of proteins useful as the fusion peptide are milk proteins themselves, such as beta casein, alpha-Sl- casein, alpha-S2-casein, beta-lactoglobulin, kappa-casein, alpha-lactalbumin, and the like. A particularly preferred embodiment would use a milk protein such as kappa-casein which is incorporated into the micelles of milk, which are easily separated from the bulk milk. Alternatively, the fusion peptide can be embodied as a histidine segment comprising at least six consecutive histidine residues, which can be used to purify the expressed fusion product via a resin containing nickel ions. In still another embodiment, the histidine segment is added to the terminus of a different fusion peptide, the latter being adjacent the amphipathic peptide, primarily to facilitate purification. Still other useful fusion peptides are beta galactosidase and trpE, either of which can be readily purified by antibody affinity chromatography to pull out the fusion product. A further advantage of beta galactosidase is that its presence can be monitored during purification. In all cases, the fusion peptide gene must be inserted in reading frame with the amphipathic peptide. Also, the linkage of the fusion peptide to the amphipathic peptide must be such that it can be readily cleaved from the amphipathic peptide without significantly altering the properties of the amphipathic peptide.

Depending on which fusion peptide is selected for the cassette, alternative cleavage methods other than cyanogen bromide could be used, including proteolytic cleavage. In such case, the junction of the fusion peptide coding sequence with the amphipathic peptide coding sequence is engineered to produce a site for proteolytic cleavage which will result in liberation of a functional amphipathic peptide. Presently preferred proteolytic enzymes are ones known to clot or be active in milk, most or all of which are already FDA-approved as safe. These preferred proteolytic enzymes include: porcine, bovine, and chicken pepsins; rennet enzymes from fungus, including Endothia parasitica rennet, Mucor pusillus var. Lindt rennet, and Mucor miehei rennet; and Bacillus cereus protease. Enzymes such as papain, chymopapain, ficin and bromelain could also be used, but these may not be FDA- approved and therefore are presently considered less desirable.

While the illustrated embodiments include a fusion peptide encoding gene, it is believed that for at least some amphipathic peptides a fusion peptide is not required to prevent toxicity to the milk producing cells. Since the expression of the amphipathic peptide occurs only in milk-producing cells and when milk production is stimulated by a secretory-signal-containing regulatory region, the amphipathic peptide may become associated with the lipids in vesicles which in turn join micelles in the milk. The amphipathic peptide may thus in effect be sequestered, such that the effective intracellular and/or extracellular concentrations are below toxic levels.

Thus, still another embodiment of the cassette comprises a milk-specific protein 5' regulatory region adjacently linked to the 5' end of, and in reading frame with, an amphipathic peptide-encoding gene. The cassette further includes a 3' regulatory region providing for post- translational processing, which may also be derived from a milk-specific protein gene or may come from another source such as SV-40.

In an embodiment for insertion into mammalian cells in culture, the cassette should further include at least one selection marker to facilitate selection of mammalian cells which have incorporated the cassette into their genomic DNA. The mammalian selection marker may however be omitted from a cassette intended for microinjection into embryos. The cassette also desirably includes a bacterial selection marker to facilitate production of the cassette in bacteria, as known in the art. In the embodiments of SEQ ID Nos. 5 and 6, the cassette further includes the portion of the pGFP-Cl plasmid which encodes both kanamycin and neomycin resistance genes under the control of a promoter segment which provides for expression in either bacterial or mammalian cells.

The embodiments of SEQ ID Nos. 5 and 6 and FIGS. 5 and 6 are constructed from the commercially available pGFP-Cl plasmid, whose multiple cloning site ("MCS") is designed such that insertion of a gene downstream from the GFP coding sequence will be aligned in the reading frame with GFP. The pGFP-Cl plasmid also provides many desirable auxiliary items, including a 3' regulatory region with an SV-40 polyadenylation signal and selection markers for both bacterial and mammalian cells under appropriate regulatory controls. In the embodiment of SEQ ID No. 5, pGFP-Cl is modified such that the segment beyond residue 126 of pGFP- Cl through the start of the 3' SV-40 region is that of SEQ ID No. 5 to produce a plasmid herein designated pCasGF- SCas. This modification disrupts the CMV promoter segment. A second illustrated embodiment referred to as plasmid pCasGF-S, comprises the pGFP-Cl plasmid modified to contain SEQ ID No. 6 instead of SEQ ID No. 5. To accomplish these substitutions, a segment comprising residues 127-4586 of SEQ ID Nos. 5 or 6 (this region is the same in both SEQ ID Nos. 5 and 6) is inserted in pGFP- Cl upstream and in reading frame with the GFP coding sequence. The insertion is accomplished by means of Aat II/Nhe I restriction sites, and with concomitant deletion of the remainder of the CMV promoter beyond residue 126 of pGFP-Cl. The Shiva-1 coding sequence comprising residues 5330-5448 of SEQ ID No. 5 is inserted downstream of the GFP coding sequence in the pGFP-Cl multiple cloning site. In pCasGF-Cas2, this insertion further includes a segment comprising residues 5449-7760 of SEQ ID No. 5 which comprise the beta casein 3' regulatory region. The segments comprising the 5' and 3' beta casein regulatory regions are obtained from the with the appropriate primer pairs SEQ ID Nos. 7-8 and 9-10 as described previously herein, the primer pairs being constructed to introduce the necessary restriction sites.

Desirably, as is known in the art, the cassette should include at least one selection marker to facilitate selection of mammalian cells which have incorporated the cassette into their genomic DNA. In the embodiments of

SEQ ID Nos. 5 and 6, the cassette includes the portion of the pGFP-Cl plasmid which encodes both kanamycin and neomycin resistance genes under the control of a promoter segment which provides for expression in either bacterial or mammalian cells.

Insertion of the cassette into a mammalian organism, and screening of resulting organisms, may be accomplished by micro-injection into embryos according to the general protocols described subsequently herein in Examples 2 and 3. The cassette may alternatively be inserted into cultured cells, including stem cells to be introduced into a host organism, by transfection of a linearized construct or linearized plasmid carrying the construct, or of supercoiled plasmid carrying the construct. Lipofection of supercoiled plasmid is the presently preferred method of transfection.

In a further preferred embodiment, the transgenic organism is prepared by co-transfection of two or more cassettes each containing a milk-specific promoter controlling an amphipathic peptide gene. The milk- specific promoter may desirably differ for each cassette. The amphipathic peptide gene may be the same for all cassettes or may differ as well. Co-integration of two or more cassettes is believed to produce a synergistic, i.e. greater than additive, enhancement of expression of the fusion product.

FIG. 7 depicts a plasmid pNeo-beta-casCAT2 having a cassette comprising a beta casein 5' regulatory sequence upstream of the CAT gene expressing chloramphenicol acetyl transferase enzyme. The beta casein 5' sequence comprises a 450 base pair segment extending from -310 to +140 of the genomic clone of the Bos taurus beta casein gene (GENBANK accession # M14711) , and in this plasmid has been inserted in multiple cloning site MCS I of plasmid pHE (P_r-E_n-)CAT (available from 5 Prime —* 3 Prime, Inc., Boulder, Colorado; lacks a promoter for the CAT gene) . In this location, the beta casein 5' sequence regulates the CAT gene from of plasmid pHE (P_r-E_n-)CAT. The beta casein gene segment was obtained using the primers of SEQ. ID Nos. 31- 32 to amplify a 155 -bp portion of the beta casein genomic clone GENBANK accession # M14711, and cleaving with BG1II to yield a 450 base-pair segment. The final 450 bp beta casein segment inserted into the cassette comprises the 5' flanking sequences including CAAT box, TATA box, progesterone-regulatory region, glucocorticoid regulatory region, CTF/NF-1 nuclear protein binding sites, and mammary gland specific factor binding site (Gorodetsky et al. op cit; see also S. Altiok and B. Groner, "Interaction of two sequence specific single-stranded DNA-binding proteins with an essential region of the beta casein gene promoter is regulated by lactogenic hormones", Mol.Cell.Biol. 11:7303-7310, 993; J. Nowock, V. Borgmeyer, A.W. Puschel, R.A.W. Rupp, and A.E. Seppel, "The TGGCA-binding protein binds to the MMTV-LTR, the adenovirus origin of replication, and the BK virus enhancer", Nucleic Acids Res. 13:2045-2061). The 450-bp segement also includes the transcription start site, the first exon, and a 5' portion of the first intron. This 450-bp segment appears to comprise the minimum portion of the beta casein gene needed for hormone-responsive transcription of beta casein gene. However, it is believed that other 5' and 3' portions of the gene may further enhance beta casein transcription and/or translation or provide responsiveness to additional lactogenic hormones or enhancers. Additionally, the cassette includes a segment comprising SV-40 polyadenylation signal and splice site inserted adjacent and downstream of the CAT gene to provide for post-translational processing. The plasmid used in the expression studies further included a mammalian selection marker cassette, which comprised the neo gene driven by the mouse thymidine kinase promoter and polyoma virus enhancer PyF441 derived from plasmid pMClNeoPolyA (available from Stratagene, Calif.), and a bacterial selection marker. The plasmid used in the expression studies was designated pNeo-beta-casCAT2, and contained the neo and beta casein cassettes transcribing in opposite directions.

EXAMPLE l. The cassette of FIG. 7, pNeo-beta- casCAT2, was transfected into HC11 cells and stable transformants were selected. The HC11 cell line has the ability to maintain in vitro production of beta casein under the regulation of the native beta casein 5' regulatory regions when appropriately treated with lactogenic hormones (W. Doppler, B. Groner and R.K. Ball, "Prolactin and glucocorticoid hormones synergisticaly induce expression of transfected rat beta-casein gene promoter constructs in a mammary epithelial cell line", PNAS :104-108, 1989; S.L. Gorodetsky, T.M. Tkach and

T.E. Kapelinskaya, "Isolation and characterization of the Bos taurus beta casein gene", Gene 6_.:87-96, 1988) . Additionally, groups of HCll cells were transfected with one of the following: pHE (P_r-E_n-)CAT, as a negative transcription control; or pHE (P_r+E_n+)CAT (also available from 5 Prime — * 3 Prime, Inc.; includes an SV-40 promoter for CAT gene) as a positive transcription control.

The stable transfectant cell cultures were grown approximately to confluency and treated with different combinations of the lactogenic hormones dexamethasone (10^~7 molar) , prolactin (5 μg/ml) , and insulin (5 μg/ml) to induce beta casein transcription. CAT expression was measured approximately three days following the start of treatment. CAT gene expression was measured as CAT enzyme activity, and CAT protein levels were assayed using an indirect immunofluorescence kit obtained from 5 Prime —* 3 Prime, Inc., according to the manufacturer's instructions. Tables II and III contain data showing the results of these studies.

Table II. Effect of lactogenic hormones on expression of pNeo β casCAT2 transfected into HCll

CAT activity, Introduction

Hormone added nmole per min ratio fold

Pro Dex Ins per mg of protein

- - - 0.29 ± 0.13* 1

+ + + 2.26 ± 0.56* 7.8

Stably transfected HCll cells were kept at full confluence level in growth medium for 3 days and then incubated with hormones for 3 days.

The hormone concentrations were as follows: prolactin (Pri) , 5 μg/ml; dexamethasone (Dex), 0.1 μM; insulin (Ins) , 5 μg/ml

*Means±SEM of five experiments three pools of cells derived from individual transfections. Table III. Effect of lactogenic hormones on expression of pNE0-β-casCAT2 transfected into HCll

CAT activity, Introduction

Hormone added nmole per min ratio fold

Pro Dex Ins per mg of protein

- - - 0.4 1

+ + - 0.9 2.3

- - 0.55 1.4

+ - - 0.8 2

- - + 0.4 1

Stably transfected HCll cells were kept at confluence for 3 days and then incubated with hormones for 3 days. The hormone concentrations were as shown for table 1. No duplicates were performed, therefore Mean±SEM was not calculated for the given data.

In the absence of the hormone treatments, CAT expression was at a basal level. Either dexamethasone alone or prolactin alone induced CAT expression at levels greater than basal . A mixture of prolactin and dexamethasone produced a 2.3 fold induction, while the strongest response was a 7-fold induction produced by a combination of prolactin, dexamethasone and insulin all added simultaneously. Significant CAT expression was also observed in the cells incorporating the SV-40-promoter-CAT construct from pHE (P_r+E_n+) CAT. In comparison, no induction of CAT activity was observed in cells incorporating the promoterless-CAT construct (pHE (P_r- E_n-)CAT.

In an alternate embodiment of a cassette for expression of amphipathic peptides in mammalian organisms, the regulatory sequence used is that normally associated with regulation of the interleukin-2 gene. This embodiment is useful to produce disease-resistant animals and in treatment of certain diseases by incorporation into stem cells which are to be re-introduced into the diseased host. Interleukin-2 (IL-2) is a growth factor for thymus- derived lymphocytes (commonly referred to as "T cells"), and is only synthesized by "activated" T cells. Activation occurs as a result of interaction between a T cell and the surface of a macrophage which has itself interacted with an antigen or pathogen-infected cell; it is believed that the macrophage presents an antigen to the T cell as part of this process. Activation of the T cell in turn triggers synthesis of IL-2. The IL-2 noncoding sequences (control or regulatory sequences) adjacent the IL-2 coding sequences have been determined to be required for this triggering of IL-2 synthesis upon activation of the T cell.

