Patent · US Expired

Alkaline protease variants

US7320887B2 · kind B2 · utility

30Cited by

49References

19Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Beatrix Kottwitz · Erkrath, DE
Karl-Heinz Maurer · Erkrath, DE
Roland Breves · Mettmann, DE

Key dates

Filing date	Apr 30, 2004
Grant date	Jan 22, 2008
Priority date	—
Expiry date	Mar 25, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D3/38681
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

The invention relates to novel alkaline protease variants. These variants have, when enumerating the alkaline protease from Bacillus lentus, variations in amino acid position 61, positions 199 and/or 211 and, optionally, at least one modification that contributes to the stabilization of the molecule, said modification preferably being point mutations in positions 3 and/or 4. Particularly preferred are variants S3T/V41/G61A/V199] and S3T/V41/G61A/V1991/L211D of B. lentus alkaline protease. The invention also relates to the possible use of these enzymes in diverse technical processes and, in particular, to detergents and cleansers containing these novel alkaline protease variants.

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