申请人:Mathur Eric J.
公开号:US20090324574A1
公开(公告)日:2009-12-31
The invention provides hydrolases, polynucleotides encoding them, and methods of making and using these polynucleotides and polypeptides. In one aspect, the invention is directed to polypeptides, e.g., enzymes, having a hydrolase activity, e.g., an esterase, acylase, lipase, phospholipase (e.g., phosphplipase A, B, C and D activity, patatin activity, lipid acyl hydrolase (LAH) activity) or protease activity, including thermostable and thermotolerant hydrolase activity, and polynucleotides encoding these enzymes, and making and using these polynucleotides and polypeptides. The hydrolase activities of the polypeptides and peptides of the invention include esterase activity, lipase activity (hydrolysis of lipids), acidolysis reactions (to replace an esterified fatty acid with a free fatty acid), transesterification reactions (exchange of fatty acids between triglycerides), ester synthesis, ester interchange reactions, phospholipase activity and protease activity (hydrolysis of peptide bonds). The polypeptides of the invention can be used in a variety of pharmaceutical, agricultural and industrial contexts, including the manufacture of cosmetics and nutraceuticals. In another aspect, the polypeptides of the invention are used to synthesize enantiomerically pure chiral products.
本发明提供了
水解酶、编码它们的多核苷酸以及制备和使用这些多核苷酸和
多肽的方法。在一个方面,本发明涉及具有
水解酶活性的
多肽,例如
酯酶、酰化酶、
脂肪酶、
磷脂酶(例如
磷脂酶A、B、C和D活性、薯蛋白活性、脂肪酰基
水解酶(
LAH)活性)或
蛋白酶活性,包括热稳定和热耐受
水解酶活性,以及编码这些酶的多核苷酸,制备和使用这些多核苷酸和
多肽。本发明中
多肽和
多肽的
水解酶活性包括
酯酶活性、
脂肪酶活性(
水解脂肪)、酸解反应(用游离
脂肪酸替代酯化
脂肪酸)、酯交换反应(三酰
甘油之间
脂肪酸的交换)、酯合成、酯交换反应、
磷脂酶活性和
蛋白酶活性(
水解肽键)。本发明中的
多肽可用于各种制药、农业和工业环境中,包括化妆品和营养保健品的制造。在另一个方面,本发明中的
多肽被用于合成对映纯手性产物。