| 主权项 |
1. An isolated polypeptide having xylanase activity, selected from the group consisting of:
(a) a polypeptide having at least 60% sequence identity to the mature polypeptide of SEQ ID NO: 2; at least 65% sequence identity to the mature polypeptide of SEQ ID NO: 12; at least 70% sequence identity to the mature polypeptide of SEQ ID NO: 4 or SEQ ID NO: 10; at least 75% sequence identity to the mature polypeptide of SEQ ID NO: 14 or SEQ ID NO: 16; at least 80% sequence identity to the mature polypeptide of SEQ ID NO: 6 or SEQ ID NO: 8; at least 85% sequence identity to the mature polypeptide of SEQ ID NO: 20; or at least 90% sequence identity to the mature polypeptide of SEQ ID NO: 18; (b) a polypeptide encoded by a polynucleotide that hybridizes under at least medium-high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 1, SEQ ID NO: 3, SEQ ID NO: 9, or SEQ ID NO: 11, (ii) the cDNA sequence of SEQ ID NO: 1, SEQ ID NO: 3, SEQ ID NO: 9, or SEQ ID NO: 11, or (iii) the full-length complement of (i) or (ii); or at least high stringency conditions with (i) the mature polypeptide coding sequence of SEQ ID NO: 5, SEQ ID NO: 7, SEQ ID NO: 13, SEQ ID NO: 15, SEQ ID NO: 17, or SEQ ID NO: 19, (ii) the cDNA sequence of SEQ ID NO: 5, SEQ ID NO: 13, SEQ ID NO: 17, or SEQ ID NO: 19, or (iii) the full-length complement of (i) or (ii); (c) a polypeptide encoded by a polynucleotide having at least 60% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 1 or the cDNA sequence thereof; at least 65% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 11 or the cDNA sequence thereof; at least 70% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 3 or the cDNA sequence thereof or the mature polypeptide coding sequence of SEQ ID NO: 9 or the cDNA sequence thereof; at least 75% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 13 or the cDNA sequence thereof or the mature polypeptide coding sequence of SEQ ID NO: 15; at least 80% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 5 or the cDNA sequence thereof or the mature polypeptide coding sequence of SEQ ID NO: 7; at least 85% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 19 or the cDNA sequence thereof; or at least 90% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 17 or the cDNA sequence thereof; (d) a variant of the mature polypeptide of SEQ ID NO: 2, SEQ ID NO: 4, SEQ ID NO: 6, SEQ ID NO: 8, SEQ ID NO: 10, SEQ ID NO: 12, SEQ ID NO: 14, SEQ ID NO: 16, SEQ ID NO: 18, or SEQ ID NO: 20 comprising a substitution, deletion, and/or insertion at one or more (e.g., several) positions; and (e) a fragment of the polypeptide of (a), (b), (c), or (d) that has xylanase activity. |