The regulatory region of the IL-2 gene includes a noncoding promoter sequence and a signal sequence downstream of the promoter. This signal sequence is transcribed to form a signal peptide preceding the IL-2 gene product, which helps target the gene product for secretion by a mammalian cell. The signal peptide is cleaved from the gene product within the cell and prior to secretion. To obtain the desired antimicrobial effects of the expressed amphipathic peptide, it is highly preferred that the amphipathic peptide be secreted.

Since activation of a T cell is associated with activity of the immune system in response to an actual or potential disease state, the IL-2 regulating sequences are ideal for controlling the expression of an amphipathic peptide. Further, as mentioned previously, IL-2 is produced only in T cells. Thus, in making a transgenic animal carrying a gene for an amphipathic peptide under the IL-2 regulatory control, one avoids the problem of having the amphipathic peptide synthesized in all tissues and potentially causing harm to the animal. In the present invention, the amphipathic peptide is effectively delivered primarily at the appropriate site, e.g. adjacent the pathogenic organism or in the lymphoid system where it may contact the pathogen. Also, the amphipathic peptide is synthesized in significant amounts only when required by the existence of a disease state which triggers activation of T cells. A further desirable feature for regulating sequences to control expression of an amphipathic peptide is that they provide "tight" control of expression. By "tight" expression, it is meant that there is essentially no detectable gene product produced in the absence of the

"trigger" signal. The IL-2 regulating sequences appear to regulate expression more tightly than do the regulating sequences associated with most other interleukins, with the exception of interleukin-12. Thus, the tight expression provided by the IL-2 promoter is a further advantage of the cassette for the production of transgenic organisms.

U.S. Patent No. 4,992,367 to Cullen discusses methods and compositions for enhancing the expression of interleukin-2 in mammalian cells, involving substitution of the rat IL-2 control sequences for the "native" human IL-2 control sequences. U.S. Patent No. 4,952,499 to Cantor et al. discloses certain other genes and gene products which regulate expression of the IL-2 receptor. This receptor is found on the surfaces of T cells, and binding of IL-2 to this highly specific receptor is part of the mechanism by which IL-2 stimulates reproduction of activated T cells.

In the instant embodiment, in which production of transgenic mice was used to demonstrate the feasibility of the invention, the interleukin-2 promoter was obtained from mouse genomic DNA using a polymerase chain reaction (PCR) . A crude extract of DNA was made from Swiss Albino mouse 3T3 fibroblast cells (ATCC #CCL 92) , and primers as shown in SEQ. ID#1 and #2 were used for the PCR reaction to amplify a portion of the mouse IL-2 gene from nucleotides -593 to +110. In the numbering scheme to which the aforementioned nucleotide numbers refer, "1" is taken to be the first nucleotide of the segment coding for the IL-2 protein. In the natural host organism, it is known that binding sites for NF-kappa-B, NF-AT, AP-1, AP-3 and Oct-1 are found in the region from nucleotides -593 to -1 of the complete IL-2 gene. The complete sequence of this region is on record with EMBL with accession No. X52618. In addition, in vivo in the mouse genome there is a segment between the regulatory sequences and the IL-2 coding sequence, which is a so-called "signal" sequence. This segment (from nucleotides +1 to +110 in the IL-2 gene) is transcribed and translated but is cleaved from the IL-2 protein after its passage into the endoplasmic reticulum. The signal sequence segment has been published by Fuse et al. , Nucleic Acids Res. 12:9323 (1984). The upstream primer (SEQ. ID #1) has a sequence complementary to the anti-sense strand (e.g., to bind to the antisense strand) , while the downstream primer SEQ. ID #2) has a sequence complementary to the sense strand. Additionally, in this embodiment there are six additional nucleotides on the upstream end of the upstream primer (SEQ. ID #1) and seven additional nucleotides on the downstream end of the downstream end which are not part of the native sequence, and which were added in order to form, respectively, Sail and BglU restriction enzyme recognition sites. These restriction sites were added to aid in cloning and placement next to the amphipathic peptide coding sequence to form the cassette, and for preparing the cassette for transfer into embryos. These two restriction sites were selected for convenience; others could be used if desired. The primers were of sufficient length (twenty-five nucleotides) that the short non-homologous regions at the ends did not interfere with adequate amplification of the desired IL-2-regulon sequences. The PCR-reacted DNA was run on a gel, and a band of about 715 nucleotides in length corresponding to the expected length of the amplified fragment was isolated and identified. The amplified fragment contains the major up- regulatory, cis-acting control sequences of the 5' flanking region of the IL-2 gene, a TATA box, a PstI site at +43, the sequence encoding the 21 amino acid signal peptide, and the added Sail and BglU restriction sites. The amplified fragment was isolated from this band, made blunt-ended, and cloned into the Smal site of pUC18 (commercially available from several suppliers, including U.S. Biochemical, Cleveland OH, cat. #70070; BRL Life Technologies, Gaithersburg MD, cat. #5363SA; and Boehringer Mannheim Corp., Indianapolis IN, cat. #885797). The resulting plasmid was termed pUC-IL.

Shiva-1 is a 38-amino acid polypeptide having seq. ID #3. The sequence for Shiva-l and for other amphipathic peptides and amphipathic peptide homologues can be found in PCT (World) patent publication no. WO 89/00194. In the present case, the Shiva-1 coding sequence was removed from plasmid pMON530 (obtained from Jaynes et al) by digestion with Bglll and EcoRI. The Shiva-1 fragment was separated by electrophoresis and purified from the gel. Plasmid pUC-IL was digested with Bglll and EcoRI, and the Shiva-1 coding fragment was ligated into the gap, such that it was in frame with the signal sequence. The plasmid was tested by restriction digest analysis and by sequencing to determine that it carried the correct insert. The sequence of the complete insert is submitted as SEQ. ID #3 with this application. The plasmid containing the insert having SEQ. ID #3 is referred to as "pILSHI". Subsequently, an SV-40 sequence encoding polyadenylation and mRNA splicing signals was added to the 3' end of the Shiva-1 coding segment to provide for completion of this phase of post-translational processing. This plasmid is referred to as pILSHI-X.

Also, a NEO expression cassette (a selectable marker conferring neomycin resistance) was taken from plasmid pMClNeoPolA (FIG. 1; available from Stratagene, La Jolla CA 92037, catalog no. 213201) by cutting the plasmid with Xho I and Sal I. The fragment corresponding to the NEO cassette was then purified and subcloned into the pILSHI and pILSHI-X plasmids at the Sail site upstream of the IL- 2/Shiva-l sequences, and in reverse orientation to those sequences. The resulting plasmids are respectively referred to as "pILSHI/neo" and "pILSHI-X/neo" . These plasmids both contain the IL-2 promoter and signal re¬ sequences adjacent the Shiva-1 coding sequence, a fusion peptide sequence coding for three amino acids (Arg, Ser, Thr) which intervenes between the signal sequence and the Shiva-1 coding sequence, and the NEO gene under the control of the thymidine kinase promoter. Plasmid pILSHI- X/neo further includes the SV-40 polyadenylation and splice signals, downstream of the Shiva-l coding sequence.

The NEO marker is optional, as it is not needed for the production of transgenic animals (multicellular organisms) , but it is highly desirable for transfections into unicellular organisms such as in vitro cultured cells. Other suitable selectable markers could be used in place of NEO for the cassette.

The pILSHI/neo, pILSHI-X or pILSHI-X/neo plasmids can be propagated in appropriate bacterial strains.

Presently, they are being propagated in E. coli strain DH5αMCR (available from BRL, Gaithersburg, MD) , which is methylase-defective.

A cassette according to the invention may be introduced into a living host by any appropriate method.

It is presently preferred to prepare the cassette DNA to a size of less than about 15 kilobases for insertion. In the embodiment of FIG. 3, this can be done by digestion with Pvul, which cuts at the indicated sites to produce a fragment which is 5422 base-pairs in length. Preferably also, the fragment which carries the cassette is separated from the remaining DNA before insertion.

Insertion of the cassette into the genomes of tissue culture cells or cells and tissues removed from a host, can be performed as known in the art by electroporation, microinjection, and the like. For this purpose, the cassette desirably contains a marker permitting selection of cells which have integrated the cassette, such as the neomycin resistance gene commonly known as NEO. Insertion of the cassette into the genome of a multicellular organism may be accomplished by injection into early embryos. For this purpose, the cassette need not contain a selection marker. It is highly desirable that the cassette be integrated into the genome of the germ cells, so that the cassette will be transmitted to subsequent generations stemming from the original engineered organism. It will generally be necessary to screen the animals which result from the injected embryos to ascertain which have the cassette in their DNA. It may further be desirable to screen either selected tissues or the first generation offspring of the engineered animals, to determine whether the cassette is present in the germline cells.

In an alternate embodiment, the regulatory segment may be the c-myc promoter. The c-myc gene is also selectively expressed in certain cells and in response to disease and wound-related conditions. For example, c-myc is expressed in activated T cells (like IL-2) and in fibroblasts at wound sites. Its expression is also stimulated by growth factors.

Amphipathic peptides (when present at low and non¬ toxic levels) also have the property of stimulating proliferation in mammalian and other cells. Thus, the selective expression of amphipathic peptides in a wound is expected to speed healing of the wound in addition to preventing infection in the area. The sequence for the c- myc gene has been determined and is available under accession #L00038 from EMBL.

In a further embodiment specifically directed at improved wound-healing or stimulation of cell growth, the cassette comprises the c-myc promoter linked to Vishnu-1 or an amphipathic peptide analogue having similar properties. Vishnu-1 is a truncated version of Shiva-1 which lacks the cytolytic and toxic properties of Shiva-1, but still induces proliferation of mammalian and bacterial cells.

EXAMPLE 2. Production of transgenic mouse carrying the cassette. PREPARATION OF DNA FOR INJECTION INTO

EMBRYOS. A Pvul restriction enzyme digest of pILSHI/neo was performed to linearize the DNA and remove a portion of the vector not required for mammalian cell expression. The fragment was purified by agarose gel electrophoresis and separated from the gel slice using GeneClean (Bio 101, La Jolla, CA, 92038-2284) . The DNA was eluted from the glass beads using 10 μL of injection buffer (10 mM tris, 0.15 mM EDTA, pH 7.4) . The solution was then dialyzed through a .025 μm pore size mixed esters of cellulose filter membrane (Millipore, Bedford, MA, 91013) against three changes of a 10 mL pool of injection buffer over 72 h. The DNA concentration of the recovered solution was determined by staining with ethidium bromide and comparing against standards, then the concentration of the solution was adjusted to 2.5 ng/μL.

PREPARATION AND MICROINJECTION OF EMBRYOS AND TRANSFER INTO RECIPIENT FEMALES. Twenty-five six-week old female mice of strain B6SJLF1/J (Jackson Laboratory) were used as embryo donors. Twelve hours before the midpoint of the daily dark cycle, they were given intraperitoneal (IP) injections of seven IU (International Units) of pregnant mare serum gonadotropin (PMSG) . Forty-seven hours later, the mice were given IP injections of 7 IU of human chorionic gonadotropin (hCG) . Immediately after the hCG injections, they were transferred to cages containing proven fertile males of the same strain. No more than two females were in with each male. The donor females were left with the males for 22 hours, then removed and checked for a vaginal plug. Those with plugs were humanely killed, and the reproductive tract was removed and washed in M2 medium. Embryos were released from the ampullar region of the oviduct of these uteri into M2 medium. The embryos were washed in fresh medium, then transferred to M2 medium containing 1 mg/ml hyaluronidase and flushed gently within a small bore pipet to remove cumulus cells. They were then transferred to M2 medium without hyaluronidase, and placed in an incubator at 37°C, 5% C0₂ in air atmosphere, to await microinjection and transfer. Forty-five six and eight week old CD1 (Jackson Laboratory) and FVB/N (Teconic Labs) female mice were used as the recipient females. The same hormone protocol described for preparation of the donor females, was used to prepare the recipient females. The prepared recipient females were induced to pseudopregnancy by mating with vasectomized males (strain C57/B) . As quickly as possible following removal from the donor females, an aliquot of the DNA solution (see above) was microinjected into the pronucleus of each embryo. The microinjected embryos were then transferred into the oviduct of congenic female mice. Microinjection into the pronucleus was performed basically as described by Allen et al. (in: Mammalian Development, a practical approach, M. Monk, editor, Irl Press, Oxford, England, 1987) . On the average, the time the embryos were in M2 medium in the incubator, was generally around 40 min prior to micro- injection and 15 to 60 minutes between micro-injection and transfer into recipient females, for a total of about 1-2 hours. Manipulations were carried out at room temperature in air.

Injected embryos were transferred using a glass pipette to the oviducts of recipient females anesthetized with tribromoethanol (Avertin) , through bilateral flank incisions. Ten to fifteen embryos were transferred to each side. A total of ten recipients were used, of which three delivered live litters at normal gestational term. Nineteen pups survived to weaning at three weeks of age. EXAMPLE 3. Screening for transgenic animals from Example 2. A PCR reaction using mouse tail DNA as template and primers which amplify both native interleukin-2 promoter and the IL2/Shiva 1/neo introduced fragment was performed as the primary detection technique. At weaning, a 1.5 cm length of tissue was cut from the end of each pup's tail and digested overnight in Tail Extraction Buffer (lOOmM tris, 5mM EDTA, .2%SDS, 200mM NaCI, .lmg/mL proteinase K as described by R. Huntress, DNX Inc.). Hair and other undigested tissue was pelletted and the supernatant transferred to a fresh tube containing two volumes of ethanol. Precipitation was carried out over night at 20°C, the precipitate pelletted by centrifugation, and the dried pellet resuspended in 200 μL of TE buffer (10 mM tris, 1 mM EDTA, pH 7.6) .

