WO2005063782A1 - アスパラギン結合型糖タンパク質コア糖鎖構造の合成 - Google Patents
アスパラギン結合型糖タンパク質コア糖鎖構造の合成 Download PDFInfo
- Publication number
- WO2005063782A1 WO2005063782A1 PCT/JP2004/019384 JP2004019384W WO2005063782A1 WO 2005063782 A1 WO2005063782 A1 WO 2005063782A1 JP 2004019384 W JP2004019384 W JP 2004019384W WO 2005063782 A1 WO2005063782 A1 WO 2005063782A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- group
- mannose
- trisaccharide
- azide
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H13/00—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids
- C07H13/02—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids
- C07H13/04—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals attached to acyclic carbon atoms
- C07H13/06—Fatty acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
- C07H1/06—Separation; Purification
- C07H1/08—Separation; Purification from natural products
Definitions
- the present invention belongs to the field of sugar chain chemical synthesis, and more particularly, to a method for easily chemically synthesizing a glycoprotein sugar chain and an intermediate therefor.
- Glycoproteins are proteins having an oligosaccharide moiety called a sugar chain.
- glycoproteins are deeply involved in life phenomena such as cell adhesion and information transmission in vivo, and the structures of sugar chains that cause various life phenomena are gradually increasing.
- the amount expressed in the function of sugar chains in vivo is very small, and it is one of the very difficult glycoproteins to obtain pure amounts enough to elucidate the chemical and physical properties of sugar chains.
- Asparagine-linked glycoprotein is widely found in human serum and ovalbumin.
- the asparagine-linked sugar chains are classified into high mannose type, complex type, and mixed type based on the characteristics of the branched sugar chain structure and the constituent sugars. All of these forms have a common pentasaccharide core glycan structure consisting of three molecules of mannose and two molecules of N-acetyldarcosamine at the reducing end of the glycan:
- Non-Patent Document 1 describes a method for chemically synthesizing an) 8-mannoglycoside linkage structure, which involves a very complicated process, and requires time and cost.
- Non-Patent Document 1 Kunz, H. and Gunther, W. (1988) Angrew. Chem. Int. Ed. Engl. 27, 1086-1087
- the present inventors have focused on natural polysaccharides having a structure in which mannose residues are linked by ⁇ 1 ⁇ 4 bonds, in particular, galatatomannans, guar gums, and mannans having mannose j8-1,4-linkages. . That is, in the present invention, the formation of the 13-mannoglycoside bond, which is the biggest difficulty in the synthesis of the core sugar chain structure, is changed to Man ⁇ 1 ⁇ contained in the structure of the natural polysaccharide. The aim is to overcome this by using a new synthetic method of using 4Man disaccharide to establish an efficient method for synthesizing the core sugar chain structure.
- the present invention relates to a method for producing a reducing terminal trisaccharide (Man jS 1 ⁇ 4G1CN J8l ⁇ 4GlcN) in a core sugar chain structure of an asparagine-linked glycoprotein sugar chain, wherein (1) mannose ⁇ 8-1 , 4 -linked polysaccharides, preferably mannose
- n is an integer of 50 or more
- n is an integer of 50 or more
- P 1 is a protecting group for a hydroxyl group, and a wavy line indicates that the OP 1 group is in an axial configuration, an equatorial configuration, or a mixture of both configurations.
- ManP 1 ⁇ 1 -AManP 1 type conjugate represented by the formula:
- P 1 and P 1 are as defined above, P 4 and P 6 are each independently an amino protecting group, and P 5 is a carboxy protecting group
- P 1 is a protecting group for a hydroxyl group, and a wavy line indicates that the -toro group has an axial configuration, an equatorial configuration, or a mixture of both configurations.
- the present invention can easily synthesize the trisaccharide (Man iS1 ⁇ 4GlcN
- a polysaccharide having a mannose / 3-1,4 bond is acid-hydrolyzed and then acetylated to obtain a disaccharide compound (I) Man
- the mannose on the reducing terminal side is converted into glycal by a chemical method, and the compound is converted into compound (II) by performing an azido nitration reaction.
