Patent · US Expired

Cephalosporin acetylhydrolase gene and protein encoded by said gene

US5338676A · kind A · utility

77Cited by
1References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 25, 1992
Grant dateAug 16, 1994
Priority date
Expiry dateNov 25, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12R2001/125
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

A cephalosporin acetylhydrolase gene, a recombinant DNA molecule prepared by introducing said gene into a vector used in an E. coli host-vector system, E. coli cells transfomed with said recombinant DNA molecule, a protein having the amino acid sequence encoded by said gene, an enzyme which is a multimer of said protein, and a process for preparing said protein or enzyme are provided, said cephalosporin acetylhydrolase being an enzyme useful for converting cephalosporins such as cephalosporin C and 7-ACA into deacetylated ones such as deacetylcephalosporin C and deacetyl 7-ACA which are useful as an intermediate for preparing a variety of derivatized cephalosporin antibiotics.

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