The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Feb. 24, 2017
Nanjing Bestzyme Bio-engineering Co., Ltd., Nanjing, CN;
Yan Fan, Nanjing, CN;
Xiuzhen Du, Nanjing, CN;
Minghui Hao, Nanjing, CN;
Yan Sun, Nanjing, CN;
Ke Huang, Nanjing, CN;
Feng Li, Nanjing, CN;
NANJING BESTZYME BIO-ENGINEERING CO., LTD., Nanjing, CN;
Abstract
Provided is an α amylase variant obtained by the mutation or deletion of at least one amino acid residue in the amino acid sequence of a parent α amylase, and at the same time, same is an α amylase maintaining the capability of the parent to hydrolyse α-1,4 glycosidic bond, wherein the amino acid sequence homology of the two reaches 95% or more. A series of α amylase variants provided therein have a relatively high catalytic activity under acidic conditions of pH 5.0 and high temperatures of at least 100° C.