- the compound (II) in which the azide group is located in the equatorial position at the 2-position on the reducing end side is a useful key intermediate that can be converted into the ManSl ⁇ 4GlcNAc portion of the core sugar chain structure.
- an intermediate ( ⁇ ) that can be converted into the most difficult ManiSl ⁇ 4GlcNAc structure in the core sugar chain structure ( ⁇ ) Inexpensive, large and easy to synthesize. Furthermore, by using this intermediate ( ⁇ ) as a glycosyl donor, a compound having a trisaccharide structure that can be easily converted to a trisaccharide at the reducing end of the core sugar chain structure (Man
- Step 1 produces a polysaccharide having a mannose j8-1,4 bond and a mannose disaccharide (ManP ⁇ 1 ⁇ AManP 1 type) compound (I).
- the polysaccharide having a mannose ⁇ 1,4 bond is hydrolyzed, then the hydroxyl group is protected, and the desired disaccharide is separated.
- a polysaccharide having a mannose j8-l, 4-linkage preferably used is galatatomannan, guar gum and mannan having a mannose ⁇ -1,4-linkage, and is more preferably.
- V the formula (V):
- a galactomannnan derivative (galactomannan glycan
- Galactomannoglycan is widely found in seeds of leguminous plants and alfalfa kurono fruits. Guanole guar (Cyamopsis tetragonolobus) and carob or locust bean (Ceratonia siliqua) fruit galatatmannans are commercially available as plant gum products. Gua gum, which is obtained from guar seed, is a natural polysaccharide in which galactose is branched by a 1 ⁇ 6 bonds for each mannose residue in a linear sugar chain in which mannose is connected by 131 ⁇ 4 bonds. . This substance is mostly used as a food additive.It is used as a thickener in various canned products, as a food quality preservation (prevention of shape loss) and as a taste relaxant. Inexpensive.
- Mannan derivatives are a generic term for polysaccharides composed of D-mannose power. Plant mannan, which is contained in the seed endosperm of radish and the bulbs of orchids, has a linear structure in which D mannose residues are linked by ⁇ 1 ⁇ 4 bonds, and is hardly soluble in water.
- the hydrolysis of polysaccharides having a mannose j8-1,4 bond usually involves acid hydrolysis.
- sulfuric acid preferably 10-20% sulfuric acid, trifluoroacetic acid, sulfuric acid acetic acid solution is used, and the reaction temperature is preferably 50-70 ° C.
- an acetyl group, a benzyl group, a 4-methoxybenzyl group, a benzoyl group, a methoxymethyl group, a tetrahydroviranyl group, a trimethylsilyl group, a triethylsilyl group and the like usually used in the field of carbohydrate chemistry are used. It is.
- a glycal compound is produced from the mannose disaccharide (ManP 1 ⁇ l-AManP 1 type) compound (I).
- a glycalyl conjugate is produced by halogenating and reducing the 1-position of mannose on the reducing end side of the disaccharide compound.
- Halogenation is usually performed at about room temperature using hydrogen halide, acid halide or the like.
- the reduction is performed using a metal such as zinc, but avoids high temperatures.
- Step 3 In step 3, the glycarid ligated product is subjected to an azide nitration reaction to produce an azide disaccharide ligated product ( ⁇ ) in which the azide group is located in the equatorial position at position 2 of the mannose on the reducing end side.
- the azide nitration reaction is performed by simultaneously reacting azide and -toro. By this reaction, a mixture of equatorial and axial is produced. By separating and purifying the mixture, a conjugate having an azide group at the 2-position of mannose on the reducing end side is arranged in the equatorial.
- Step 4 is a step of substituting the -toro group of the azide disaccharide conjugate with a leaving group.
