EP1263981A2 - Matrix-reaktor und verfahren zur herstellung von produkten in diesem reaktor - Google Patents
Matrix-reaktor und verfahren zur herstellung von produkten in diesem reaktorInfo
- Publication number
- EP1263981A2 EP1263981A2 EP01911745A EP01911745A EP1263981A2 EP 1263981 A2 EP1263981 A2 EP 1263981A2 EP 01911745 A EP01911745 A EP 01911745A EP 01911745 A EP01911745 A EP 01911745A EP 1263981 A2 EP1263981 A2 EP 1263981A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- reactor
- matrix
- reaction
- volume
- compartment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/43504—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
- C07K14/43595—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from coelenteratae, e.g. medusae
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0046—Sequential or parallel reactions, e.g. for the synthesis of polypeptides or polynucleotides; Apparatus and devices for combinatorial chemistry or for making molecular arrays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
- B01J2219/00279—Features relating to reactor vessels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00277—Apparatus
- B01J2219/00497—Features relating to the solid phase supports
- B01J2219/005—Beads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00274—Sequential or parallel reactions; Apparatus and devices for combinatorial chemistry or for making arrays; Chemical library technology
- B01J2219/00583—Features relative to the processes being carried out
- B01J2219/00596—Solid-phase processes
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- C—CHEMISTRY; METALLURGY
- C40—COMBINATORIAL TECHNOLOGY
- C40B—COMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES
- C40B60/00—Apparatus specially adapted for use in combinatorial chemistry or with libraries
- C40B60/14—Apparatus specially adapted for use in combinatorial chemistry or with libraries for creating libraries
Definitions
- the present invention relates to a matrix reactor for reactions in which low-molecular and high-molecular reactants are involved, the reactor space V R containing a matrix and comprising both the reaction compartment and the supply compartment, the matrix consisting of a porous material which accommodate low-molecular reactants can and excludes high molecular weight reactants and where the exclusion volume V 0 of the matrix is available as reaction compartment and the matrix volume V of Mat ⁇ x is available as supply compartment.
- the matrix reactor can be used for synthesis processes with the involvement of high molecular weight catalysts (eg en / vmkatalvsiere reactions), in particular for the coupled in vitro transcription / translation reaction for the production of proteins.
- Some, important components of translation are currently being introduced into the system via cell extracts, eg E. coh S30 lysate, reticulocyte lvsat or wheat germ lvsat.
- the yields of a coupled Transk ⁇ pt ⁇ on- / Translat ⁇ onsreakt ⁇ on are in the order of 1 mg / ml.
- a prerequisite for this is a continuous supply of substrates and energy components and the simultaneous separation or dilution of the final reaction products. This enables the reaction to be maintained for many hours.
- CECF continuous exchange cell-free
- CFCF continuous flow cell-free
- the rectors consist of membrane surfaces and several chambers and are therefore complex to manufacture.
- Reaction solution and supply solution must be constantly mixed (e.g. by stirring or pumping) to counteract gradients and undersupply.
- the problem with the reactors of the prior art arises that, in the case of a coupled in vitro transcript / translation reaction for the production of proteins, the lysates used are greatly diluted compared to the state in the E. coli cytosol.
- the reasons for this are 1. the digestion and preparation processes for obtaining the lysates and 2. the dilution, which is accompanied by the addition of all the necessary components.
- several ways have already been shown in the prior art with the aim of increasing the active concentration of lysates.
- the object of the present invention was to provide a reactor which is suitable for the coupled intro transcription / translation reaction for the production of proteins and which overcomes the disadvantages of the reactors of the prior art. Furthermore, methods are to be provided which are suitable for the in vitro transcription / translation reaction for the production of proteins and which do not have the disadvantages of the prior art. Furthermore, the method according to the invention is intended to counteract a dilution of the macromolecular components. In particular, a reactor and a method are to be provided which enable the in vitro transcription / translation reaction for the production of proteins on a large scale
- the invention relates to a reactor for reactions in which low-molecular and high-molecular reactants are involved and the reactor space contains a matrix and comprises both the reaction compartment and the supply compartment, wherein
- the matrix consists of a porous material in which low-molecular reactants can diffuse largely freely,
- the high molecular weight reactants cannot penetrate the matrix
- the low molecular weight reactants are distributed throughout the reactor space V R ,
- the exclusion volume V 0 of the matrix is available as a reaction compartment
- the reaction compartment and supply compartment can be present in one reactor space due to the matrix structure of the reactor space. This variant is preferred. However, it would also be conceivable for the reaction compartment and supply compartment to be present in a reaction space and for an additional supply reservoir to exist which is connected to the reactor space directly or via a semipermeable membrane.
