Patent · US Expired

Microorganism, use thereof and process for the production of L-.alpha.-amino acids

US5714355A · kind A · utility

10Cited by

3References

5Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Fritz Wagner · Kronach, DE
Britta Hantke · Braunschweig, DE
Thomas Wagner · Konstanz, DE
Karlheinz Drauz · Alzenau, DE
Andreas Bommarius · Frankfurt, DE

Key dates

Filing date	May 29, 1996
Grant date	Feb 3, 1998
Priority date	—
Expiry date	May 29, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S435/83
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

DSM 9771 is a mutant of DSM 7330 which was obtained under selective pressure. Its enzymatic activity is higher by a factor of 2.3 than that of its parent organism. In the presence of an inducer, this activity may be farther increased by a factor of 2.7. The reaction catalyzed by this microorganism or enzymes therefrom is the enantioselective conversion of a D-5-monosubstituted hydantoin or an L-5-monosubstituted hydantoin or a D-N-carbamoyl amino acid or an L-N-carbamoyl amino acid to a corresponding L-.alpha.-amino acid.

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