- the leaving group used here is generally fluorine, bromine, chlorine, trichloroacetimidate, 4-pentenyl, alkylthio (sulfur), arylthio, and the like.
- the azide 2 Twi ⁇ product - the Toro group - OP group (P is a hydroxyl protecting group) by substitution, after deprotection of the P 10, by reacting a trihalo acetonitrile, trihaloalkyl acetimidate Body.
- hydrogen halide is reacted to obtain a halogenated compound.
- OP body or the P 1G deprotection body, pent - Le body Asechiruchio body may be converted by conventional methods into a leaving group introduction of such Ariruchio body.
- Step 5 is reacted with amino-protected Darukobiranoshido the leaving group introducing body obtained, to produce a trisaccharide (Man ⁇ l ⁇ 4GlcNP 1 ⁇ l ⁇ 4GlcNP 2 type) compound.
- Amino protected darcoviranoside can be prepared according to the following scheme.
- Amino protecting group As P 3 , a phthalimide group, a tert-butyloxycarbol group, a benzyloxycarbol group, an acetyl group, a benzoyl group, a benzyl group or the like is usually used.
- the obtained leaving group-introduced product is reacted under acidic (Lewis acidic) conditions.
- step 6 asparagine is bound to the obtained trisaccharide conjugate.
- Asparagine can be bound, for example, according to the scheme shown below.
- the trisaccharide synthesized as described above can be introduced into an asparagine residue of the target protein, and a new sugar can be added to extend the sugar chain. Furthermore, the sugar chain can be extended to the arame trisaccharide and then introduced into the protein.
- the protein can be extended by applying ordinary peptide synthesis chemistry to the obtained asparagine-linked trisaccharide asparagine.
- non-reducing end manno If normal carbohydrate chemistry is applied to sugars, sugar chains can be extended.
- the sources of the reagents used in the examples are as follows.
- DBU 1,8-Diazabicyclo [5,4,0] undec-ene
- Acetonitrile (Acetonitrile, for organic synthesis)
- Guar gum is acid-hydrolyzed with trifluoroacetic acid (TFA) to protect 70% ethanol-soluble galactomannan.
- TFA trifluoroacetic acid
- Galatatomannan (2) which was a 70% ethanol-soluble substance, was measured by MALDI-TOFMS, and it was confirmed that it was degraded from a polymerization degree of 1 to 8.
- reaction solution was subjected to celite filtration to remove zinc, ice water was added to the filtrate, and the mixture was extracted with chloroform, and extracted with water, NaHCO aqueous solution, and NaCl aqueous solution in this order. After washing, dry over anhydrous MgSO.
- Amino protected darcoviranoside (12) was prepared according to the following synthetic scheme.
- glycosyltransferase When a sugar is newly added to a sugar chain to extend it, it is convenient to use a glycosyltransferase.Therefore, automatic synthesis of a sugar chain usually uses a sugar to be added and a glycosyltransferase for adding the sugar. Is done. However, there is a glycosyltransferase for creating the reducing terminal trisaccharide (ManSl ⁇ 4GlcN
- the present invention provides a simple method for synthesizing a reducing terminal trisaccharide having a core structure by utilizing galactomannan, guar gum and a Z or mannan derivative having mannose
