α-amylase variant and use thereof
US11104909B2 · kind B2 · utility
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Key dates
| Filing date | Feb 24, 2017 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Sep 30, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y302/01001
- WIPO fieldBiotechnology
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.