专利号:US-2024392331-A1 优先权日:2023-05-23 标题:Engineered Microorganisms For Synthesis Of Polyhydroxyalkanoates 发明人:CHARLES TREVOR; CHENG JIUJUN; THAKOR ARANKSHA; LEBLANC NICOLE 权利人:CHARLES TREVOR; CHENG JIUJUN; THAKOR ARANKSHA; LEBLANC NICOLE 摘要:A genetically engineered strain of Pseudomonas is provided, which is capable of metabolizing lactose as a sole carbon source in the production of polyhydroxyalkanoates (PHAs). A method of engineering microorganisms and a method of PHA production are also provided, wherein lactose is used as a sole carbon source.
专利号:US-6600029-B1 优先权日:1995-12-19 标题:Metabolic engineering of polyhydroxyalkanoate monomer synthases 发明人:SHERMAN DAVID H; WILLIAMS MARK D; XUE YONGQUAN 权利人:UNIV MINNESOTA 摘要:A novel pathway for the synthesis of polyhydroxyalkanoate is provided. A method of synthesizing a recombinant polyhydroxyalkanoate monomer synthase is also provided. These recombinant polyhydroxyalknoate synthases are derived from multifunctional fatty acid synthases or polyketide synthases and generate hydroxyacyl acids capable of polymerization by a polyhydroxyalknoate synthase.
专利号:US-RE37543-E 优先权日:1996-08-13 标 题:DNA sequence useful for the production of polyhydroxyalkanoates 发明人:KRUEGER NIELS; STEINBUECHEL ALEXANDER 权利人:MONSANTO CO 摘要:A genomic fragment harboring the gene phaG was cloned by phenotype complementation of Pseudomonas putida KT2440 mutants, defective in the polyhydroxyalkanoic acid (PHA) synthesis via de novo fatty acid biosynthesis but not affected in PHA biosynthesis via fatty acid beta-oxidation. The 885-bp phaG gene encodes a protein of 295 amino acids with a molecular weight of 33.876 Da. The transcriptional induction of phaG could be observed under conditions of PHA synthesis via de novo fatty acid biosynthesis whereas no induction was detected under conditions which favor PHA synthesis via fatty acid degradation by beta-oxidation. The phaG gene is useful for the production of PHAs in bacteria and plants.
专利号:US-2003194784-A1 优先权日:2001-04-17 标题:DNA encoding methymycin and pikromycin 发明人:SHERMAN DAVID H; LIU HUNG-WEN; XUE YONGQUAN; ZHAO LISHAN 摘要:A novel pathway for the synthesis of polyhydroxyalkanoates is provided. A method of synthesizing a recombinant polyhydroxyalkanoate monomer synthase is also provided. These recombinant polyhydroxyalkanoate synthases are derived from multifunctional fatty acid synthases or polyketide synthases and generate hydroxyacyl acids capable of polymerization by a polyhydroxyalkanoate synthase. Also provided is a biosynthetic gene cluster for methymycin and pikomycin as well as a biosynthetic gene cluster for desosamine.
专利号:US-8563281-B2 优先权日:2008-04-23 标题 :Method for production of polyester copolymer using recombinant microorganism 发明人:TAGUCHI SEIICHI; TAJIMA KENJI; SATOH YASUHARU; MATSUMOTO KEN ICHIRO; YAMADA MIWA; OBATA SHUSEI; KAMBE HIROMI; KOHDA KATSUNORI; OHNO KATSUHIRO; SHIMAMURA TAKASHI 权利人:TAGUCHI SEIICHI; TAJIMA KENJI; SATOH YASUHARU; MATSUMOTO KEN ICHIRO; YAMADA MIWA; OBATA SHUSEI; KAMBE HIROMI; KOHDA KATSUNORI; OHNO KATSUHIRO; SHIMAMURA TAKASHI; TOYOTA MOTOR CO LTD 摘要:The object of the present invention is to provide a method for efficiently producing a polyester copolymer consisting of 3-hydroxybutyrate and lactate via microbial fermentation with the use of a sugar as a starting material. The method may comprise culturing a recombinant microorganism expressing: a protein capable of catalyzing the transfer of CoA to propionic acid and/or lactate; a protein capable of catalyzing the formation of acetoacetyl-CoA from two acetyl-CoA molecules; a protein capable of catalyzing acetoacetyl-CoA reduction; and a protein capable of catalyzing polyhydroxyalkanoate synthesis. According to the production method, a polyester copolymer consisting of 3-hydroxybutyrate and lactate can be efficiently produced using an inexpensive carbon source as a starting material, and thus the production cost of a biodegradable plastic can be reduced.
专利号:US-6103956-A 优先权日:1998-03-31 标题:Polyhydroxyalkanoate synthesis in plants 发明人:SRIENC FRIEDRICH; SOMERS DAVID A; HAHN J J; ESCHENLAUER ARTHUR C 权利人:UNIV MINNESOTA 摘要:Novel transgenic plants and plant cells are capable of biosynthesis of polyhydroxyalkanoate (PHA). Heterologous enzymes involved in PHA biosynthesis, particularly PHA polymerase, are targeted to the peroxisome of a transgenic plant. Transgenic plant materials that biosynthesize short chain length monomer PHAs in the absence of heterologous beta -ketothiolase and acetoacetyl-CoA reductase are also disclosed.
参考标题:Total Synthesis Of Fellutamide B And Deoxy-Fellutamides B, C, And D 作者:Andrew Giltrap,Katie Cergol,Angel Pang,Warwick Britton,Richard Payne 摘要:The Total Syntheses Of The Marine-Derived Lipopeptide Natural Product Fellutamide B And Deoxy-Fellutamides B, C, And D Are Reported. These Compounds Were Accessed Through A Novel Solid-Phase Synthetic Strategy Using Weinreb Amide-Derived Resin. As Part Of The Synthesis, A New Enantioselective Route To (3R)-Hydroxy Lauric Acid Was Developed Utilizing A Brown Allylation Reaction Followed By An Oxidative
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参考文献:10.1111/j.1365-2958.2011.07765.x 摘要:Hankins JV, Madsen JA, Giles DK, Childers BM, Klose KE, Brodbelt JS, Trent MS. Elucidation of a novel Vibrio cholerae lipid A secondary hydroxy‐acyltransferase and its role in innate immune recognition. Molecular Microbiology. 2011 Jul 18;81(5):1313–29. doi: 10.1111/j.1365-2958.2011.07765.x. 参考文献:10.1128/jb.01502-10 摘要:MacArthur I, Jones JW, Goodlett DR, Ernst RK, Preston A. Role of pagL and lpxO in Bordetella bronchiseptica lipid A biosynthesis. J Bacteriol. 2011 Sep;193(18):4726–35.