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Saccharide Compounds (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/584,065 US7598372B2 (en) | 2003-12-26 | 2004-12-24 | Synthesis of core sugar chain structure of asparagine-linked glycoprotein |
EP04807740A EP1698634A4 (en) | 2003-12-26 | 2004-12-24 | SYNTHESIS OF A STRUCTURE OF INNER SUGAR CHAINS OF GLYCOPROTEIN LINKED WITH ASPARAGIN |
CN2004800419791A CN1918174B (zh) | 2003-12-26 | 2004-12-24 | 天冬酰胺结合型糖蛋白的核心糖链的合成 |
JP2005516654A JP4778315B2 (ja) | 2003-12-26 | 2004-12-24 | アスパラギン結合型糖タンパク質コア糖鎖構造の合成 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-433717 | 2003-12-26 | ||
JP2003433717 | 2003-12-26 |
Publications (1)
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WO2005063782A1 true WO2005063782A1 (ja) | 2005-07-14 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/019384 WO2005063782A1 (ja) | 2003-12-26 | 2004-12-24 | アスパラギン結合型糖タンパク質コア糖鎖構造の合成 |
Country Status (5)
Country | Link |
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US (1) | US7598372B2 (ja) |
EP (1) | EP1698634A4 (ja) |
JP (1) | JP4778315B2 (ja) |
CN (1) | CN1918174B (ja) |
WO (1) | WO2005063782A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014034274A1 (ja) * | 2012-08-30 | 2014-03-06 | 国立大学法人新潟大学 | オリゴ糖合成酵素マンノシル-β-1,4-N-アセチルグルコサミンホスホリラーゼおよびアスパラギン結合型糖タンパク質のコア糖鎖構造の製造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001524484A (ja) * | 1997-11-21 | 2001-12-04 | アドバンスト メディスン イースト,インク. | モエノマイシン類似体のコンビナトリアルライブラリー及びその製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07224082A (ja) * | 1994-02-14 | 1995-08-22 | Rikagaku Kenkyusho | アスパラギン結合型糖誘導体及びその製法 |
JPH11255807A (ja) * | 1998-03-13 | 1999-09-21 | Noguchi Inst | 糖鎖アスパラギン活性エステル誘導体とその合成中間体 |
EP2322533A1 (en) * | 2001-06-19 | 2011-05-18 | Otsuka Chemical Co., Ltd. | Process for producing sugar chain asparagine derivative |
-
2004
- 2004-12-24 EP EP04807740A patent/EP1698634A4/en not_active Withdrawn
- 2004-12-24 JP JP2005516654A patent/JP4778315B2/ja not_active Expired - Fee Related
- 2004-12-24 WO PCT/JP2004/019384 patent/WO2005063782A1/ja not_active Application Discontinuation
- 2004-12-24 US US10/584,065 patent/US7598372B2/en not_active Expired - Fee Related
- 2004-12-24 CN CN2004800419791A patent/CN1918174B/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001524484A (ja) * | 1997-11-21 | 2001-12-04 | アドバンスト メディスン イースト,インク. | モエノマイシン類似体のコンビナトリアルライブラリー及びその製造方法 |
Non-Patent Citations (2)
Title |
---|
BOLAM D. ET AL: "Synthesis of 2, 4-dinitrophenyl glycosides of D-xylobiose and D-mannobiose.", CARBOHYDRATE RESEARCH, vol. 312, 1998, pages 85,89, XP004204823 * |
VON WOLFGANG G. ET AL: "Synthese eines beta-Mannosyl-Chitobiosyl-Asparagin-Konjugates - eines zentralen Elements der Core-Region van N-Glycoproteinen.", ANGEWANDTE CHEMIE, vol. 102, no. 9, 1990, pages 1068 - 1069, XP002987755 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014034274A1 (ja) * | 2012-08-30 | 2014-03-06 | 国立大学法人新潟大学 | オリゴ糖合成酵素マンノシル-β-1,4-N-アセチルグルコサミンホスホリラーゼおよびアスパラギン結合型糖タンパク質のコア糖鎖構造の製造方法 |
JP2014045704A (ja) * | 2012-08-30 | 2014-03-17 | Niigata Univ | オリゴ糖合成酵素およびアスパラギン結合型糖タンパク質のコア糖鎖構造の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1698634A4 (en) | 2010-11-03 |
EP1698634A1 (en) | 2006-09-06 |
JP4778315B2 (ja) | 2011-09-21 |
US7598372B2 (en) | 2009-10-06 |
US20070166783A1 (en) | 2007-07-19 |
JPWO2005063782A1 (ja) | 2007-07-19 |
CN1918174A (zh) | 2007-02-21 |
CN1918174B (zh) | 2011-09-07 |
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