Polypeptides Having Endoglucanase Activity and Polynucleotides Encoding Same

An isolated polypeptide having endoglucanase activity, selected from the group consisting of:

• (a) a polypeptide having at least 70% sequence identity to the mature polypeptide of SEQ ID NO:
• 2, a polypeptide having at least 75% sequence identity to the mature polypeptide of SEQ ID NO:
• 4;
• or a polypeptide having at least 88% sequence identity to the mature polypeptide of SEQ ID NO:
• 6;
• (b) a polypeptide encoded by a polynucleotide having at least 70% sequence identity to the mature polypeptide coding sequence of SEQ ID NO:
• 1, a polypeptide encoded by a polynucleotide having at least 75% sequence identity to the mature polypeptide coding sequence of SEQ ID NO:
• 3, or a polypeptide encoded by a polynucleotide having at least 88% sequence identity to the mature polypeptide coding sequence of SEQ ID NO:
• 5;
• (c) a polypeptide encoded by a polynucleotide that hybridizes under medium stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO:
• 1, the mature polypeptide coding sequence of SEQ ID NO:
• 3, or the mature polypeptide coding sequence of SEQ ID NO:
• 5, (ii) the cDNA sequence of SEQ ID NO:
• 1, the cDNA sequence of SEQ ID NO:
• 3, or the cDNA sequence of SEQ ID NO:
• 5, or (iii) the full-length complement of (i) or (ii);
• (d) a variant of the mature polypeptide of SEQ ID NO:
• 2, a variant of the mature polypeptide of SEQ ID NO:
• 4, or a variant of the mature polypeptide of SEQ ID NO:
• 6, comprising a substitution, deletion, and/or insertion at one or more (e.g., several) positions, wherein the variant has endoglucanase activity;
• and
• (e) a fragment of a polypeptide of (a), (b), (c) or (d) that has endoglucanase activity.

An isolated polypeptide comprising a catalytic domain selected from the group consisting of:

• (a) a catalytic domain having at least 70% sequence identity to amino acids 18 to 414 of SEQ ID NO:
• 2;
• a catalytic domain having at least 75% sequence identity to amino acids 26 to 400 of SEQ ID NO:
• 4;
• or a catalytic domain having at least 88% sequence identity to amino acids 21 to 422 of SEQ ID NO:
• 6;
• (b) a catalytic domain encoded by a polynucleotide having at least 70% sequence identity to nucleotides 52 to 1242 of SEQ ID NO:
• 1, a catalytic domain encoded by a polynucleotide having at least 75% sequence identity to nucleotides 76 to 1200 of SEQ ID NO:
• 3;
• or a catalytic domain encoded by a polynucleotide having at least 88% sequence identity to nucleotides 61 to 1358 of SEQ ID NO:
• 5;
• (c) a catalytic domain encoded by a polynucleotide that hybridizes under medium stringency conditions with (i) nucleotides 52 to 1242 of SEQ ID NO:
• 1, nucleotides 76 to 1200 of SEQ ID NO:
• 3 or nucleotides 61 to 1358 of SEQ ID NO:
• 5, (ii) the cDNA sequence thereof, or (iii) the full-length complement of (i) or (ii);
• (d) a variant of amino acids 18 to 414 of SEQ ID NO:
• 2, a variant of amino acids 26 to 400 of SEQ ID NO:
• 4, or a variant of amino acids 21 to 422 of SEQ ID NO:
• 6, comprising a substitution, deletion, and/or insertion at one or more (e.g., several) positions, wherein the variant has endoglucanase activity;
• and
• (e) a fragment of a catalytic domain of (a), (b), (c) or (d), which has endoglucanase activity.

An isolated polypeptide comprising a carbohydrate binding domain selected from the group consisting of:

• (a) a carbohydrate binding domain having at least 75% sequence identity to amino acids 427 to 463 of SEQ ID NO:
• 4;
• (b) a carbohydrate binding domain encoded by a polynucleotide having at least 75% sequence identity to nucleotides 1279 to 1389 of SEQ ID NO:
• 3;
• (c) a carbohydrate binding domain encoded by a polynucleotide that hybridizes under medium stringency conditions with (i) nucleotides 1279 to 1389 of SEQ ID NO:
• 3, (ii) the cDNA sequence thereof, or (iii) the full-length complement of (i) or (ii);
• (d) a variant of amino acids 427 to 463 of SEQ ID NO:
• 4, comprising a substitution, deletion, and/or insertion at one or more (e.g., several) positions, wherein the variant has carbohydrate binding activity;
• and
• (e) a fragment of the carbohydrate binding domain of (a), (b), (c) or (d), which has carbohydrate binding activity.