One microliter of the mouse tail DNA solution was added to the standard reaction described by Perkin Elmer Cetus (Norwalk, CN, 06859) and 40 pMol of a primer for the interleukin-2 5'-flanking region,

TAGATCTTGCGCTGTTGACAAGGAG; 20 pMol of a primer for the interleukin-2 signal sequence, AGTCGACAACGACAAAATAGTACCT; and 20 pMol of a primer for the coding region of the NEO gene, CCACCATGATATTCGGCAAGC. This combination amplifies two regions of transgenic mouse genomic DNA but only one of native mouse DNA. To increase the sensitivity of the detection, a Southern blot was performed as directed in the instructions for the Polar Plex Chemileuminescent Blotting Kit (Millipore) using whole linearized pILSHI/neo plasmid labeled with biotin as a probe. Of the 19 mouse pups tested, one tested positive for the transgene.

EXAMPLE 4. Production of additional transgenic mice carrying the cassette. A BamHI digest of pILSHI-X/neo was prepared as in Example 1. Twenty-five six-week old female mice of strain FVB/N (Taconic Farms, Maryland) were used as embryo donors; these were treated essentially as in Example 1 to produce embryos. The embryos were micro¬ injected also as described previously herein. Forty-five six- to eight-week old recipient female Swiss Webster mice (Taconic Farms) were induced to pseudopregnancy by mating with vasectomized Swiss Webster strain males. Micro¬ injected embryos were implanted into a total of 13 (thirteen) recipient females, of which 12 delivered live litters at the normal gestational term. Seventy-eight pups survived to weaning (three weeks) , at which time samples of tissue were taken for screening as described in Example 2. Of the 78 mouse pups, 26 (twenty-six) tested positive for the transgene by PCR. Twelve transgenic lines carrying the transgene were subsequently established by breeding from these 26 individuals.

EXAMPLE 5. Spleen-derived lymphocytes were isolated from F2 generation offspring of six lines of transgenic mice from Example 4, and stimulated with concanavalin- . Transcription of Shiva-1 was measured by reverse transcription of total mRNA from the lymphocytes and PCR amplification targeted to the Shiva-1 coding sequence. In the PCR amplification, Shiva-1 encoding mRNA was observed in lymphocyte samples derived from 3 different individuals from one line of transgenic mice. It was noted that mice from the line in which Shiva-1 transcription was observed did not exhibit any deleterious effects as to growth or general health.

The cassette of the invention is useful for numerous purposes. First, it may be used to produce transgenic animals which have resistance to disease, particularly to organisms which are susceptible to killing by amphipathic peptides. Such a disease-resistant trait would be useful in cows, sheep, pigs, chickens, and other domestic animals, as it would reduce the frequency and severity of common bacterial, fungal and protozoan infections. Since amphipathic peptides can also attack mammalian cells infected by some viruses, viral infections could also be mitigated. The reduction in infections would contribute to faster growth of animals to market size and lower veterinary costs for farmers who raised such disease- resistant animals. The cassette is also useful to transform cells removed from a diseased human patient or animal, so that upon re-introduction into the patient, disease resistance may be enhanced or a particular disease treated. For example, tumor-infiltrating lymphocytes (TILs) can be recovered from a patient's own tumor, transfected in vitro with the cassette, and reintroduced into the host. TILs selectively migrate into tumor tissue and are known to produce high levels of IL-2. Amphipathic peptides and lytic peptide analogues are known to have selective cytocidal activity against tumor cells. Various amphipathic peptides and lytic peptide analogues are known to differ in their effectiveness against fungi, protozoa, and tumor cells. For example, melittin is believed to be particularly effective against tumor cells and thus may be preferred for transfection of TILs.

An advantage of the cassette is that, since it provides its own regulating sequences, the probability of success using random integration techniques is generally high. Further, the types of regulating sequences used ensure that the expression of the amphipathic peptide or lytic peptide analogue is substantially limited to circumstances where it is desirable, e.g. conditions where an infection or a wound exists. Amphipathic peptide expression is further limited to certain cell types which are targeted to the infection or wound site. Injury to the host by production of the amphipathic peptide when it is not needed, is avoided.

SEQUENCE LISTING

(1) GENERAL INFORMATION:

(i) APPLICANT: White PhD, Kenneth Morrey PhD, John Reed, William

(ii) TITLE OF INVENTION: Cassette for Expression of Lytic Peptides in Mammalian Transgenic Organisms

(iii) NUMBER OF SEQUENCES: 32

(iv) CORRESPONDENCE ADDRESS:

(A) ADDRESSEE: Trask Britt and Rossa

(B) STREET: P.O. Box 2550

(C) CITY: Salt Lake City

(D) STATE: Utah

(E) COUNTRY: USA

(F) ZIP: 84110

(v) COMPUTER READABLE FORM:

(A) MEDIUM TYPE: Floppy disk

(B) COMPUTER: IBM PC compatible

(C) OPERATING SYSTEM: PC-DOS/MS-DOS

(D) SOFTWARE: Patentin Release #1.0, Version #1.30

(vi) CURRENT APPLICATION DATA:

(A) APPLICATION NUMBER: US

(B) FILING DATE:

(C) CLASSIFICATION:

(viii) ATTORNEY/AGENT INFORMATION:

(A) NAME: Bond, Laurence B.

(B) REGISTRATION NUMBER: 30,549

(C) REFERENCE/DOCKET NUMBER: 2549PC

(ix) TELECOMMUNICATION INFORMATION:

(A) TELEPHONE: 8015321922

(B) TELEFAX: 8015319168

(2) INFORMATION FOR SEQ ID NO:l:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 25 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: double

(D) TOPOLOGY: linear

(ii) MOLECULE TYPE: DNA (genomic)

(vi) ORIGINAL SOURCE:

(A) ORGANISM: Mouse

(B) STRAIN: 3T3 Swiss albino (xi) SEQUENCE DESCRIPTION: SEQ ID NO:l: AGTGGACAAC GACAAAATAG TACCT 25

(2) INFORMATION FOR SEQ ID NO:2:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 25 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: double

(D) TOPOLOGY: linear

(ii) MOLECULE TYPE: DNA (genomic)

(vi) ORIGINAL SOURCE:

(A) ORGANISM: Mouse

(B) STRAIN: 3T3 Swiss albino

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:2: TAGATCTTGC GCTGTTGACA AGGAG 25

(2) INFORMATION FOR SEQ ID NO:3:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 932 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: double

(D) TOPOLOGY: linear

(ii) MOLECULE TYPE: DNA (genomic)

(vi) ORIGINAL SOURCE:

(A) ORGANISM: Mouse

(B) STRAIN: 3T3 Swiss albino

(XI) SEQUENCE DESCRIPTION: SEQ ID NO:3:

GTAAAACGAC GGCCAGTGCC AAGCTTGCAT GCCTGCAGGT CK3ACTCTAGA GGATCCCCAG 60

TCGACAACGA CAAAATAGTA CCTCΑAGCTC AACAAGCATT TTAGGTGTCC TTAGCTTACT 120

ATITCTCΓGG CΓAACΓGTAT GAAGCCATCT ATCACCCTGT GTGCAATTAG CTCATTGTGT IΘO

AGATAAGAAG GTAAAACCAT CTTGAAACAG GAAACCAATA TCCTTCCTGT CTAATCAACA 240

AATCTAAAAG ATTTATTCTT TTCATCTATC TCCTCTTGCG TTTGTCCACC ACAACAGGCT 300

GCTTACAGGT TCAGGATGGT TTTGACAAAG AGAACATTTT CATGAGTTAC TΓΓTGTGTCT 360

CCACCCCAAA GAGGAAAATT TGTTTCATAC AGAAGGCGTT CATTGTATGA ATTAAAACTG 420

CCACCTAAGT GTGGGCTAAC CCGACCAAGA GGGATTTCAC CTAAATCCAT TCAGTCAGTG 480

TATGGGGGTT TAAAGAAATT CCAGAGAGTC ATC&GAAGAG GAAAAACAAA GGTAATGCTT 540 TCTGCCACAC AGGTAGACTC TTTGAAAATA TGTGTAATAT GTAAAACATC GTGACACCCC 600

CATATTATTT TTCCAGCATT AACAGTATAA ATTGCCTCCC ATGCTGAAGA GCTGCCTATC 660

ACCCTTGCTA ATCACTCCTC ACAGTGACCΓ CAAGTCCTGC AGGCATGTAC AGCATGCAGC 720

TCGCATCCTG TGTCACATTG ACAC TGTGC TCCTTGTCAA CAGCGCAAGA TCTACCATGC 780

CGCCCTGGCG TCTGTTCCGC CGTATCGACC GTGTTGGCAA ACAGATCAAA CAGGGTATCC 840

TGCCGTGCTG GCCCGGCTAT CXXTTCTGGTT GGCGACGCCC GCGCAGTTGG TTGAGAATTC 900

GTAATCATGG TCATAGCTGT TTCCTGTGTG AA 932 (2) INFORMATION FOR SEQ ID NO:4:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 21 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: double

(D) TOPOLOGY: unknown

(ii) MOLECULE TYPE: DNA (genomic)

(iii) HYPOTHETICAL: NO

(vi) ORIGINAL SOURCE:

(A) ORGANISM: Streptomyces fradiae

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:4: CCACCATGAT ATTCGGCAAG C 2

(2) INFORMATION FOR SEQ ID NO:5:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 11093 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: double

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Construct comprising portions of Bos taurus beta casein gene and genes encoding amphipathic peptide and green fluorescent protein"

(iii) HYPOTHETICAL: YES

(iv) ANTI-SENSE: NO

(ix) FEATURE:

(A) NAME/KEY: exon

(B) LOCATION: 1801..1834

(D) OTHER INFORMATION: /product= "beta casein exon 1" (ix) FEATURE :

(A) NAME/KEY: exon

(B) LOCATION: 3780..3832

(D) OTHER INFORMATION: /product= "beta casein exon 2"

(ix) FEATURE:

(A) NAME/KEY: TATA_signal

(B) LOCATION: 1766..1773

(ix) FEATURE:

(A) NAME/KEY: exon

(B) LOCATION: 4567..4590

(D) OTHER INFORMATION: /product= "portion of beta casein exon 3"

(ix) FEATURE:

(A) NAME/KEY: 5'UTR

(B) LOCATION: 127..1800

(D) OTHER INFORMATION: /function= "5' flanking regulatory region of bovine beta casein gene"

(ix) FEATURE:

(A) NAME/KEY: mat_peptide

(B) LOCATION: 4587..5310

(D) OTHER INFORMATION: /product= "Green fluorescent protein"

(ix) FEATURE:

(A) NAME/KEY: mat_peptide

(B) LOCATION: 5320..5449

(D) OTHER INFORMATION: /product= "Shiva-1 coding sequence"

(ix) FEATURE:

(A) NAME/KEY: polyA_signal

(B) LOCATION: 7630..7635

(D) OTHER INFORMATION: /standard_name= "Bovine beta casein 3' region, in exon 9"

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:5:

TAGTTATTAA TAGTAATCAA TTACGGGGTC ATTAGTTCAT AGCCCATATA TC^GAGTTCCG 60

CGTTACATAA CTTACGGTAA ATGGCCCGCC TGGCTGACCG CCCAACGACC CCCGCCCATT 120

GACGTCGTCA TTAGGAAATT CTCTGTTTAT TGCACAATAT GTAAAGCATC TTCCTGAGAA 180

AAOGGAAATG TTGAATGGGA AC^GACATGCT TTCTTTTGTA TTCLTI I'CT CAGAAATCAC 240

ACTITTTTGC CTGTGGCCTT GGCAACCAAA AGCTAACACA TAAAGAAAGG CATATGAAGT 300

AGCCAAGGCC TTITCTAGTT ATATCTATGA CACTGAGTTC ATTTCATCAT TTATTTTCCT 360

GACTTCCTCC TGGGCCATAT GAGCAGTCTT AGAATGAATA TTAGCTGAAT AATCCAAATG 420

CATAGTAGAT GTTGATTTGG GTTTTCTAAG CAATACAAGA CTTCTATGAC AGTGAGATGT 480 ATTACCATCC AACACACATC TCAGCATGAT ATAAATGTAA GGTATATTGT GAAGAAAAAT 54

