NOVELTY - Isolated polypeptide having cellobiohydrolase activity from e.g. (a) a polypeptide having at least 90% sequence identity to the mature polypeptide of SEQ ID NO. 2 or a polypeptide having at least 80% sequence identity to the mature polypeptide of SEQ ID NO. 4; and (b) a polypeptide encoded by a polynucleotide having at least 90% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 1 or the cDNA sequence of it, is new, where sequences not defined here may be found at ftp://ftp.wipo.int/pub/published-pct-sequences/publication.    USE - The polypeptide is useful for: degrading or converting a cellulosic material; producing a fermentation product; and fermenting the cellulosic material (all claimed).    DETAILED DESCRIPTION - Isolated polypeptide having cellobiohydrolase activity from: (a) a polypeptide having at least 90% sequence identity to the mature polypeptide of SEQ ID NO. 2 or a polypeptide having at least 80% sequence identity to the mature polypeptide of SEQ ID NO. 4; (b) a polypeptide encoded by a polynucleotide having at least 90% sequence identity to the mature polypeptide coding sequence of SEQ ID NO: 1 or the cDNA sequence of it or a polypeptide encoded by a polynucleotide having at least 80% sequence identity to the mature polypeptide coding sequence of SEQ ID NO. 3 or the genomic DNA sequence of it; (c) a variant comprising a substitution, deletion and/or insertion of one or more amino acids of the mature polypeptide of SEQ ID NO. 2 or SEQ ID NO. 4; and (d) a fragment of the polypeptide of (a), (b), or (c) that has cellobiohydrolase activity, is new, where sequences not defined here may be found at ftp://ftp.wipo.int/pub/published-pct-sequences/publication. INDEPENDENT CLAIMS are included for:    (1) an isolated polypeptide comprising a catalytic domain including (aa) a catalytic domain having at least 90% sequence identity to the catalytic domain of SEQ ID NO. 2 or a catalytic domain having at least 80% sequence identity to the catalytic domain of SEQ ID NO. 4, (b) a catalytic domain encoded by a polynucleotide having at least 90% sequence identity to the catalytic domain coding sequence of SEQ ID NO. 1 or a catalytic domain encoded by a polynucleotide having at least 80% sequence identity to the catalytic domain coding sequence of SEQ ID NO. 3, (c) a variant of a catalytic domain comprising a substitution, deletion and/or insertion of one or more amino acids of the catalytic domain of SEQ ID NO. 2 or SEQ ID NO. 4, and (d) a fragment of a catalytic domain of (a), (b) or (c), which has cellobiohydrolase activity;    (2) a composition comprising the above polypeptide;    (3) an isolated polynucleotide encoding the above polypeptide;    (4) a nucleic acid construct or expression vector comprising the above polypeptide operably linked to one or more control sequences that direct the production of the polypeptide in an expression host;    (5) a recombinant host cell comprising the polynucleotide operably linked to one or more control sequences that direct the production of the polypeptide;    (6) preparation of the above polypeptide;    (7) degrading or converting a cellulosic material comprising treating the cellulosic material with an enzyme composition in the presence of the above polypeptide;    (8) producing a fermentation product comprising (i) saccharifying a cellulosic material with an enzyme composition in the presence of the above polypeptide, (ii) fermenting the saccharified cellulosic material with one or more fermenting microorganisms to produce fermentation product and (iii) recovering the fermentation product from the fermentation; and    (9) fermenting a cellulosic material comprising fermenting the cellulosic material with one or more fermenting microorganisms, where the cellulosic material is saccharified with an enzyme composition in the presence of the above polypeptide.