Patent · US Active

Method for producing a phytase variant with improved thermal stability, and a phytase variant and the use thereof

US9765313B2 · kind B2 · utility

2Cited by

0References

11Claims

0Family size

Assignee

Feed Research Institute, Chinese Academy of Agricultural Sciences · CN

Inventors

Bin Yao · Nanhu, CN
Huoqing Huang · Beijing, CN
Huiying Luo · Beijing, CN
Chao Shao · Beijing, CN
Yingguo Bai · Beijing, CN
Yaru Wang · Beijing, CN
Peilong Yang · Beijing, CN
Pengjun Shi · Chengdu, CN
Kun Meng · Beijing, CN
Heng Zhao · Brookfield, US
Rui Ma · Naperville, US

Key dates

Filing date	Nov 12, 2013
Grant date	Sep 19, 2017
Priority date	—
Expiry date	Nov 12, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12Y301/03
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

The present invention relates to the field of genetic engineering, in particular, the present invention relates to a method for producing a phytase variant with an improved thermal stability, and a phytase variant and the use thereof. The phytase variant contains at least one proline modification, compared to the phytase from Escherichia coli and other mutants thereof. The phytase variants with the modification have preferably improved properties, such as the thermal stability, optimal reaction temperature, pH property, specific activity, protease resistance and performance in animal feeds.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.