专利号:US-6451543-B1 优先权日:1998-08-31 标题:Lipid matrix-assisted chemical ligation and synthesis of membrane polypeptides 发明人:KOCHENDOERFER GERD G; HUNTER CHRISTIE L; KENT STEPHEN B H; BOTTI PAOLO 权利人:GRYPHON SCIENCES 摘要:The present invention relates to methods and compositions for lipid matrix-assisted chemical ligation and synthesis of membrane polypeptides that are incorporated in a lipid matrix. The invention is exemplified in production of a prefolded membrane polypeptide embedded within a lipid matrix via stepwise chemoselective chemical ligation of unprotected peptide segments, where at least one peptide segment is embedded in a lipid matrix. Any chemoselective reaction chemistry amenable for ligation of unprotected peptide segments can be employed. Suitable lipid matrices include liposomes, micelles, cell membrane patches and optically isotropic cubic lipidic phase matrices. Prefolded synthetic and semi-synthetic membrane polypeptides synthesized according to the methods and compositions of the invention also permit site-specific incorporation of one or more detectable moieties, such as a chromophore, which can be conveniently introduced during synthesis. The methods and compositions of the invention have multiple uses. For example, they can be used to assay ligand binding to membrane polypeptides and domains comprising a receptor, and thus are extremely useful for structure/function studies, drug screening/selection/design, and diagnostics and the like, including high-throughput applications. The methods and compositions of the invention are particularly suited for FRET analyses of previously inaccessible membrane polypeptides.
专利号:US-2003049619-A1 优先权日:2001-03-21 标题 :Methods for the synthesis of polynucleotides and combinatorial libraries of polynucleotides 发明人:DELAGRAVE SIMON; MARRS BARRY 摘要:Methods for the synthesis of polynucleotides and derivatives thereof are provided. Methods for the preparation of combinatorial libraries of polynucleotides are also provided. In addition, methods for the preparation and identification of polynucleotides having a predetermined property are provided.
专利号:US-2003159164-A1 优先权日:1998-05-29 标 题:Compositions and methods for the synthesis of fatty acids, their derivatives and downstream products 发明人:KOPCHICK JOHN JOSEPH; KELDER BRUCE; HUANG YUNG-SHENG; KIRCHNER STEPHEN J; MUKERJI PRADIP 摘要:The invention generally relates to synthesis of essential fatty acids and their derivatives, long-chain polyunsaturated fatty acids (LC-PUFAs) and eicosanoids in transfected cells and in transgenic animals.
专利号:WO-9720061-A1 优先权日:1995-11-30 标题:Synthesis of hyaluronic acid 发明人:WONG CHI-HUEY; DELUCA CLAUDIO 权利人:SCRIPPS RESEARCH INST; WONG CHI HUEY; DELUCA CLAUDIO 摘要:A preparative enzymatic synthesis of hyaluronic acid (HA) from UDP-N-acetyl-D-glucosamine (UDP-GlcNAc) and UDP-glucuronic acid (UDP-GlcA) catalyzed by hyaluronic acid synthase is coupled with regeneration of the sugar nucleotides. Polymerizing UDP-GlcA and UDP-GlcNAc to form hyaluronic acid results in the formation of released UDP. The released UDP is, in turn, employed in the regeneration of UDP-GlcA and UDP-GlcNAc. Use of the released UDP for regenerating UDP-GlcA and UDP-GlcNAc prevents a build-up of these compounds and prevents or reduces feed back inhibition of the hyaluronic acid synthase reaction that would otherwise be caused by such build-up. Accordingly, the product yield is enhanced by the recycling of these compounds.
专利号:US-5405949-A 优先权日:1993-03-29 标题 :Process for the synthesis of glycosaminoglycans with heparin or heparan structure modified in position 2 of the α-L-iduronic-2-O-sulfate acid 发明人:UNGARELLI FABRIZIO; PIANI SILVANO 权利人:ALFA WASSERMANN SPA 摘要:A process for the synthesis of glycosaminoglycans with heparin or heparan structure modified in position 2 of the α-L-iduronic-2-O-sulfate acid in which the sulfate group is, entirely or in part, substituted with a nucleophilic group, is described. The process is carried out by treating glycosaminoglycans having heparin or heparan structure with a nucleophilic reagent in alkaline solution.
专利号:US-5410039-A 优先权日:1993-03-29 标题 :Process for the synthesis of glycosaminoglycans containing α-L-galacturonic acid substituted with nucleophilic groups in position 3 发明人:UNGARELLI FABRIZIO; PIANI SILVANO 权利人:ALFA WASSERMANN SPA 摘要:A process for the synthesis of glycosaminoglycans in which one of the α-L-iduronic-2-O-sulfate acid saccharide units, which is characteristic of glycosaminoglycans with heparin or heparan structure, has undergone a structural modification, entirely or in part, with transformation into α-L-galacturonic acid substituted in position 3 with nucleophilic groups, is described. The process is carried out by treating glycosaminoglycans having heparin or heparan structure with a nucleophilic reagent in alkaline solution.
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合成参考文献
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