Protease
US5312748A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1988 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Aug 30, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N9/52
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Novel alkaline serine proteases produced by Nocardiopsis sp. strains, for example by aerobic cultivation of strain 10R (NRRL-18262) and Nocardiopsis dassonvillei strain M58-1 (NRRL 18133), the proteases being characterized by a pH optimum of about 8, and by retention of at least 60% of maximum activity at pH 7-11 measured with casein as substrate. The proteases of the invention may be distinguished from the known protease of the Nocardiopsis strain ZIMET 43647 (of East German 2004328) and known Bacillus and fungal alkaline proteases. The Alkaline proteases of strains 10R and M58-1 may also be distinguished from each other. The protease preparations of this invention are useful detergent additives for cold water laundering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.