TATCAATTAT GTCAAAGTGC TTACTTTAGA AGATCATCTA TCTGTCCCAA AGCTGTGAAT 60

ATATATATTG AACATAATTA ATAGACGAAA C^AACCTTGT AAAAATGAGT AGTGTAAAAT 66

ACAACTACAT TTATGAACAT CTATCACTAA AGAGGCAAAG AAAGTTGAGG ACTGCJ.TJ.TG 72

TAAATGGGCT CTTATTAATG AAAAGTACTT TTGA∞TCTG CCTTAGACTC TATTGTAGTA 78

CTTATGGTAA GACCCTCCTC TTGTCTGGGC TTTCATTTTC TTTCTTCCTT CCCTCATTTG 84

CCCTTCCATG AATACTAGCT GATAAACATT GACTCACTAT AAAAGATATG AGGCCAAACT 90

TGAGCTGTCC ATTTTAATAA ATCTGTATAA ATAATATTTG TTCTACAGAA GTATCTCTAA 96

ATAAATGTAC TITCTCTCTT AAAATCCCTC AACAAATCCC CACTATC AG AGAATAAGAT 102

TGACATTCCC TGGAGTCACA GCΑTGCTTTG TCTGCCATTA TCTGACCCCT TTCTCTTTCT 108

CTCTTCTCAC CTCCΆTCTAC TCCTTTΓTCC TTGCAATACA TGACCCAGAT TC^CTGTTTG 114

ATTIGGCTTG CATGTGTGTG TGCTGAGTTG TGTCTCACTC TTGTCAACCC CATGAATGAC 120

AGTCCACCAG GCTCCACTAT TTCCAGTTAA GAATACTGGA GTGGATTGTG TTTCCTACTT 126

CΆTTTGATTA ATTTAGTGAC TTTTTAAATT TITTTCCATA TTCAGGAGGC TATΓCTTTCC 132

TTTTAGTCTA TACTGTCTTC GCTCTTCAGG TCTAAGCTAT CATCATGTGC TTGTTAGCTT 138

GTTTCTTTCT CCATTATAGC ATAAACACTA ACAACTATTC AGGTTAGCAT GAGATTGTGT 144

TCTTTGTGTG GCCTGTGTAT TΓCTGGTGTG TATTAGAATT TACCCCAAGA TCTCAAAGAC 150

CCACCGAATA CTAAAGAGAC CTCATTGTAG TTACAATAAT TTGGGGACTG GGCCAAAACT 156

TCCGTGTGTC CCAGCCAAGG TCTGTAGCTA CTGGACAATT TAATTTCCTT TATCAGATTG 162

TGAATTATTC CCTTTAAAAT GCTCCCCAGA ATTTTTGGGG ACAGAAAAAT AGGAAGAATT 168

CATTTTCTAA TCATGCAGAT TTCTAGGAAT TCAAATCCAC TATTGGTTTT ATTTCAAACC 174

ACAAAATTAG CATGCCATTA AATACTATAT ATAAACAACC ACAAAATCAG ATCATTATCC 180

ATTCAGCTCC TCCTTCACTT CTTGTCCTCT ACTTTGGAAA AAAGGTAAGA ATCTCAGATA 186

TAATTTCATT GTATCTGCTA CTCATCTTTA TTTCAGACTA GGTTAAAATG TAGAAAGAAC 192

ATAATTGCTT AAAATAGATC TTAAAAATAA GGATGTTTAA GATAAAGTTT ACAGTATTTT 198

CAGCAAATTT GTTAAAAAAT AGAAGCAACT ATAAAGATTT GTAACAGTGG TTGCTATTTT 204

CTTTACCACG AGACTAGTTA ACAGGCTGTA TTAAAAGATC TTTTCTTGAA TTAAATATTT 210

TCAATTTGAT TAAACATACC TCAGCCATAA AGGCAAGCAC ATTTAATTTA TACTATGGGA 216

ATTTGAATAA TTGTTACTGA AGAAGCTCTA CCAACAAAAA GTTTATAGAG CTAGCATATT 222 TAGTCAAGAG ATAAAGAGGG TTGTTAGGAT ACATGTGCTA TTTGAAAGGT ATTTATAAAA 2280

GAAGAGTATA TTTATTAAAA TTGCTCAGAA CATCCAAATT TCAAGTTTAT CATTTATCTT 2340

ACAATATTTC AAAAATATTA AAATAGATAC ATGAAATACA GAAGTAAATT AAAGAGAAAG 2400

TATTTTATTT TGTAAAAAAA AATTCTAGGT TGGACAGGGA GTACCAGGAA ACAAAAAACA 2460

ATGAAAAATG TGATCTGACA GAAATTATAG CTCAAAGTAT AGTAGTCAGT AATGAAATGG 2520

CTTAAAAATT GGCATATAAA ATGCTAATTA TAAAATAAAC AAAATGTAAT AATACCCTCC 2580

CTACATGTAA TGAACTCTGA GTATTATACT CTITTTTGAA GTCTTGACAA TGAAAATTTA 2640

TTTAGACTTT TATAGACATC TTGGATAAAG TAAAACAAAT TACGAATTAG CATCCATGAG 2700

AAAAATATAG AAAAATTTCT TAATGTAGTT TGCAAATCTG GGGATTGAAG ATSTGTGTCA 2760

AGAGATTGTG ATGGCAGACA TITITITTCA GACTATAAAA TGCACAAACA ACCATTTAAT 2820

A(^TTTTGGT CAAAAATAGT ATGTATTTTA TTTTATGCTA CAGGAGAGTA GTCTAAAGTA 2880

GGACTGGGCA GAGATCTGAC ACCCTGGTAA TCACCGAGAG ATAGTACACA GTCTCTGTAG 2940

AGAAAATAAG CATAGTGTAT GATCTCTAAA ATTATGTGGA CAAAGGGGAG ATAACATTAG 3000

GCATGTGGGG ATGAAGACTG AGTACAGAAG AACAATCTAG TCAGTCCAAG AAAACATGTG 3060

GATCAATGGA ACAAATAGAA GAAATGCTAA AATGAAACAG AAGTCTTACT GGAAATAAAA 3120

GATATGAGGA AGACAAACAT TCATGAAAAT CACTTAGTTT AGTAGAGAAA AGATAAAAAT 3180

AAAGTATTAC CITCTTCTTC ATATACATTG TTTGATCAGA TGCCCCTCAA TAAAACTGAG 3240

TCTCCAACAG AACTGAAACT TTAATATTTT GTTCACTGCT CTAATCCCAG AATCTAAGAC 3300

ATATCTGGCA ATAAAAATTA ATAAATAAAT ATTTTTAATA AGTAAATCAA TCACTTAATT 3360

TTTCTGTAAG TATCTGTAAC TTCTCTTCTG TCTTTCCAAA AAACACTCAT AAGTACTGTG 3420

AATAAGATGA AAAGAGTGAA ATAAGATATA GGCTGTTAGC TGAAAACATC TGGATGGCTG 3480

GCAGTGAAAC ATTAACTTGA AATGTAAGAT TAATGAGTAA TAGTAAATTT TAACCTTGGC 3540

CGTATGATAA AATGTCTATT AATATITTTC TAAAATACAG GGCTITTTGT TTTTGCCATG 3600

AGGTTTGCAG GATCTTGGTT CCCTGATGAG GGATCAAACC TGGGCTCCCC TGGAAGCACG 3660

GAGTCTTAGA TATTTGTATT ATACACTATC TTTGGTTTCT TTTAAAGGGA AGTAATTCTA 372

CTTAAATAAG AAAATAGATT GACAAGTAAT ACACTATTTC CTCΑTCTTCC CATTCCCAGG 378

AATTGAGAGC CATGAAGGTC CTCATCCTTG CCIGCCTGGT GGCTCTGGCC CTTGCAAGAG 384

AGGTAAATAC AGAAAAAATG TTGAAATAAA TAAGACTAGT ACTATCTGCT ATGTGTAGAA 390

AATTCATTAC CAACATTGTA AATGTATAAA TAATGCACAA TCTCAGATTT TTTTTGAATG 396 CTAAGAAAGT CΑTTTACGTT CATCCACTAT CTCAGTAGTA TCCTATGGGA CCACAAGTCT 402

GAGTCTAGTG CTTTCTATAG TATTGTACCA TCTGTACCAT CAATCCCTAA AGAAAAAAGA 408

AAATAAACCA ATAAGCAACA GACTAACAAG AAGGAACACA GATAAGAACA AAAAGTGAGT 414

AATATTGCAT AAATACAATT GCATGCATAT ACAATCTAGA TAAATATATC TTATTCCAGT 420

GATGAAATAT TTGTATCCCT TACTGTAGAG TGCTAGGTTT AGCTGTGTCT ATTCAACACA 426

GGATGATACT CCAGAGGATG GTATATCAGA CAACAATAAT AAATATGTTC ATAATTATAA 432

TAAAAAGTGT TCAGTAAAAA TTAAAATAAC TCCTITTCTG TTACCCATAA AAACTCTTCA 438

TTAAAGTAAA ACAAAAATAT ACTAATGAAA GTTACTAAAT TTAAAAGACT CTCAAAAGAC 444

ATATAACATT TTTATTLTTC AGATTTGTGA AATAGATAGC TCTGAATAAA GCAAGTAAAA 450

ATTAGGTAGG AAAATATTTA ATAATGAGTT GACTGTGGGA ACTAAAGTGT TTTITTTTCT 456

CITΓAGCTGG AAGAACTCAA TGTACCGGTC GCCACCATGG GTAAAGGAGA AGAACTTTTC 462

ACTGGAGTTG TCCCLAATTCT TGTTGAATTA GATGGTGATG TTAATGGGCA CAAATTrTCT 468

GTCAGTGGAG AGGGTGAAGG TGATGCAACA TACGGAAAAC TTACCCTTAA ATTTATTTGC 474

ACTACTGGAA AACTACCTGT TCCATGGCCA ACΑCTTGTCA CTACTITCTC TTATGGTGTT 480

O.ATGCTTTT CAAGATACCC AGATCATATG AAACGGCATG ACTTTTTCAA GAGTGCCATG 486

CCCGAAGGTT ATGTACAGGA AAGAACTATA TTTTTCAAAG ATGACGGGAA CTACAAGACA 492

∞TGCTGAAG TCAAGTTTGA AGGTGATACC CTTGTTAATA GAATCGAGTT AAAAGGTATT 498

GATTTTAAAG AAGATGGAAA CAT TTGGA CACAAATTGG AATACAACTA TAACTCACAC 504

AATGTATACA TCΑTGGCAGA CAAACAAAAG AATGGAATCA AAGTTAACTT CAAAATTAGA 510 ACAACA TG AAGATGGAAG CGTTCAACTA GCAGACCATT ATCAACAAAA TACTCCAATT 516

GGCGATGGCC CTGTCCTTTT ACCAGACAAC CATTACCTGT CCACACAATC TGCCCTTTCG 522

AAAGATCCCA ACGAAAAGAG AGACCACATG GTCCTTCTTG AGTTTGTAAC AGCTGCTGGG 528

ATTACACATG GCATGGATGA ACTATACAAG TCCGGACTCA GATCTACCAT GCCGCGCTGG 534

CGTCTGTTCC GCCGTATCGA CCGTGTTGGC AAACAGATCA AACAGGGTAT CCTGCGTGCT 540

GGCCCGGCTA TCXXTCTGGT TGGCGACGCC CXSCGCAGTTG GTTGAGAATT CTGCAGTCGA 546

CGGTACCAGG ATAAAATCCA CCCCTTTGCC CAGACACAGT CTCTAGTCTA TCCCTTCCCT 552

GGACCCATCC ATAACAGCCT CCCACAAAAC ATCCCTCCTC TTACTCAAAC CCCTGTGGTG 558

GTGCCGCCTT TCCTTCAGCC TGAAGTAATG GGAGTCTCCA AAGTGAAGGA GGCTATGGCT 564

CCTAAGCACA AAGAAATGCC CTTCCCTAAA TATCCAGTTG AGCCCTTTAC TGAAAGCCAG 570 AGCCTGACΓC TCACTGATGT TGAAAATCΓG CAC ΓTCCTC TGCCΠ-TGCT CCAGTCTTGG 5760