- Porous materials are used as the matrix, which may be inorganic materials, such as aluminum oxide, and / or organic materials, such as gels.
- the matrix must be wettable or swellable in aqueous solution and possess molecular sieve properties. According to the invention, solutions which contain only 50% by volume of water are also referred to as aqueous solutions.
- the matrix consists of polymers, crosslinked polymers (eg dextran), copolymers (eg polyacrylamide) or inorganic "gels".
- a matrix is preferred which consists of particles with a particle size in the range from 0.1 to 1000 ⁇ m.
- the specific material density is generally less than 0.5 g / ml, but preferably less than 0.3 g / ml.
- the surface area of the matrix particles (calculated as spherical surface area) is preferably in the range from 0.004 to 40 m 2 / ml bed volume.
- the Mat ⁇ x is defined by an exclusion limit (exclusion molecular weight) for macromolecules.
- the exclusion limit can be in the range from 0.5 to 300 kDa. An exclusion limit between 2 and 300 kDa is preferred, and an exclusion limit between 10 and 100 kDA is particularly preferred.
- Appropriate materials are commercially available (eg Sephadex ", Pharmacia; Bio-Gel * ', BIO-RAD).
- a material with uniform or different particle sizes can be used. Mixtures of different materials can also be used.
- the matrix itself consists of one Inert material which itself does not participate in the reaction - not even as a catalyst - however, substances such as enzymes can be bound to this inert matrix if necessary.
- the reactor space is completely or partially filled with this porous material.
- a minimum filling of the reactor with the matrix is necessary.
- the effect according to the invention is no longer to be expected below 20 vol% (bed volume).
- the matrix fill is, for example, 19.9% vol.
- the reactor according to the invention is preferably at least about 20 vol% and particularly preferably at least about 30 vol% with the porous matrix Material filled.
- the variant in which the reactor is completely filled with porous matrix material is particularly preferred. A range of 80-100% vol is also extremely preferred.
- the matrix divides the reactor volume into at least two compartments. A space that can only be occupied by low-molecular components and a space in which both low-molecular and all high-molecular components are located.
- the resulting final concentrations for the reactants used are a first approximation of the size of the distribution spaces that they can reach.
- the entire reactor volume V R is taken up by the components whose molecular weight is substantially below the exclusion limit of the matrix. This applies to substrates, buffer substances, salts and low molecular weight inhibitors, activators and stabilizers. This also applies in particular to low molecular weight end products which can potentially inhibit the reaction (eg product inhibition) or whose enrichment changes the general reaction conditions (eg pH value) and thereby slow the reaction.
- the high molecular weight components cannot penetrate the matrix.
- the reaction and supply compartments are connected to each other via short diffusion distances and an extremely large exchange area.
- the volume ratio of reaction compartment V 0 to supply compartment V M depends on the nature, the size and the structural nature of the matrix and on the amount of matrix introduced.
- the ratio V R / V can be varied within a wide range.
- the reaction volume for a certain part of the macromolecules can be increased.
- the volume for ribosomes, DNA template and mRNA was kept small (molecular weight> 200 kDa), whereas the loading of the tRNAs by aminoacyl-tRNA synthases (molecular weight ⁇ 100 kDa) take place in an extended reaction space.
- conditions for partial reactions could be optimized.
- the structure of the porous matrix also allows a specific modification of the surface or lumen.
- Enzymatic functions such as modifying enzymes (restriction proteases) or an energy-regenerating enzyme system can be immobilized on separate particles in a certain ratio.
- Chemical modification of the lumen made it possible to specifically adsorb inhibitory substances.
- the construction principle of the matrix reactor allows simple high dimensioning from the laboratory to the production scale.
- commercially available chromatography columns can be used as reactors, which are available in sizes between 10 ml and 1000 liters.
- processes can be easily, quickly and inexpensively transferred to higher dimensions.
- the effort involved in planning, building and testing reactors and production facilities is reduced considerably.
- the reactor material can vary from stainless steel to plastic to glass. However, other materials can also be used.
- the reactor according to the invention differs from the previously available reactors
- the supply compartment corresponds to the matrix volume (V M ).
