申请人:Weiner David P.
公开号:US20090038023A1
公开(公告)日:2009-02-05
This invention provides polypeptides having lyase activity, polynucleotides encoding these polypeptides, and methods of making and using these polynucleotides and polypeptides. In one aspect, the invention is directed to polypeptides having ammonia lyase activity, e.g., phenylalanine ammonia lyase, tyrosine ammonia lyase and/or histidine ammonia lyase activity, including thermostable and thermotolerant activity, and polynucleotides encoding these enzymes, and making and using these polynucleotides and polypeptides. The polypeptides of the invention can be used in a variety of pharmaceutical, agricultural and industrial contexts.
X═NO
2
, Cl, Br, F, NH
2
, OH, H, alkyl at one or several o, m, and p positions
R═H or alkyl
本发明提供具有裂解酶活性的多肽,编码这些多肽的多核苷酸以及使用这些多核苷酸和多肽的制备和使用方法。在一个方面,本发明是针对具有氨裂解酶活性的多肽,例如苯丙氨酸裂解酶、酪氨酸裂解酶和/或组氨酸裂解酶活性,包括热稳定和热耐受性活性,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。本发明的多肽可用于各种制药、农业和工业背景中。其中,X═NO2、Cl、Br、F、NH2、OH、H,在一个或几个o、m和p位置上为烷基;R═H或烷基。