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Methods for enhancing the degradation or conversion of cellulosic material

  • US 20070077630A1
  • Filed: 09/29/2006
  • Published: 04/05/2007
  • Est. Priority Date: 09/30/2005
  • Status: Active Grant
First Claim
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1. A method for degrading or converting a cellulosic material, comprising:

  • treating the cellulosic material with an effective amount of one or more cellulolytic proteins in the presence of an effective amount of a polypeptide having cellulolytic enhancing activity, wherein the presence of the polypeptide having cellulolytic enhancing activity increases the degradation of cellulosic material compared to the absence of the polypeptide having cellulolytic enhancing activity and wherein the polypeptide having cellulolytic enhancing activity is selected from the group consisting of;

    (a) a polypeptide comprising an amino acid sequence which has at least 70% identity with the mature polypeptide of SEQ ID NO;

    2;

    (b) a polypeptide encoded by a polynucleotide which hybridizes under at least medium stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO;

    1, (ii) the genomic DNA sequence comprising the mature polypeptide coding sequence of SEQ ID NO;

    1, or (iii) a complementary strand of (i) or (ii);

    (c) a polypeptide comprising [ILMV]-P-x(4,5)-G-x-Y-[ILMV]-x-R-x-[EQ]-x(3)-A-[HNQ], wherein x is any amino acid, x(4,5) is any amino acid at 4 or 5 contiguous positions, and x(3) is any amino acid at 3 contiguous positions; and

    (d) a variant comprising a conservative substitution, deletion, and/or insertion of one or more amino acids of the mature polypeptide of SEQ ID NO;

    2.

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