Customized proteases
US6187579A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1994 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Oct 27, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P21/02
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention provides customized proteases (i.e., mutant enzymes), methods of making customized proteases, as well as methods of using customized proteases. The customized proteases of the invention are derived from the known proteases. Altered transacylation reactions include the capability to perform transacylation reactions not substantially catalyzed by the known protease or the capability to perform transacylation reactions with improved yields, or both. The methods of the invention provide for customized proteases through site specific or random mutagenesis of the active site amino acids of the known proteases. The invention also provides for methods of using the customized proteases to prepare a preselected transacylation products. The preselected transacylation products produced can be modified by substitution at the N-or C-terminal with nucleophiles such as L-amino acids, D-amino acids, amino acid amides, and radioactive amino acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.