Cellucloytic enzymes, nucleic acids encoding them and methods for making and using them
申请人:Verenium Corporation
公开号:EP2444488A1
公开(公告)日:2012-04-25
The invention provides polypeptides having any cellulolytic activity, e.g., a cellulase activity, a endoglucanase, a cellobiohydrolase, a beta-glucosidase, a xylanase, a mannanse, a β-xylosidase, an arabinofuranosidase, and/or an oligomerase 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 any cellulolytic activity, e.g., a cellulase activity, e.g., endoglucanase, cellobiohydrolase, beta-glucosidase, xylanase, mannanse, β-xylosidase, arabinofuranosidase, and/or oligomerase activity, including thermostable and thermotolerant activity, and polynucleotides encoding these enzymes, and making and using these polynucleotides and polypeptides. In one aspect, the invention provides polypeptides having an oligomerase activity, e.g., enzymes that convert recalcitrant soluble oligomers to fermentable sugars in the saccharification of biomass. The polypeptides of the invention can be used in a variety of pharmaceutical, agricultural, food and feed processing and industrial contexts. The invention also provides compositions or products of manufacture comprising mixtures of enzymes comprising at least one enzyme of this invention.
本发明提供了具有任何纤维素分解活性,例如纤维素酶活性、内切葡聚糖酶、纤维素水解酶、β-葡萄糖苷酶、木聚糖酶、甘露糖酶、β-木糖苷酶、阿拉伯呋喃糖苷酶和/或低聚酶活性的多肽、编码这些多肽的多核苷酸以及制造和使用这些多核苷酸和多肽的方法。在一个方面,本发明涉及具有任何纤维素分解活性的多肽,例如纤维素酶活性,例如、内切葡聚糖酶、纤维素水解酶、β-葡萄糖苷酶、木聚糖酶、甘露糖苷酶、β-木糖苷酶、阿拉伯呋喃糖苷酶和/或低聚糖酶活性,包括恒温和耐热活性,以及编码这些酶的多核苷酸,并制造和使用这些多核苷酸和多肽。在一个方面,本发明提供了具有低聚物酶活性的多肽,例如,在生物质糖化过程中将难溶性低聚物转化为可发酵糖的酶。本发明的多肽可用于各种制药、农业、食品和饲料加工以及工业领域。本发明还提供了包含至少一种本发明酶的酶混合物的组合物或制造产品。