Modification of xylanases to increase thermophilicity, thermostability and alkalophilicity

Modification of xylanases to increase thermophilicity, thermostability and alkalophilicity

  • CN 101,460,615 B
  • Filed: 04/10/2007
  • Issued: 04/29/2015
  • Est. Priority Date: 04/12/2006
  • Status: Active Grant
First Claim
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1. the family 11 zytase modified, described zytase comprise be positioned at position 40 be selected from Arg, Cys, Phe, the replacement amino acid of Tyr and His, with the intramolecular disulfide bond that the amino acid by being positioned at position 99 and/or 118 with halfcystine displacement produces, described position determines by the family 11 zytase of described modification is carried out sequence alignment with Trichodermareesei (Trichoderma reesei) the xylanase II amino acid sequence as defined in SEQ ID NO:

  • 16, the family 11 zytase of wherein said modification shows the thermophilic of enhancing compared with deriving its corresponding parent'"'"'s family 11 zytase, basophilia, thermostability or there is the combination of above character, the aminoacid sequence of described parent'"'"'s family 11 zytase is SEQ ID NO;

    16.

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