ATGCACCAGC CTCACCAGCC TCTTCCTCCA ACTGTCATGT TTCCTCCTCA GTCCGTGCTG 5820

TCCCTTTCTC AGTCCAAAGT CCTGCCTGTT CCCCAGAAAG CAGTGCCCTA TCCCCAGAGA 5880

GATATGCCCA TTCAGGCCTT TCTGCTGTAC CAGGAGCCTG TACTCGGTCC TGTCCGGGGA 5940

CCCTTCCCTA TTATTGTAAG TCTAAATTTA CTAACTGTGC CTGTTTAACT TCTGATGTTT 6000

GTATGATATT CGAGTAATTA AGAGTCCTAT AAAAAAATGA ATAATGAATG GTTCCAAAAT 6060

AAGCATAGCT GAGATTAATG ATIGTCAGCA TTAGTTATAA ATAGAATAAG CTGGAGAACC 6120

TTCACCTCCC CTCCACCACC AGATCTCAAT GTCTAGGCTT ACCCGTGGAG ATTCTGATGT 6180

AATIGTTCTT TCTATGTAGA AGAAACTTAT TGGGAAGAAA TAATATAATG GACTATGATT 6240

TAATTGGTCT GTTGAGAACC AATTAAATTA GATGAAAGCG ATTAAGTACA ATAAAGCCAA 6300

AATTGAATTT GATAATCTCA TTTGGCTAAG AATAACAAAC CTAAGAAGGT TTGCTATTTT 6360

CTACAATTTT GAAGTTCTCC TTATGCACAA TTATTTCACC ACATCACTCA TTTCACATCG 6420

TGTITTTGAT ATATGAGCAT ATGAGGGAAA AATACTGAGA TGCTTATTTC AATACTCAGG 6480

GAAAATTTAT TGCCAAAAGG CAAGAAATGT ATAATTCATT C1ACTTATTTT ATTTTATTAT 6540

TTTTTTTATT TTTAAGGTCT AAGAGGATTT CAAAGTGAAT GCCCCCTCCT CALTJ.T1GGT 6600

AAGCTTTAGG ATATTGGAGG CAGACTGATC ATTTTTATAG TTAATATCTT TTACATTTCA 6660

TTTTCCTGGA TAAGCCCCAA TAGTAGCAAT TTCCATCAGT GTACCAGCTT AAAGATTAAT 6720

TATAAATTTA TTITCAATGA TTGACTGTTA TTTACTGGCC TGAAATTATG TATCTGTTAT 6780

ATTTCAAATA ATGCAAAACT GTATATATAT GGTGTTTACA GATITGATTG GTITTCTTTC 6840

AATAGCCTAT ATCCTTATTA TTGATTGTCA TCATTTATAG AAAAAACTGA AAATAATTTC 6900

TTATACTTTT ATGTAAACCT GTTAGAGCTT ATTTTAAAGA TCAACTGCAT TCΑCMTTCT 6960

AATCTAGTCA TTATSAGCTT CAATAGTTiT ATCTCACTTA AAATATATAT ATTGTCTTTT 7020

AATTCATGAG TCAAAATACA ATCTCACAGT CCAGATATGG GACTTAAAAG GGGGATAGAA 7080

TATAGTTTTG ATATTCTTAA CAATACACAT CCTTTTGTGA TCATGATTCA GCAGACATTT 7140

AATAAAATGA TTCCAAGTAA GCCGATGTTT GGTCCTAGAG GAATTTTTAT AACCTTTAAG 7200

AGAAGGCATA GCATGGTGTT TTTGTAATAA GATITCTTTT ATGAAAAAGT CACACCAAAA 7260

TTGCAAATGG GGGTGAGATG AAGAGTTATA ACATATAACT AAATCTATGT TTGTTCTCTA 7320

TTCCACAGAA TTGACTGCGA CTGGAAATAT GGCAACTTTT CAATCCTTGC ATCATGTTAC 7380

TAAGATAATT TTTAAATGAG TATACATGGA ACAAAAAATG AAACTTTATT CCTTTATTTA 7440 TTTTATGCTT TTTCATCTTA ATTTGAATTT GAGTCATAAA CTATATATTT CAAAATTTTA 7500

ATTCAACATT AGCATAAAAG TΓCAATTTTA ACTTGGAAAT ATCATGAACA TATCAAAATA 7560

TGTATAAAAA TAATTTCTGG AATTGTGATT ATTATTTCTT TAAGAATCTA TTTCCTAACC 7620

AGTCΆTTTCA ATAAATTAAT CCTTAGGCAT ATTTAAGTTT TCTTGTCTTT ATTATATTTT 7680

TTTTAATGAA ATT∞TCTCT TTATTGTTAA CTTAAATTTA TCTTTGATGT TAAAAAGAGC 7740

TGTGGAAAAT TAAAATTGGA GGATCTAGAT AACTGATCAT AATCAGCCAT ACCACATTTG 7800

TAGAGGTTTT ACTTGCTTTA AAAAACCTCC CACACCTCCC CCTGAACCTG AAACATAAAA 7860

TGAATGCAAT TGTTGTTGTT AACTTGTTTA TTGC&GCTTA TAATGGTTAC AAATAAAGCA 7920

ATAGCATCAC AAATTTCACA AATAAAGCAT TTITTTCACT GCATTCTAGT TGTGGTTTGT 7980

CCAAACTCAT CAATGTATCT TAACGCGTAA ATTGTAAGCG TTAATATTTT GTTAAAATTC 8040

GCGTTAAATT TTTGTTAAAT CAGCTCATTT TTTAACCAAT AGGCCGAAAT CGGCAAAATC 8100

CCTTATAAAT CAAAAGAATA GACCGAGATA GGGTTGAGTG TTGTTCCAGT TTGGAACAAG 8160

AGTCCACTAT TAAAGAACGT GGACTCCAAC GTCAAAGGGC GAAAAACCGT CTATCAGGGC 8220

GATGGCCCAC TACGTGAACC ATCACCCTAA TCAAGTTTTT TGGGGTCGAG GTGCCGTAAA 8280

GCACTAAATC GGAACCCTAA AGGGAGCCCC CGATTTAGAG CTTGACGGGG AAAGCCGGCG 8340

AACGTGGCGA GAAAGGAAGG GAAGAAAGCG AAAGGAGCGG GCGCTAGGGC GCTGGCAAGT 8400

GTAGCGGTCA CXXTGCGCGT AACCACCACA CCCGCCGCGC TTAATGCGCC GCTACAGGGC 8460

GCGTCAGGTG GCACTTTTCG GGGAAATGTG CGCGGAACCC CTATTTGTTT ATITTTCTAA 8520

ATACATTCAA ATATGTATCC GCTCATGAGA CAATAACCCT GATAAATGCT TCAATAATAT 8580

TGAAAAAGGA AGAGTCCTGA GGCGGAAAGA ACCAGCTGTG GAATGTGTGT CAGTTAGGGT 8640

GTGGAAAGTC CCCAGGCTCC CCΑGCAGGCA GAAGTATGCA AAGCATGCAT CTCAATTAGT 8700

CAGCAACCAG GTGTGGAAAG TCCCCAGGCT CCCCAGCAGG CAGAAGTATG CAAAGCATGC 8760

ATCTCAATTA GTCAGCAACC ATAGTCCCGC CCCTAACTCC GCCCATCCCG CCCCTAACTC 882

CGCCCAGTTC CGCCCATTCT CCGCCCCATG GCTGACTAAT TITTTTTATT TATGCAGAGG 888

CCGAGGCCGC CTCGGCCTCT GAGCTATTCC AGAAGTAGTG AC^GAC^GCTTT TITGGAGGCC 894

TAGGCTTTTG CAAAGATCGA TCAAGAGACA GGATGAGGAT CGTTTCGCAT GATTGAACAA 900

GATC^GATTGC ACCCAGGTTC TCCGGCCGCT TGGGTGGAGA GGCTATTCGG CTATGACTGG 906

GCACAACAGA CAAΥCGGC G CTCTGATGCC GCCGTGTTCC GGCTGTCAGC GCΛCGGGCGC 912

CCGGTTCTTT TIGTCAAGAC CGACCTGTCC GGTGCCCTGA ATGAACTGCA AGACGAGGCA 918 GCXSCGGCTAT 03IGG IGG CACGACGGGC GTTCCTTGCG CAGCTGTGCT CGACGTTGTC 9240

ACTGAAGCGG GAAGGGΆCTG GCTGCTATTG GGCGAAGTGC CGGGGCAGGA TCTCCΓGTCA 9300

TCTCACCTTG CTCCTGCCGA GAAAGTATCC ATCATGGCTG ATGCAATGCG GCGGCIGCAT 9360

ACX3CTTGATC CX3GCTACCTG CCCATTCGAC CACCAAGCGA AACATCGCAT CX3AGCGAGCA 9420

∞TACTCGGA TGGAAGCCGG TCTTGTCGAT O^GGATGATC TGGACGAAGA GCATCAGGGG 9480

CTCGCGCCAG CCGAACTGTT CGCCAGGCTC AAGGCGAGCA TGCCCGACGG CX3AGGATCTC 9540

GTCGTGACCC ATGGCGATGC CTGCTTGCCG AATATCATGG TGGAAAATGG CCGCJ.T1TCT 9600

GGATTCATCG ACTGTGGCCG GCTGGGTGTG GCGGACCGCT ATCAGGACAT AGCGTTGGCT 9660

ACCCGTGATA TTGCTGAAGA GCTTGGCGGC GAATGGGCTG ACCX3CTTCCT CGTGCTTTAC 9720

GGTATCGCCG CTCCCGATTC GCAGCGCATC GCCTTCTATC GCCTTCTTGA CGAGTTCTTC 9780

TGAGCGGGAC TCTGGGGTTC GAAATGACCG ACCAAGCGAC GCCCAACCTG CCATCACGAG 9840

ATITCGATTC CACCGCCGCC TTCTATGAAA GGTTGGGCTT CGGAATCGTT TTCCGGGACG 9900

C -GCTGGAT GATCCTCCAG CGCGGGGATC TCΑTCCTGGA GTTCTTCGCC CACCCTAGGG 9960

GGAGGCTAAC TGAAACACGG AAGGAGACAA TACCGGAAGG AACCCGCGCT ATGACGGCAA 10020

TAAAAAGACA GAATAAAACG CACGGTGTTG GGTCGTTTGT TCATAAACGC GGGGTTCGGT 10080

CCC.AGGGCTG GCACTCTGTC GATACCCCAC CGAGACCCCA TTGGGGCCAA TACGCCCGCG 10140

TTTCTTCCTT TTCCCCACCC CACCCCCCAA GTTCGGGTGA AGGCCCAGGG CTCGCAGCCA 10200

ACGTCGGGGC GGCAGGCCCT GCCATAGCCT CAGGTTACTC ATATATACTT TAGATTGATT 10260

TAAAACTTCA TTTTTAATTT AAAAGGATCT AGGTSAAGAT CCTITTTGAT AATCTCATGA 10320

CCAAAATCCC TTAACGTGAG TTTTCGTTCC ACTGAGCGTC AGACCCCGTA GAAAAGATCA 10380

AAGCATCTTC TTGAGATCCT TlTlTrCTGC GCGTAATCTG CTCCTTGCAA ACAAAAAAAC 10440

CACCGCTACC AGCGGT3GTT TGTTTGCCGG ATCT-AGAGCT ACCAACTCTT TTTCCGAAGG 10500

TAACTGGCTT CAGCAGAGCG CAGATACCAA ATACTGTCCT TCTAGTGTAG CCGTAGTTAG 10560

GCCACCACTT CAAGAACTCT GTAGCACCGC CTACATACCT OKTCTGCTA ATCCTGTTAC 10620

C-AGTGGCTGC TGCCAGTGGC GATAAGTCGT GTCTTACCGG GTTGGACTCA AGACGATAGT 10680

TACCGGATAA GGCGCAGCGG TCHSCCTGAA CGGGGGGTTC GTGCACACAG CCC&CCTTGG 10740

AGCGAACGAC CTACACCGAA CTSAGATACC TACAGCGTGA GCTATGAGAA AGCGCCACGC 10800

TTCCCGAAGG GAGAAAGGCG GACAGGTATC CGGTAAGCGG CAGGGTCGGA ACAGGAGAGC 10860

GCACGAGGGA GCTTCCAGGG GGAAACGCCT GGTATCTTTA TAGTCCTGTC GGGTTTCGCC 10920 ACCTCTGACT TGAGCGTCGA TTTTTGTGAT GCTCGTCAGG GGGGCGGAGC CTATGGAAAA 10980

ACGCCAGCAA CGCGGCCTTT TTACGGTTCC TGGCCTTTTG CTGGCCTTTT GCTCACATST 11040

TCTTTCCTGC GTTATCCCCT GATTCTGTGG ATAACCGTAT TACCGCCATG CAT 11093

(2) INFORMATION FOR SEQ ID NO:6:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 8797 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: double

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Construct comprising Bos taurus beta casein 5' regulatory region plus genes encoding amphipathic peptide and green fluorescent protein"

(iii) HYPOTHETICAL: YES

(iv) ANTI-SENSE: NO

(xi) SEQUENCE DESCRIPTION: SEQ ID NO: 6 :

TAGTTATTAA TAGTAATCAA TTACGGGGTC ATTAGTTCAT AGCCCATATA TGGAGTTCCG 60

CGTTACATAA CTTACGGTAA ATGGCCCGCC TGGCTGACCG CCCAACGACC CCCGCCCATT 120

GACGTCGTCA TTAGGAAATT CTCTGTTTAT TGCACAATAT GTAAAGCATC TTCCTGAGAA 180

AAGGGAAATG TTGAATGGGA AGGACATGCT T TTTTGTA TTCCTITTCT CAGAAATCAC 240

ACITITTTGC CT3TGGCCTT GGCAACCAAA AGCTAACACA TAAAGAAAGG CATATGAAGT 300

AGCCAAGGCC TTITCTAGTT ATATCTATGA CACIGAGTTC ATTTCATCAT TTATTTTCCT 360

GACTTCCTCC TGGGCCATAT GAGCAGTCTT AGAATGAATA TTAGCTGAAT AATCCAAATG 420

CATAGTAGAT GTTGATTTGG GTTTTCTAAG CAATACAAGA CTTCTATGAC AGTGAGATGT 480

ATTACCATCC AACACACATC TCAGCATGAT ATAAATGTAA GGTATATTGT GAAGAAAAAT 540

TATCAATTAT GTCAAAGTGC TTACTTTAGA AGATCATCTA TCTGTCCCAA AGCTGTGAAT 600

ATATATATTG AACATAATTA ATAGACGAAA C AACCTTGT AAAAATGAGT AGTGTAAAAT 660

ACAACTACAT TTATGAACAT CTATCACTAA AGAGGCAAAG AAAGTTGAGG ACTGCTTTTG 720

TAAATGGGCT CTTATTAATG AAAAGTACTT TTGAGGTCTG GCTΓAGACTC TATTGTAGTA 78

CTTATGGTAA GACCCTCCTC TIGTCTGGGC TITCΑTTTTC TTTCTTCCTT CCCTCATTTG 84

CCCTTCCATG ATACTAGCT GATAAACATT GACTCACTAT AAAAGATATG AGGCCAAACT 90 TGAGCTGTCC ATTTTAATAA ATCTGTATAA ATAATATTTG TTCTACAGAA GTATCTCTAA 960