- the reaction compartment corresponds to the exclusion volume V 0 of the matrix.
- the exclusion limit of the matrix is in the range of 0.5-300 kDa, preferably 2 to 300 kDa.
- the reactor has an inlet (top) and outlet (bottom) for solutions. By supplying solution, a uniform flow of the liquid column is created in the direction of the discharge.
- the reactor can be thermostatted
- a matrix reactor in which the matrix is a gel matrix is therefore particularly preferred.
- a Mat ⁇ x reactor is preferred in which the reactor space has the shape of a cylinder.
- a preferred embodiment is thus a reactor in which the reactor is a thermostattable chromatography column filled with a gel matrix.
- the matrix have an exclusion limit in the range of 2-300 kDa.
- the reactor principle according to the invention can also be advantageously combined with established reactor types (batch, CECF, CFCF).
- an improvement in the yield can be achieved due to increased productivity.
- the principle according to the invention can also contribute to a cost reduction.
- the reactor consists of a closable reaction vessel.
- the reactor has a sufficient volume to accommodate the reaction solution and a variable amount of gel matrix.
- the reactor can be thermostatted (e.g. in a water bath) 3) CECF reactor with matrix
- the reactor is a CECF reactor consisting of at least two chambers, which are connected to one another via one or more semipermeable membrane (s).
- the reactor consists of at least one reaction chamber and at least one supply chamber
- the reaction chamber is partially or completely filled with a gel matrix.
- the reactor can be thermostatted (e.g. incubator).
- the reactor can be stirred or shaken if necessary.
- the CFCF reactor consists of at least one chamber with an inlet opening and at least one porous surface.
- This chamber is the reaction chamber and is partially or completely filled with matrix.
- Supply solution can be pumped into the reaction chamber via the opening.
- the used supply solution is pressed out of the reaction chamber via an ultrafiltration membrane.
- the reactor can be thermostatted (e.g. incubator).
- reaction solution can be agitated by stirring, shaking or pumping.
- the present invention furthermore relates to a process for the production of products in the reactor according to the invention, the starting materials being low and high molecular weight starting materials, characterized in that
- the low-molecular components of the reaction mixture, in particular the substrates consumed by the reaction, are distributed largely homogeneously in the entire reactor space V R ,
- the process according to the invention is preferably an enzymatic process, one or more substrates being used to convert one or more substrates to one or more products.
- the reactor can be used in particular for processes for coupled in vitro transcription / translation reactions for the production of proteins.
- the high molecular weight components are ribosomes, tRNA's, DNA matrix, RNA polymerase, mRNA and enzymes of the intermediate metabolism (eg aminoacyl tRNA synthetases, transformylase, pyrophosphatase, nucleotide kinases) and the energy regenerating system (eg acetate kinase, pyruvate kinase, glycine kinase, creatine kinase) Enzymes, enzymes of the citrate cycle) and regulatory proteins (eg initiation factors, elongation factors, termination factors) and factors that support protein folding and carry out protein modifications.
- enzymes of the intermediate metabolism eg aminoacyl tRNA synthetases, transformylase, pyrophosphatase, nucleotide kinases
- the energy regenerating system eg acetate kinase, pyruvate kinase, glycine kinase, creatine
- the low-molecular components include substrates (the 20 naturally occurring amino acids, ATP, GTP, CTP, UTP, a secondary energy substrate, such as acetylphosphate) and effectors (buffer substance, salts, reducing compounds, foic acid, inhibitors, stabilizers) defines that they are smaller than the exclusion limit of the matrix. Accordingly, high molecular weight compounds are larger than the exclusion limit.
- substrates the 20 naturally occurring amino acids, ATP, GTP, CTP, UTP
- a secondary energy substrate such as acetylphosphate
- effectors buffer substance, salts, reducing compounds, foic acid, inhibitors, stabilizers
- reaction solution with the product is removed from the column
- methods of the invention also include improvements in batch and continuous feed methods.
- CECF and CFCF processes The presence of gel matrix in the reaction space leads overall to a lower dilution of the high molecular weight reactants, which leads to increased productivity in relation to the use of lysate.
- the gel matrix equilibrated with the supply solution is installed in the reaction chamber of a CECF or CFCF reactor,
- the supply chamber is filled with supply solution
- the supply solution is continuously pumped into the reaction chamber
- the present invention also includes formulations for carrying out a coupled in vitro transcription / translation reaction for the production of proteins.
