Subtilisin analogs
US4914031A · kind A · utility
72Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1987 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Apr 10, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N15/75
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A class of subtilisin analogs suitable for admixture to cleaning compositions and having improved stability over naturally occurring Bacillus subtilisins are prepared by expressing a modified gene encoding the subtilisin analog in Bacillus subtilis. The subtilisin analogs are characterized as having a modified calcium binding site to improve calcium binding and either an Asn or a Gly replaced in any Asn-Gly sequences present in the subtilisin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.