ATAAATGTAC TTTCTCTCTT AAAATCCCTC AACAAATCCC CACTATCTAG AGAATAAGAT 1020

TGACATTCCC TGGAGTCACA GCΑTGCTTTG TCTGCCATTA TCTGACCCCT TTCTCTTTCT 1080

CTCTTCTCAC CTCCATCTAC TCCTITTTCC TTGCAATACA TGACCCAGAT TCACTGTTTG 1140

ATTIGGCTTG CATGTGTGTG TGCTGAGTTG TGTCTCACTC TTGTCAACCC CATGAATGAC 1200

AGTCCACCAG GCTCCACTAT TTCCAGTTAA GAATACTGGA GTGGATTGTG TTTCCTACTT 1260

CΑTTTGATTA ATTTAGTGAC TΓTTTAAATT TITTTCCATA TTCAGGAGGC TATTCTTTCC 1320

TTTTAGTCTA TACTGTCTTC GCTCTTCAGG TCTAAGCTAT CATCATGTGC TTGTTAGCTT 1380

GTTTCTTTCT CCATTATAGC ATAAACACTA ACAACTATTC AGGTTAGCAT GAGATTGTGT 1440

TCTTTGTGTG GCCTGTGTAT TTCTGGTGTG TATTAGAATT TACCCCAAGA TCTCAAAGAC 1500

CCACCGAATA CTAAAGAGAC CTCATTGTAG TTACAATAAT TTGGGGACTG GGCCAAAACT 1560

TCCGTGTGTC CCAGCCAAGG TCTGTAGCTA CTGGACAATT TAATTTCCTT ΥATCAGAT G 1620

TGAATTATTC CCTTTAAAAT GCTCCCCAGA ATTTTTGGGG ACAGAAAAAT AGGAAGAATT 1680

CΆTTTTCTAA TCΆTGCAGAT TTCTAGGAAT TCAAATCCAC TATTGGTTTT ATTTCAAACC 1740

ACAAAATTAG CATSCCATTA AATACTATAT ATAAACAACC ACAAAATCAG ATCATTATCC 1800

ATTCAGCTCC TCCTTCACTT CTTGTCCTCT ACTTTGGAAA AAAGGTAAGA ATCTCAGATA 1860

TAATTTCATT GTATCTGCTA CTCATCTTTA TTTCAGACTA GGTTAAAATG TAGAAAGAAC 1920

ATAATTGCTT AAAATAGATC TTAAAAATAA GGATGTTTAA GATAAAGTTT AO^TATTTT 1980

CAGCAAATTT GTTAAAAAAT AGAAGCAACT ATAAAGATTT GTAACAGTGG TTGCTATTTT 2040

CTTTACCACG AGACTAGTTA ACAGGCTGTA TTAAAAGATC TTITCTΓGAA TTAAATATTT 2100

TC ATTTGAT TAAACATACC TCAGCCATAA AGGCAAGCAC ATTTAATTTA TACTATGGGA 2160

ATTTGAATAA TTGTTACTGA AGAAGCTCTA CCAACAAAAA GTTTATAGAG CTAGCATATT 2220

TAGTCAAGAG ATAAAGAGGG TTGTTAGGAT ACATGTGCTA TTTGAAAGGT ATTTATAAAA 228

GAAGAGTATA TTTATTAAAA TTGCTCAGAA CATCCAAATT TCAAGTTTAT CATITATCTT 234

ACAATATTTC AAAAATATTA AAATAGATAC ATGAAATACA GAAGTAAATT AAAGAGAAAG 240

TATTTTATTT TGTAAAAAAA AATTCTAGGT TGGACAGGGA GTACCAGGAA ACAAAAAACA 246

ATGAAAAATG TGATCTGACA GAAATTATAG CTCAAAGTAT AGTAGTCAGT AATGAAATGG 252

CTTAAAAATT GGCATATAAA ATGCTAATTA TAAAATAAAC AAAATGTAAT AATACCCTCC 258

CTACATGTAA TGAACTCTGA GTATTATACT CTTTTTTGAA GTCTTGACAA TGAAAATTTA 264 TTTAC4ACTTT TATAGACATC TTGGATAAAG TAAAACAAAT TACGAATTAG CATCαYTGAG 2700

AAAAATATAG AAAAATTTCT TAATGTAGTT TGCAAATCTS GGCΑTTGAAG ATGTGTGTCA 2760

AGAGATTGTG ATGGCAGACA TITITITTCA GACTATAAAA TGCACAAACA ACCATTTAAT 2820

ACATTTTGGT CAAAAATAGT ATGTATTTTA TTTTATGCTA CAGGAGAGTA GTCTAAAGTA 2880

GGACTGGGCA GAGATCTGAC ACCCTGGTAA TCACCGAGAG ATAGTACACA GTCTCTGTAG 2940

AGAAAATAAG CATAGTGTAT GATCTCTAAA ATTATGTGGA CIAAAGGGGAG ATAACATTAG 3000

GCATGTGGGG ATGAAGACTG AGTACAGAAG AACAATCTAG TCAGTCCAAG AAAACATGTG 3060

GATCAATGGA ACAAATAGAA GAAATGCTAA AATGAAACAG AAGTCTTACT GGAAATAAAA 3120

GATATGAGGA AGACAAACAT TCATGAAAAT CACTTAGTTT AGTAGAGAAA AGATAAAAAT 3180

AAAGTATTAC CTTCTTCTTC ATATACATTG TITGATCAGA TGCCCCTCAA TAAAACTGAG 3240

TCTCCAACAG AACTGAAACT TTAATATTTT GTTCACTGCT CTAATCCCAG AATCTAAGAC 3300

ATATCTGGCA ATAAAAATTA ATAAATAAAT ATTTTTAATA AGTAAATCAA TCACTTAATT 3360

TTTCTGTAAG TATCTGTAAC TTC CTTCTG TCTTTCCAAA AAACACTCAT AAGTACTGTG 3420

AATAAGATGA AAAGAGTGAA ATAAGATATA GGCTGTTAGC TGAAAACATC TGGATGGCTG 3480

GCAGTGAAAC ATTAACTTGA AATGTAAGAT TAATGAGTAA TAGTAAATTT TAACCTTGGC 3540

CGTATGATAA AATGTCTATT AATATTTTTC TAAAATACAG GGCTTTTTGT TITTGCCATG 3600

AGGTTTGCAG GATCTTGGTT CCCTGATGAG GGATCAAACC TGGGCTCCCC TGGAAGCACG 3660

GAGTCTTAGA TAT ΓGTATT ATACACTATC TTTGGTTTCT TTTAAAGGGA AGTAATTCTA 3720

CTTAAATAAG AAAATAGATT GACAAGTAAT ACACTATTTC CTCATCTTCC CATTCCCAGG 3780

AATTGAGAGC CATGAAGGTC CTCATCCTTG CCIGCCTGGT GGCTCTGGCC CTIGCAAGAG 3840

AGGTAAATAC AGAAAAAATG TTGAAATAAA TAAGACTAGT ACTATCTGCT ATGTGTAGAA 3900

AATTCATTAC CAACATTGTA AATGTATAAA TAATGCACAA TCTCAGATTT TTTTTGAATG 3960

CTAAGAAAGT CATTTACGTT CATCCACTAT CTCAGTAGTA TCCTATGGGA CCACAAGTCT 4020

GAGTCTAGTG CTTTCTATAG TATTGTACCA TCTGTACCAT CAATCCCTAA AGAAAAAAGA 408

AAATAAACCA ATAAGCAACA GACTAACAAG AAGGAACACA GATAAGAACA AAAAGTGAGT 414

AATATTGCAT AAATACAATT GCATGCATAT ACAATCTAGA TAAATATATC TTATTCCAGT 420

GATGAAATAT TTGTATCCCT TACTGTAGAG TGCTAGGTTT AGCTGTGTCT ATTCAACACA 426

GGATGATACT CCAGAGGATG GTATATCAGA CAACAATAAT AAATATGTTC ATAATTATAA 432

TAAAAAGTGT TCAGTAAAAA TTAAAATAAC TCCTTTTCTG TTACCCATAA AAACTCTTCA 438 TTAAAGTAAA ACAAAAATAT ACTAATGAAA GTTACTAAAT TTAAAAGACT CTCAAAAGAC 4440

ATATAACATT TTTATTTTTC AGATTTGTGA AATAGATAGC TCTGAATAAA GCAAGTAAAA 4500

ATTAGGTAGG AAAATATTTA ATAATGAGTT GACTGTSGGA ACTAAAGTGT TITITITTCT 4560

CITTAGCTSG AAGAACTCAA TGTACCGGTC GCCACCATGG GTAAAGGAGA AGAACTTTTC 4620

ACTGGAGTTG TCCCAATTCT TGTTGAATTA GATGGTSATG TTAATGGGCA C-AAATITTCT 4680

GTCAGTGGAG AGGGTSAAGG TGATGCAACA TACGGAAAAC TTACCCTTAA ATITATTTGC 4740

ACTACTGGAA AACTACCTGT TCCATGGCCA ACΑCTTGTCA CTACTTTCTC TTATGGTGTT 4800

CAAT CI'ITΓ CAAGATACCC AGATCATATG AAACGGCATG ACTTTTTCAA GAGTGCCATG 4860

CCCGAAGGTT ATGTACAGGA AAGAACTATA TTTTTCAAAG ATGACGGGAA CTACAAGACA 4920

∞TGCTGAAG TCAAGTTTGA AGGTGATACC CTTGTTAATA GAATCGAGTT AAAAGGTATT 4980

GATTTTAAAG AAGATGGAAA CATTCTTGGA CACAAATTGG AATACAACTA TAACTCACAC 5040

AATGTATACA TCATGGCAGA CAAACAAAAG AATGGAATCA AAGTTAACTT CAAAATTAGA 5100

CACAACATTG AAGATGGAAG CGTTCAACTA GCAGACCATT ATCAACAAAA TACTCCAATT 5160

GGCGATGGCC CTGTCCTTTT ACCAGACAAC CATTACCTGT CCACACAATC TGCCCTTTCG 5220

AAAGATCCCA ACGAAAAGAG AGACCACATG GTCCTTCTTG AGTTTGTAAC AGCTGCTGGG 5280

ATTACACATG GCATGGATGA ACTATACAAG TCCXSGACTCA GATCTACCAT GCCGCGCTGG 5340

∞TCTGTTCC GCCGTATCGA CCGTGTTGGC AAACAGATCA AACAGGGTAT CCTSCGTGCT 5400

GGCCCGGCTA TCXXTCTGGT TGGCGACGCC CXlϋGCAGTTG GTTGAGAATT CTGCAGTCGA 5460

CGGTGGATCT AGATAACTGA TCATAATCAG CCATACCACA TTTGTAGAGG TTITACTTGC 5520

TTTAAAAAAC CTCCCACACC TCCCCCTGAA CCTGAAACAT AAAATGAATG CAATTGTTGT 5580

TGTTAACTTG TTTATTGCAG CTTATAATGG TTACAAATAA AGCAATAGCA TCACAAATTT 5640

CACAAATAAA GCATlTl l'l' CΑCTGCATTC TAGTTGTGGT TTGTCCAAAC TCATCAATGT 5700

ATCTTAACGC GTAAATTGTA AGCGTTAATA TTTTGTTAAA ATTCGCGTTA AATITTTGTT 5760

AAATCAGCTC ATTTTTTAAC CAATAGGCCG AAATCGGCAA AATCCCTTAT AAATCAAAAG 5820

AATAGACCGA GATAGGGTTG AGTGTTGTTC CAGTTTGGAA CAAGAGTCCA CTATTAAAGA 5880

ACGTSGACTC CAACGTCAAA GGGCGAAAAA CCGTCTATCA GGGCGATGGC CCACTACGTG 5940

AACCATCACC CTAATCAAGT TTTTTGGGGT CGAGGTGCCG TAAAGCACTA AATCGGAACC 6000

CTAAAGGGAG CCCCCGATTT AGAGCTTGAC GGGGAAAGCC GGCGAACGTG GCGAGAAAGG 6060

AAGGGAAGAA AGCGAAAGGA GCGGGCGCTA GGGCGCTGGC AAGTGTAGCG GTCACGCTGC 612 GCGTAACCAC CACACCCGCC GCGCTTAATG CGCCGCTACA GGGCGCGTCA GGTGGCACTT 6180