- These formulations are particularly suitable for the production of proteins in the matrix reactor according to the invention. All of the components required for the coupled in vitro transcript / translation reaction for the production of proteins are divided into two solutions, supply solution and reaction solution.
- the supply solution contains only low-molecular components such as buffers, salts, substrates and effectors. Suitable buffers and salts are, for example, Hepes or Tris, potassium ions, magnesium ions, ammonium ions.
- the required substrates are the 20 naturally occurring amino acids, the four ribonucleotides ATP, GTP, CTP, UTP and, respectively, corresponding metabolic precursors, e.g.
- AMP phosphoenolpyruvate
- creatine phosphate or acetyl phosphate or a corresponding one metabohic precursor of such substances.
- Effectors are substances that influence the reaction in a positive sense or suppress negative influences.
- reducing compounds include one or more reducing compounds, in particular compounds containing thiol groups, such as, for example, dithiothreitol, dithioerythrol, glutathione, mercaptoethanesulfonic acid, furthermore protein-stabilizing compounds, such as glycerol, sugar, diethylene glycol, polyethylene glycol, detergents, co-factors, and further activators such as co-enzymes and co-substrates of the intermediate metabolism such as foalic acid, NAD / NADH, NADP / NADPH or their precursors, further inhibitors for suppressing undesirable side reactions such as rifampicin, RNase inhibitors, protease inhibitors, azide.
- thiol groups such as, for example, dithiothreitol, dithioerythrol, glutathione, mercaptoethanesulfonic acid
- protein-stabilizing compounds such as glycerol, sugar, diethylene glycol, polyethylene glycol, detergents,
- the reaction solution contains the required high molecular weight components and can also contain some or all of the low molecular weight components of the supply solution.
- the basis of the reaction solution and source of many of the high molecular components is a cell lysate.
- This lysate can be obtained from prokaryotic (e.g. E. coli) or from eukaryotic cells (e.g. yeast, reticulocytes, wheat embryos).
- lysates are generally obtained by cell disruption and separation of the particulate fraction (e.g. by centrifugation). These processes are well known to the person skilled in the art from the literature. Lysates obtained in this way can be introduced directly into the reaction solution or initially further processed and / or fractionated (e.g. by dialysis, precipitates, differential centrifugation, chromatographic methods, concentration steps) and introduced in the form of several suitable fractions.
- High molecular components that are introduced by the lysate are ribosomes, transfer RNAs, regulatory proteins and enzymes.
- regulatory proteins initiation factors, elongation factors and termination factors of translation should be mentioned in particular.
- Aminoacyl-tRNA synthetases that can be mentioned as enzyme components are Enzyme systems for energy supply and conversion (e.g. acetate kinase, pyruvate kinase, cretin kinase, nucleoside diphosphate kinases, nucleoside monophosphate kinases, enzymes of glycolysis and citric acid cycle) and enzymes of the intermediate metabolism such as pyrophosphatase, transformylase, transamine.
- Enzyme systems for energy supply and conversion e.g. acetate kinase, pyruvate kinase, cretin kinase, nucleoside diphosphate kinases, nucleoside monophosphate kinases, enzymes of glyco
- RNAs DNA-attaching RNA polymerase
- a viral polymerase such as e.g. T7 RNA polymerase, T3 RNA polymerase, SP6 RNA polymerase.
- enzymes for the regeneration of the energy components and enzymes of the intermediate metabolism which are not or only insufficiently contained in the lysate (such as e.g. creatine kinase, pyruvate kinase, pyrophosphatase).
- high molecular inhibitors such as RNasin.
- enzyme systems that are required for the efficient and correct folding of proteins (e.g.
- chaperones protein disulfide isomerase, peptidyl-prolyl-cis-trans-isomerase). Furthermore, enzymes that are required for post-transcriptional changes to the protein. Furthermore, macromolecular components that stabilize proteins or keep them in solution.
- a circular (e.g. plasmid) or linear nucleic acid (e.g. PCR product) is added to the reaction solution as a template for the protein to be transcribed and translated.
- the code for the protein e.g. a cDNA sequence
- additional regulatory sequences that are required for system-compatible transcription and translation are located on this template. These include e.g. Promoter sequence, ribosome binding site, start codon, stop codon, polymerase termination sequence, translation enhancer.
