Patent · US Expired

Chimeric enzymes

US5234823A · kind A · utility

4Cited by
0References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 26, 1990
Grant dateAug 10, 1993
Priority date
Expiry dateOct 26, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12P19/14
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

Chimeric alpha-amylases are disclosed of the formula EQU Q--R--L in which Q is a N-terminal polypeptide residue of from 55 to 60 amino acid residues which is at least 75 percent homologous to the 55 N-terminal amino acid residues in the Bacillus amyloliquefaciens alpha-amylase as described in Takkinen et al., J. Biol. Chem. 258 (1983) 1007-1013, PA0 R is a polypeptide residue of the general formula ##STR1## L comprises a C-terminal polypeptide of from 390 to 400 amino acid residues which is at least 75 percent holologous to the 395 C-terminal amino acid residues in the Bacillus licheniformis 584 (ATCC 27811) alpha-amylase.

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