TTCGGGGAAA TGTGCGCGGA ACCCCTATTT GTTTATTTTT CTAAATACAT TCAAATATGT 6240

ATCCGCTCAT GAGACAATAA CCCTGATAAA TGCTTCAATA ATATTGAAAA AGGAAGAGTC 6300

CIGAGGCGGA AAGAACCAGC TGTGGAATGT GTGTCAGTTA GGGTGTGGAA AGTCCCCAGG 6360

CTCCCCAGCA GGCAGAAGTA TGCAAAGCAT GCATCTCAAT TAGTCAGCAA CCAGGTGTGG 6420

AAAGTCCCCA GGCTCCCCAG CAGGCAGAAG TATGCAAAGC ATGCATCTCA ATTAGTCAGC 6480

AACCATAGTC CCGCCCCTAA CTCCGCCCAT CCCGCCCCTA ACTCCGCCCA GTTCCGCCCA 6540

TTCTCCGCCC CΆTGGCTGAC TAATTTITTT TATTTATGCA GAGGCCGAGG

6600

CTCTGAGCTA TTCCAGAAGT AGTGAGGAGG CTTITTTGGA GGCCTAGGCT TTTGCAAAGA 6660

TCGATCAAGA GACAGGATGA GGATCGTTTC GCATGATTGA ACAAGATGGA TTGCACGCAG 6720

GTTCTCCGGC CXKTTGGGTG GAGAGGCTAT TCGGCTATGA CTGGGCACAA CAGACAATCG 678

GCTCCTCTGA TGCCGCCGTG TTC03GCTGT CAGCGCAGGG GCGCCCGGTT CTTTTTGTCA 684

AGACCGACCT GTCCGGTGCC CTGAATGAAC TGCAAGACGA GGCAGCGCGG CTATCGTGGC 690

TGGCCACGAC GGGCGTTCCT TGOXAGCTG TGCTCGACGT TGTCACTGAA GCGGGAAGGG 696

ACTC^CTGCT ATTGGGCGAA GTGCCGGGGC AGGATCTCCT GTCATCTCAC ( ITGCTCCTG 702

CCGAGAAAGT ATCCATCATG GCTGATGCAA TGOSGCGGCT CCΑTACGCTT GATCGGGCTA 708

CCTGCCCATT CGACCACCAA GCGAAACATC GCATCGAGCG AGCACGTACT CGGATGGAAG 714

CCGGTCTTGT CGATCAGGAT GATCTGGACG AAGAGCATCA GGGGCTCGCG CCAGCCGAAC 720

TGTTCGCCAG GCTCAAGGCG AGCATGCCCG ACGGCGAGGA TCTCGTCGTG ACCCATGGCG 726

ATGCCTGCTT GCCGAATATC ATGGTGGAAA ATGGCCGCTT TTCTGGATTC ATCGACTGTG 732

GCOΞGCTGGG TGTGGCGGAC CGCTATCAGG ACATAGCGTT GGCTACCCGT GATATTGCTG 738

AAGAGCTTGG CGGCGAATSG GCTGACCGCT TCCTCGTGCT TTACGGTATC GCCGCTCCCG 744

ATTCGCAGCG CATCGCCTTC TATCGCCTTC TTGACGAGTT CTTCTGAGCG GGACTCTGGG 750

GTTCGAAATG ACCGACCAAG CGACGCCCAA CCTGCCATCA GGAGATTTCG ATTCCACCGC 756

OGCCTTCTAT GAAAGGTTGG GCTTCGGAAT CGTTTTCCGG GACGCCGGCT GGATGATCCT 762

CCAGCGCGGG GATCTCATGC TGGAGTTCTT CGCCCACCCT AGGGGGAGGC TAACTGAAAC 768

ACX3GAAGGAG ACAATACCGG AAGGAACCCG CGCTATGACG GCAATAAAAA GACAGAATAA 774

AACGCACGGT GTTGGGTCGT TTGTTCATAA ACGCGGGGTT CGGTCCCAGG GCTGGCACTC 780

TGTCGATACC CCACCGAGAC CCCATTGGGG CCAATACGCC CGCGITIUIT CCTTTTCCCC 786 ACCCCACCCC CCAAGTTCGG GTGAAGGCCC AGGGCTCGCA GCCAACGTCG GGGCGGCAGG 7920

CCCTGCCATA GCCTCAGGTT ACTCATATAT ACTTTAGATT GATTTAAAAC TTCATTTTTA 7980

ATTTAAAAGG ATCTAGGTGA AGATCCTTTT TGATAATCTC ATGACCAAAA TCCCTTAACG 8040

TGAGTTTTCG TTCCACTGAG CGTCAGACCC CGTAGAAAAG ATCAAAGGAT CTTCTTGAGA 8100

TCCTTTTTTT CTGCGCGTAA T IGCTGCTT GCAAACAAAA AAACCACCGC TACCAGCGGT 8160

GGTTTGTTTG CCGGATCAAG AGCTACCAAC TCTITTTCCG AAGGTAACTG GCTTCAGCAG 8220

AGCGCAGATA CCAAATACTG TCCTTCTAGT GTAGCCGTAG TTAGGCCACC ACTTCAAGAA 8280

CTCTGTAGCA CCGCCTACAT ACCT∞CTCT GCTAATCCTG TTACCAGTGG CTCCTGCCAG 8340

TGGCGATAAG TOSTGTCTTA C SGGTTGGA CTCAAGACGA TAGTTACCGG ATAAGGCGCA 8400

GCGGTCGGGC TSAACGGGGG GTTCGTGCAC ACAGCCCAGC TTGGAGCGAA CGACCTACAC 8460

CGAACTGAGA TACCTACAGC GTGAGCTATG AGAAAGCGCC ACXXTTCCCG AAGGGAGAAA 8520

GGCGGACAGG TATCCGGTAA GCGGCAGGGT CGGAACAGGA GAGCGCACGA GGGAGCTTCC 8580

AGGGGGAAAC GCCTSGTATC TTTATAGTCC TGTCGGGTTT CGCCACCTCT GACTTGAGCG 8640

TCGATTTTTG TGATGCTCGT CAGGGGGGCG GAGCCTATGG AAAAACGCCA GCAACGCGGC 8700

CTTTTTAOGG TTCCTGGCCT TTTGCTGGCC TTΓTGCTCAC ATGTTCTTTC CTGCGTTATC 8760

CCCTGATTCT GTGGATAACC GTATTACCGC CATGCAT 8797 (2 ) INFORMATION FOR SEQ ID NO : 7 :

(i) SEQUENCE CHARACTERISTICS :

(A) LENGTH: 22 base pairs

(B) TYPE : nucleic acid

(C) STRANDEDNESS : single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Upstream primer for Bos taurus beta casein 5' promoter segment including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:7: GGTGAGAGAC GTCATTAGGA AA 22

(2) INFORMATION FOR SEQ ID NO:8:

(i) SEQUENCE CHARACTERISTICS: (A) LENGTH: 26 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Downstream primer for Bos taurus beta casein 5' regulatory region including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:8: TTACCTCACC GGTACTACAT TGAGTT 2

(2) INFORMATION FOR SEQ ID NO:9:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 31 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Upstream primer for Bos taurus beta casein 3' regulatory segment including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:9: CCAGGATGGG TACCAGGATA AAATCCACCC C 3

(2) INFORMATION FOR SEQ ID NO:10:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 34 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Downstream primer for Bos taurus beta casein 3' regulatory region including restriction site linker"

(iii) HYPOTHETICAL: YES (xi) SEQUENCE DESCRIPTION: SEQ ID NO:10: GGGAATTGGA TCCAATTTTA ATTTTCCACA GCTC 34

(2) INFORMATION FOR SEQ ID NO:11:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 40 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Upstream primer for Bos taurus alpha-SI-casein 5' promoter region including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:11: GGCCGACGTC CCAACCCAGA TGGGCATGAA AAAGGAGAGA 40

(2) INFORMATION FOR SEQ ID NO:12:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 39 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Downstream primer for Bos taurus alpha-SI-casein 5' regulatory region including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:12: GGCCGCTAGC AGCAACAGCC ACAAGACAGG TAAGGAT A 39

(2) INFORMATION FOR SEQ ID NO:13:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 40 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Upstream primer for Bos taurus alpha-SI-casein 3' regulatory region including restriction site linker" (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:13: GGCCGTCGAC CTGAGGGACT CCACAGTTAT GGTCTTTGGT 4

(2) INFORMATION FOR SEQ ID NO:14:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 40 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Downstream primer for Bos taurus alpha SI casein 3' regulatory region including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:14: GGCCGGGCCC GGGATTGCAT T3AATCTATA ATTGCITTGG 4

(2) INFORMATION FOR SEQ ID NO:15:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 40 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Upstream primer for Capra hircus beta lactoglobulin 5' regulatory region including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:15: GGCCGCTAGC CCAACCCAGA TGGGCATGAA AAAGGAGAGA 4

(2) INFORMATION FOR SEQ ID NO:16:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 38 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant (ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Downstream primer for Capra hircus beta lactoglobulm 5' promoter region including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:16: GGCCACCGGT GCAACAGCCA CAAGACAGGT AAGGATGA 38

(2) INFORMATION FOR SEQ ID NO:17:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 40 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Upstream primer for Capra hircus beta lactoglobulm 3' regulatory region including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:17: GGCCGTCGAC GGCCTGGAGA AATTCGACAA ACCCCTCAAG 40

(2) INFORMATION FOR SEQ ID NO:18:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 40 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Downstream primer for Capra hircus beta lactoglobulm 3' regulatory region including restriction site linker"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:18: GGCCGGATTC TCCACCCAAA CCCATGTCCA TTGTGTCAGT 40 (2) INFORMATION FOR SEQ ID NO:19:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 23 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS: not relevant

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES (iv) ANTI-SENSE: NO

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:19:

Phe Ala Leu Ala Leu Lys Ala Leu Lys Lys Ala Leu Lys Lys Leu Lys 1 5 10 15

Lys Ala Leu Lys Lys Ala Leu 20

(2) INFORMATION FOR SEQ ID NO:20:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 31 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS: not relevant

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES (iv) ANTI-SENSE: NO

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:20:

Phe Ala Lys Leu Ala Leu Ala Lys Leu Ala Leu Ala Leu Lys Ala Leu 1 5 10 15

Lys Lys Ala Leu Lys Lys Leu Lys Lys Ala Leu Lys Lys Ala Leu 20 25 30

(2) INFORMATION FOR SEQ ID NO:21:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 38 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS: not relevant (D) TOPOLOGY: not relevant (ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:21:

Phe Ala Leu Ala Lys Leu Ala Leu Ala Lys Leu Ala Leu Ala Lys Leu 1 5 10 15

Ala Leu Ala Leu Lys Ala Leu Lys Lys Ala Leu Lys Lys Leu Lys Lys 20 25 30

Ala Leu Lys Lys Ala Leu 35

(2) INFORMATION FOR SEQ ID NO:22:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 38 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS: not relevant

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:22:

Met Pro Arg Trp Arg Leu Phe Arg Arg lie Asp Arg Val Gly Lys Gin 1 5 10 15

lie Lys Gin Gly lie Leu Arg Ala Gly Pro Ala lie Ala Leu Val Gly 20 25 30

Asp Ala Arg Ala Leu Gly 35

(2) INFORMATION FOR SEQ ID NO:23:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 38 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS:

(D) TOPOLOGY: not relevant (ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:23:

Leu Ala Lys Lys Leu Ala Lys Lys Leu Lys Lys Leu Ala Lys Lys Leu 1 5 10 15

Ala Lys Leu Ala Leu Ala Leu Lys Ala Leu Ala Leu Lys Ala Leu Ala 20 25 30

Leu Lys Ala Leu Ala Leu 35

(2) INFORMATION FOR SEQ ID NO:24:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 38 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS:

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:24:

Met Pro Lys Trp Lys Val Phe Lys Lys lie Glu Lys Val Gly Arg Asn 1 5 10 15

He Arg Asn Gly He Val Lys Ala Gly Pro Ala He Ala Val Leu Gly 20 25 30

Glu Ala Lys Ala Leu Gly 35

(2) INFORMATION FOR SEQ ID NO:25:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 30 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS:

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES (xi) SEQUENCE DESCRIPTION: SEQ ID NO:25:

Met Lys Arg Met Val Ser Trp Ser Phe His Lys Leu Lys Thr Met Lys 1 5 10 15

His Leu Leu Leu Leu Leu Leu Cys Val Phe Leu Val Lys Ser 20 25 30

(2) INFORMATION FOR SEQ ID NO:26:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 31 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS:

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:26:

Leu Ala Lys Lys Leu Ala Lys Lys Leu Lys Lys Leu Ala Lys Lys Leu 1 5 10 15

Ala Lys Leu Ala Leu Ala Leu Lys Ala Leu Ala Leu Lys Ala Leu 20 25 30

(2) INFORMATION FOR SEQ ID NO:27:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 23 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS:

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:27:

Phe Leu Lys Lys Leu Ala Lys Lys Leu Lys Lys Leu Ala Lys Lys Leu 1 5 10 15

Ala Lys Leu Ala Lys Lys Leu 20 (2) INFORMATION FOR SEQ ID NO:28:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 23 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS:

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:28:

Leu Ala Lys Lys Leu Ala Lys Lys Leu Lys Lys Leu Ala Lys Lys Leu 1 5 10 15

Ala Lys Leu Ala Lys Lys Leu 20

(2) INFORMATION FOR SEQ ID NO:29:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 31 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS:

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:29:

Leu Ala Lys Leu Ala Leu Ala Lys Leu Ala Leu Ala Leu Lys Ala Leu 1 5 10 15

Lys Lys Ala Leu Lys Lys Leu Lys Lys Ala Leu Lys Lys Ala Leu 20 25 30

(2) INFORMATION FOR SEQ ID NO:30:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 30 amino acids

(B) TYPE: amino acid

(C) STRANDEDNESS:

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: peptide (iii) HYPOTHETICAL: YES (xi) SEQUENCE DESCRIPTION: SEQ ID NO:30:

Met Lys Arg Met Val Ser Trp Ser Phe Lys Lys Leu Lys Thr Met Lys 1 5 10 15

Lys Leu Leu Leu Leu Leu Leu Cys Val Phe Leu Val Lys Ser 20 25 30

(2) INFORMATION FOR SEQ ID NO:31:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 20 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: not relevant

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Primer for Bos taurus beta casein 5' flanking segment"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:31: GCCTTTATGG CTGAGGTATG 20

(2) INFORMATION FOR SEQ ID NO:32:

(i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 21 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: not relevant

(D) TOPOLOGY: not relevant

(ii) MOLECULE TYPE: other nucleic acid

(A) DESCRIPTION: /desc = "Primer for Bos taurus beta casein 5' flanking region"

(iii) HYPOTHETICAL: YES

(xi) SEQUENCE DESCRIPTION: SEQ ID NO:32: CATCTATCTG TCCCAAAGCT G 21

Claims

THE CLAIMS What is claimed is:

1. A DNA cassette constructed to express an amphipathic peptidein a mammalian cell, comprising: a first segment encoding an amphipathic peptide; and a promoter segment linked upstream to regulate the expression of said first segment, said promoter segment being a mammalian-specific promoter normally regulating expression of an endogeneous mammalian gene, and said mammalian-specific promoter requiring a tissue-specific signal to induce expression of said endogeneous gene.