- the template can also contain areas which are required for cloning, duplication or for mRNA stabilization.
- the supply solution has the following composition: 150-300 mM potassium acetate, 4-20 mM magnesium acetate, 1-10% glycerol, 0.5-2.5 mM ATP, 0.5-2.5 mM CTP, 0.5-2.5 mM GTP, 0.5-2.5 mM UTP, 0.1-2 mM per amino acid (all 20 naturally occurring amino acids), 10.8 ⁇ g / ml folic acid, 0.5- 5 mM EDTA, 100 mM HEPES-KOH pH 7.6 / 30 ° C, 1 ⁇ g / ml rifampicin, 0.03% sodium azide, 10-100 mM acetyl phosphate, 1-10 mM dithiothreitol, 1-10 mM mercaptoethanesulfonic acid, 70 mM KOH.
- the reaction solution has the following composition: 150-300 mM potassium acetate, 4-20 mM magnesium acetate, 1-10% glycerol, 0.5-2.5 mM ATP, 0.5-2.5 mM CTP, 0.5-2.5 mM GTP, 0.5-2.5 mM UTP, 0.1-2 mM per amino acid (all 20 naturally occurring amino acids), 10.8 ⁇ g / ml folic acid, 0.5- 5 mM EDTA, 100 mM HEPES-KOH pH 7.6 / 30 ° C, 1 ⁇ g / ml rifampicin, 0.03% sodium azide, 10-100 mM acetyl phosphate, 480 ⁇ g / ml tRNA from E.coli MRE600, 1 -10 mM dithiothreitol, 1-10 mM mercaptoethanesulfonic acid, 70 mM KOH, 0.1 U / ⁇ l RNase inhibitor
- the present invention thus also relates to the use of the reactors according to the invention for enzymatic reactions, in particular for coupled in vitro transcription / translation reactions for the production of proteins.
- V R reactor volume
- V M matrix volume
- V 0 exit volume
- the reactor and the method according to the invention are tested on the basis of cell-free protein synthesis using the example of green fluorescent protein (GFP) and chloramphenicol acetyltransferase (CAT).
- Cell-free protein synthesis is carried out in the form of a coupled transcription / translation reaction.
- the GFP cDNA or CAT cDNA is encoded on an expression plasmid and is under the control of a T7 phage promoter. Accordingly, the transcription into mRNA takes place by means of the DNA-dependent T7-RNA polymerase.
- the mRNA thus transcribed in vitro is translated into protein using the E. coli lysate in the coupled system.
- Piasmide pIVEX 2.1 -GFP contain the sequence for the green fluorescent protein from Aequoria victori in the form of a mutant GFPcycle3 (27 kDa) (Nature Biotechnology (1996) 14, 315-319); the coding region of the GFPcycle3 mutant was replaced in pTU58 Wild-type GFP sequence cloned (Science (1994) 263, 802) (see Fig. 7 / SEQ. ID. NO .: 1).
- pIVEX 1.1-CAT contains the gene of chloramphenicol acetyltransferase from E. coli (see Fig. 8 / SEQ. ID. NO .: 2).
- E. coli S30 lysate The lysate was prepared with an E. coli A19 strain by a modified method according to Zubay (Annu. Rev. Genet. (1973) 7, 267).
- Modified lysate buffer 100 mM HEPES-KOH pH 7.6 / 30 ° C, 14 mM magnesium acetate, 60 mM potassium acetate, 0.5 mM dithiothreitol. Differences in the yield in different experiments are due to different lysate preparations.
- 3rd reaction solution 185 mM potassium acetate, 15 mM magnesium acetate, 4% glycerol, 2.06 mM ATP, 1.02 mM CTP, 1.64 mM GTP, 1.02 mM UTP, 257 ⁇ M per amino acid (all 20 naturally occurring amino acids), 10.8 ⁇ g / ml folic acid, 1.03 mM EDTA, 100 mM HEPES-KOH pH 7.6 / 30 ° C, 1 ⁇ g / ml rifampicin, 0.03% sodium azide, 40 mM Acetyl phosphate, 480 ⁇ g / ml tRNA from E.coli MRE600, 2 mM dithiothreitol, 10 mM mercaptoethanesulfonic acid, 70 mM KOH, 0.1 U / ⁇ l RNase inhibitor, 15 ⁇ g / ml plasmid, 220 ⁇ l / ml E
- the gel materials e.g. Sephadex G25 fine
- Empty columns were packed according to the usual procedures for chromatography columns.
