发明名称 |
Oxidativley stable alpha-amylase |
摘要 |
Novel alpha-amylase mutants derived from the DNA sequences of naturally occurring or recombinant alpha-amylases are disclosed. The mutant alpha-amylases, in general, are obtained by in vitro modifications of a precursor DNA sequence encoding the naturally occurring or recombinant alpha-amylase to generate the substitution (replacement) or deletion of one or more oxidizable amino acid residues in the amino acid sequence of a precursor alpha-amylase. Such mutant alpha-amylases have altered oxidative stability and/or altered pH performance profiles and/or altered thermal stability as compared to the precursor. Also disclosed are detergent and starch liquefaction compositions comprising the mutant amylases, as well as methods of using the mutant amylases.
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申请公布号 |
US5824532(A) |
申请公布日期 |
1998.10.20 |
申请号 |
US19950468220 |
申请日期 |
1995.06.06 |
申请人 |
GENENCOR INTERNATIONAL, INC. |
发明人 |
BARNETT, CHRISTOPHER C.;MITCHINSON, COLIN;POWER, SCOTT D.;REQUADT, CAROL A. |
分类号 |
C12N15/09;C11D3/386;C12N1/21;C12N5/10;C12N9/26;C12N9/28;C12N15/56;C12N15/75;C12P19/14;(IPC1-7):C12N15/56;C12N15/63 |
主分类号 |
C12N15/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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