2. The cassette of Claim 1, wherein said promoter segment encodes a 5' promoter region which normally cis- regulates expression of a native milk-specific protein- encoding gene.

3. The cassette of Claim 2, which further includes a 3' regulatory segment located downstream of said first segment, said 3' regulatory segment derived from a 3' regulatory region of a native milk-specific protein gene.

4. The cassette of Claim 2, wherein said milk- specific protein encoding gene encodes a protein selected from the group consisting of: alpha-Sl-casein, alpha-S2- casein, beta casein, kappa casein, beta lactoglobulin, and alpha lactalbumin.

5. The cassette of Claim 2, wherein said protein- encoding gene encodes beta casein, alpha-Sl-casein, or beta lactoglobulin.

6. The cassette of Claim 2, wherein said amphipathic peptide encoding gene encodes an amphipathic peptide selected from the group consisting of: Shiva-1, Shiva-2, Shiva-6, Shiva-7, Shiva-9, Hecate-l, Hecate-2, Hecate-3, SB-37, AP-7, Flak-1, and Manitou-1.

7. The cassette of Claim 2, which further includes a plurality of amphipathic peptide encoding genes adjacently linked in reading frame to each other and to said first segment.

8. The cassette of Claim 2, wherein said 5' promoter region is positioned adjacent and in reading frame to control transcription of said first segment.

9. The cassette of Claim 2, further including a fusion peptide-encoding segment located adjacent said first segment for transcription and translation therewith to form a fusion product, said fusion peptide-encoding segment encoding a peptide which renders said fusion product non-toxic.

10. The cassette of Claim 9, wherein said fusion peptide-encoding segment encodes a peptide selected from the group consisting of: a chain of six or more histidine residues; green fluorescent protein; streptavidin tag peptide; beta galactosidase; trpE; beta casein; alpha-Sl- casein; alpha-S2-casein; beta-lactoglobulin; kappa-casein; alpha-lactalbumin.

11. The cassette of Claim 2, which has the sequence of nucleotides nos. 127-4586 of SEQ ID Nos. 5 or 6 in upstream reading frame relationship to a sequence encoding an amphipathic peptide.

12. The cassette of Claim 2, which has the sequence of SEQ ID Nos. 5 or 6.

13. The cassette of Claim 2, further including a marker segment encoding a selectable marker operably linked downstream of said first segment.

14. The cassette of Claim 1, wherein said regulatory segment has a sequence substantially similar to a noncoding sequence normally found adjacent and operably linked to control expression of a gene which codes on expression for an interleukin protein.

15. The cassette of Claim 14, wherein said regulatory segment has a sequence substantially similar to a noncoding sequence normally found adjacent and operably linked to control expression of a gene which codes on expression for a protein selected from the group consisting of: interleukin-2 and interleukin-12.

16. The cassette of Claim 14, wherein said amphipathic peptide is selected from the group consisting of: SB-37, cecropin B, Shiva-1, Shiva-2, Shiva-3, Shiva-4, Shiva-5, Shiva-6, Shiva-7, Shiva-8, Shiva-9, and Shiva-10, melittin, Anubis-1, -2, or -3, Hecate-1, -2, or -3, Manitou-1, Flak-1, or Ap-1.

17. A transgenic mammalian organism, having a stably integrated DNA cassette constructed to express an amphipathic peptide in a mammalian cell, the cassette comprising: a first segment encoding an amphipathic peptide; and a promoter segment linked upstream to regulate the expression of said first segment, said promoter segment being a mammalian-specific promoter normally regulating expression of an endogeneous mammalian gene, and said mammalian-specific promoter requiring a tissue-specific signal to induce expression of said endogeneous gene.

18. The organism of Claim 17, wherein in said cassette, said promoter segment encodes a 5' promoter region which normally cis-regulates expression of a native milk-specific protein-encoding gene.

19. The organism of Claim 18, wherein said cassette further includes a 3' regulatory segment located adjacently downstream of said first segment, said 3' regulatory segment derived from a 3' regulatory region of a native milk-specific protein gene.

20. The organism of Claim 18, wherein in said cassette, said milk-specific protein encoding gene encodes a protein selected from the group consisting of: alpha-Sl- casein, alpha-S2-casein, beta casein, kappa casein, beta lactoglobulin, and alpha lactalbumin.

21. The organism of Claim 18, wherein in said cassette, said protein-encoding gene encodes beta casein, alpha-Sl-casein, or beta lactoglobulin.

22. The organism of Claim 21, wherein in said cassette, said protein-encoding gene encodes beta casein.

23. The organism of Claim 18, wherein in said cassette, said amphipathic peptide encoding gene encodes an amphipathic peptide selected from the group consisting of: Shiva-1, Shiva-2, Shiva-6, Shiva-7, Shiva-9, Hecate-1, Hecate-2, Hecate-3, SB-37, AP-7, Flak-1, and Manitou-1.

24. The organism of Claim 18, wherein said cassette further includes a plurality of amphipathic peptide encoding genes adjacently linked in reading frame to each other and to said first segment.

25. The organism of Claim 18, wherein said cassette has said 5' promoter region positioned adjacent and in reading frame to control transcription of said first segment.

26. The organism of Claim 18, wherein said cassette further includes a fusion peptide-encoding segment located adjacent said first segment for transcription and translation therewith to form a fusion product, said fusion peptide-encoding segment encoding a peptide which renders said fusion product non-toxic.

27. The organism of Claim 26, wherein said fusion peptide-encoding segment encodes a peptide selected from the group consisting of: a chain of six or more histidine residues; green fluorescent protein; streptavidin tag peptide; beta galactosidase; trpE; beta casein; alpha-Sl- casein; alpha-S2-casein; beta-lactoglobulin; kappa-casein; alpha-lactalbumin.

28. The organism of Claim 18, wherein said cassette has the sequence of nucleotides nos. 127-4586 of SEQ ID Nos. 5 or 6 in regulatory reading frame relationship to a sequence encoding an amphipathic peptide.

29. The organism of Claim 18, wherein said cassette has the sequence of SEQ ID Nos. 5 or 6.

30. The organism of Claim 18 which is a tissue culture cell.

31. The organism of Claim 18 which is an embryonic stem cell.

32. The organism of Claim 18 which is a multicellular animal capable of transmitting said gene segment to its offspring.

33. The organism of Claim 18, which is produced by co-transfection of said cassette with one or more additional cassette(s) each comprising an amphipathic peptide encoding gene placed under the regulatory control of a 5' promoter region which normally cis-regulates expression of a native milk-specific protein encoding gene.

34. The organism of Claim 17, wherein in said cassette, said regulatory segment has a sequence substantially similar to a noncoding sequence normally found adjacent and operably linked to control expression of a gene which codes on expression for a protein selected from the group consisting of: interleukin-2 and interleukin-12.

35. The organism of Claim 34, wherein in said cassette, said amphipathic peptide is selected from the group consisting of: SB-37, cecropin B, Shiva-1, Shiva-2, Shiva-3, Shiva-4, Shiva-5, Shiva-6, Shiva-7, Shiva-8, Shiva-9, and Shiva-10.

36. A method of producing an amphipathic peptide, comprising the steps of: providing a cassette comprising a first segment encoding an amphipathic peptide; and a promoter segment linked upstream to regulate expression of said first segment, said promoter segment encoding a 5' promoter region which normally cis-regulates expression of a native milk-specific protein-encoding gene; stably integrating said cassette into the genome of a milk-producing mammalian organism; collecting protein material secreted by said mammalian organism; and purifying said amphipathic peptide from said collected protein material .

37. The method of Claim 36, wherein the mammalian organism is a cell line capable of producing the milk- specific protein under the control of the 5' promoter region, and further including a step of treating the cells having the stably integrated cassette with lactogenic hormones to activate expression from the 5' promoter region.

38. The method of Claim 36, wherein the mammalian organism is a multicellular animal producing milk, and wherein said secreted protein material is milk.

39. The method of Claim 36, wherein said cassette further includes a 3' regulatory segment located downstream of said first segment, said 3' regulatory segment derived from a 3' regulatory region of a native milk-specific protein gene.

40. The method of Claim 36, wherein a plurality of said cassettes are co-integrated into the organism.

41. The method of Claim 36, wherein the milk- specific protein encoding gene encodes a protein selected from the group consisting of: alpha-Sl-casein, alpha-S2- casein, beta casein, kappa casein, beta lactoglobulin, and alpha lactalbumin.

42. The method of Claim 36, wherein the amphipathic peptide encoding gene encodes an amphipathic peptide selected from the group consisting of: Shiva-1, Shiva-2, Shiva-6, Shiva-7, Shiva-9, Hecate-1, Hecate-2, Hecate-3, SB-37, AP-7, Flak-1, and Manitou-1.

43. The method of Claim 36, wherein said cassette has said 5' promoter region positioned adjacent and in reading frame to control transcription of said first segment.

44. The method of Claim 36, wherein the cassette further includes a fusion peptide-encoding segment located adjacent said first segment for transcription and translation therewith to form a fusion product, said fusion peptide-encoding segment encoding a peptide which renders said fusion product non-toxic.

45. The method of Claim 44, wherein the fusion peptide-encoding segment encodes a peptide selected from the group consisting of: a chain of six or more histidine residues; green fluorescent protein; streptavidin tag peptide; beta galactosidase; trpE; beta casein; alpha-Sl- casein; alpha-S2-casein; beta-lactoglobulin; kappa-casein; alpha-lactalbumin.

46. A transgenic mammalian animal having milk- producing tissue, having a DNA cassette stably genomically integrated into said milk-producing tissue, said cassette comprising: a first segment encoding an amphipathic peptide; and a promoter segment linked upstream in regulatory relationship to said first segment, said promoter segment encoding a 5' promoter region which normally cis-regulates expression of a native milk-specific protein-encoding gene.

47. The organism of Claim 46, wherein said cassette further includes a 3 ' regulatory segment located downstream of said first segment, said 3' regulatory segment derived from a 3' promoter region of a native milk-specific protein gene.

48. The organism of Claim 46, wherein said cassette further includes a plurality of amphipathic peptide encoding genes adjacently linked in reading frame to each other and to said first segment.

49. The organism of Claim 46, wherein in said cassette, said milk-specific protein encoding gene encodes a protein selected from the group consisting of: alpha-Sl- casein, alpha-S2-casein, beta casein, kappa casein, beta lactoglobulin, and alpha lactalbumin.

50. A method of making a transgenic mammalian organism having a stably integrated DNA cassette constructed to express an amphipathic peptide in milk- producing tissues, comprising the steps of: providing a first cassette comprising a first segment encoding an amphipathic peptide; and a promoter segment linked upstream to said first segment, said promoter segment encoding a 5' promoter region which normally cis-regulates expression of a native milk-specific protein- encoding gene; and stably integrating said first cassette into the genome of a milk-producing mammalian organism.

51. The method of Claim 50, further including a step of providing one or more additional cassette(s) each comprising an amphipathic peptide encoding gene placed under the regulatory control of a 5' promoter region which normally cis-regulates expression of a native milk- specific protein encoding gene, and wherein said step of stably integrating comprises co-transfecting the mammalian organism with the first cassette and the additional cassette(s) .

52. The method of Claim 51, wherein the 5' promoter region(s) of said additional cassette(s) are derived from milk-specific protein encoding genes different than the milk-specific protein encoding gene of the first cassette.

53. The method of Claim 50, wherein in said cassette, said milk-specific protein encoding gene encodes a protein selected from the group consisting of: alpha-Sl- casein, alpha-S2-casein, beta casein, kappa casein, beta lactoglobulin, and alpha lactalbumin.