- the packed chromatography columns were equilibrated with 1-2 column volumes of supply solution.
- the gel matrix was equilibrated by repeated suspension in a supply solution and sucked dry with a slight negative pressure. The matrix treated in this way was added to the batch mixture or built into the CECF reactor.
- the CECF reactors used consist of 2 chambers, the reaction chamber with a volume of 1 ml and the supply chamber with a volume of approx. 10 ml.
- the chambers are separated from each other by a 10 kDa dialysis membrane and can be fed through closable openings.
- Each chamber contains a magnetic core.
- Ready-to-use PDIO columns (Pharmacia) or thermostattable, commercially available chromatography columns (Pharmacia) packed with gel matrix are used as matrix column reactors. All reactor types were operated at 30 ° C. Batch batches were shaken, CECF reactions were stirred, matrix column reactors were loaded and eluted using pumps.
- GFP requires the presence of sufficient amounts of oxygen to form the fluorophore.
- the amount of oxygen dissolved in the reaction solution is small and is not sufficient for a complete conversion. Therefore, all samples were "matured" between 12 and 32 hours at 4 ° C.
- the samples were measured with a spectral fluorimeter from Kontron, type Tegimenta SFM-25. The excitation was at a wavelength of 395 nm, the emission was determined at a wavelength of 510 nm.
- Recombinant GFP from Röche Diagnostics, catalog number 1814 524 was used as standard. The calibration was carried out with standard solutions with a concentration of 1 ⁇ g / ml and 2 ⁇ g / ml.
- the samples were diluted 1:50 to 1: 400 with 100 mM HEPES-KOH pH 7.6 / 30 ° C., 14 mM magnesium acetate, 60 mM potassium acetate, 0.5 mM dithiothreitol, depending on the content.
- the CAT chloramphenicol acetyltransferase was determined enzymatically using the CAT FAST Green fluorescent substrate (Molecular Probes) according to the manufacturer's instructions.
- the composition of the batch reaction batch is described above (identical to the reaction solution).
- the template plasmid is finally added to the batch to start the reaction. 1 ml each of the reaction solution was placed in a closable reaction vessel. 2 g of equilibrated gel matrix (Sephadex G25, fine) were added to one of the batches. The batches were closed and incubated under rubble at 30 ° C. for four hours. The yield of GFP was determined according to the standard protocol (see above).
- 0.5 ml of equilibrated gel matrix (Sephadex G-10) was installed in the reaction chamber of a CECF reactor (1 ml reaction chamber, 10 ml supply chamber). 0.5 ml of a reaction solution modified in the composition was introduced into the reaction chamber.
- the concentration of the high molecular weight components of the reaction solution was 2-fold (960 ⁇ g / ml tRNA from E.coli MRE600, 0.2 U / ⁇ l RNase inhibitor, 30 ⁇ g / ml plasmid, 440 ⁇ l / ml E.coli A19 lysate, 4 U / ⁇ l T7-RNA polymerase), the concentration of the low-molecular components was 1-fold (ie as in the supply solution).
- reaction solution After 1 ml of reaction solution had been applied (15 ⁇ g GFP plasmid / ml), the column was closed and incubated at 30 ° C. for 6 hours. At the end of the reaction time, the reaction solution was removed from the CECF reactor or the reaction solution was eluted from the PD-10 column. The yield of GFP synthesized was determined according to the standard protocol (see above).
- the eluate was fractionated at 4 ° C.
- a CECF reaction (1 ml dimension) and a batch reaction (0.1 ml dimension) were carried out using the same reaction mixture.
- the yield of GFP synthesized in the fractions and the control batches was determined according to the standard protocol (see above).
- the yield could be increased by up to 250% by adding an equilibrated matrix.
- Different gel materials which differ in terms of the type of polymer, particle size and exclusion molecular weight, can be used in the matrix reactor.
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Abstract
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10011209 | 2000-03-08 | ||
| DE10011209A DE10011209A1 (de) | 2000-03-08 | 2000-03-08 | Matrix-Reaktor und Verfahren zur Herstellung von Produkten in diesem Reaktor |
| PCT/EP2001/002548 WO2001066243A2 (de) | 2000-03-08 | 2001-03-07 | Matrix-reaktor und verfahren zur herstellung von produkten in diesem reaktor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1263981A2 true EP1263981A2 (de) | 2002-12-11 |
Family
ID=7633922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01911745A Withdrawn EP1263981A2 (de) | 2000-03-08 | 2001-03-07 | Matrix-reaktor und verfahren zur herstellung von produkten in diesem reaktor |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7192767B2 (de) |
| EP (1) | EP1263981A2 (de) |
| JP (1) | JP2003525616A (de) |
| CN (1) | CN1429275A (de) |
| AR (1) | AR027973A1 (de) |
| AU (1) | AU4068301A (de) |
| CA (1) | CA2401839A1 (de) |
| DE (1) | DE10011209A1 (de) |
| WO (1) | WO2001066243A2 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ519011A (en) | 2002-09-01 | 2005-01-28 | Univ Waikato | Reaction process |
| US9052304B2 (en) | 2009-03-13 | 2015-06-09 | Terrasep, Llc | Methods and apparatus for centrifugal liquid chromatography |
| CN102703433B (zh) * | 2012-06-12 | 2014-10-08 | 中国水产科学研究院黄海水产研究所 | 基于多孔材料的核酸等温扩增试剂的保存方法及试剂 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1441787A1 (ru) | 1987-04-29 | 1990-09-23 | Институт Белка Ан Ссср | Способ получени пептидов и белков в бесклеточной системе трансл ции |
| US5478730A (en) * | 1988-12-21 | 1995-12-26 | Institute Of Protein Research | Method of preparing polypeptides in cell-free translation system |
| ATE147787T1 (de) | 1989-07-31 | 1997-02-15 | Inst Of Protein Research Russi | Verfahren zur herstellung von polypeptiden in einem zellfreien system |
| DE69428454T2 (de) | 1993-12-20 | 2002-05-02 | David Jeston Baylink | Verfahren zur freisetzung bindender proteine von liganden |
| KR0131166B1 (ko) * | 1994-05-04 | 1998-04-11 | 최차용 | 무세포시스템에서 단백질을 제조하는 방법 |
| EP0695760A1 (de) * | 1994-08-05 | 1996-02-07 | F. Hoffmann-La Roche Ag | Tumormarker für Lungenkrebs |
| US6033868A (en) * | 1994-11-14 | 2000-03-07 | Utah State University | In Vitro biosynthesis of proteins in native conformation |
| JP4021529B2 (ja) | 1997-10-28 | 2007-12-12 | 株式会社タダノ | 作業機の制御装置 |
| RU2169154C2 (ru) * | 1999-03-25 | 2001-06-20 | Институт белка РАН | Способ получения полипептидов в бесклеточной системе |
| ATE424467T1 (de) * | 1999-05-11 | 2009-03-15 | Cellfree Sciences Co Ltd | Zubereitung, die einen zellextrakt zur herstellung eines zellfreien proteins enthalten und vorrichtung zur herstellung eines zellfreien proteins |
-
2000
- 2000-03-08 DE DE10011209A patent/DE10011209A1/de not_active Withdrawn
-
2001
- 2001-03-07 CN CN01806292.XA patent/CN1429275A/zh active Pending
- 2001-03-07 EP EP01911745A patent/EP1263981A2/de not_active Withdrawn
- 2001-03-07 AU AU40683/01A patent/AU4068301A/en not_active Abandoned
- 2001-03-07 WO PCT/EP2001/002548 patent/WO2001066243A2/de not_active Ceased
- 2001-03-07 US US10/221,124 patent/US7192767B2/en not_active Expired - Fee Related
- 2001-03-07 JP JP2001564887A patent/JP2003525616A/ja active Pending
- 2001-03-07 CA CA002401839A patent/CA2401839A1/en not_active Abandoned
- 2001-03-08 AR ARP010101091A patent/AR027973A1/es unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0166243A3 * |
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|---|---|
| AU4068301A (en) | 2001-09-17 |
| US20040053405A1 (en) | 2004-03-18 |
| JP2003525616A (ja) | 2003-09-02 |
| US7192767B2 (en) | 2007-03-20 |
| WO2001066243A2 (de) | 2001-09-13 |
| CN1429275A (zh) | 2003-07-09 |
| DE10011209A1 (de) | 2001-09-13 |
| CA2401839A1 (en) | 2001-09-13 |
| AR027973A1 (es) | 2003-04-23 |
| WO2001066243A3 (de) | 2001-12-27 |
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