NOVELTY - An isolated polypeptide (P1) having cellobiohydrolase activity, is new.    USE - The isolated polypeptide (P1) is useful for degrading or converting cellulosic material, producing fermentation product, and fermenting cellulosic material (all claimed). The fermentation product includes alcohol (e.g. ethanol, methanol, ethylene glycol, glycerol and n-butanol), alkane (e.g. pentane, hexane and heptane), cycloalkane (cyclopentane, cyclohexane and cycloheptane), amino acid (e.g. aspartic acid, glutamic acid and serine), gas (e.g. methane and hydrogen), ketone (e.g. acetone), organic acid (e.g. acetic acid and citric acid), and polyketide.    ADVANTAGE - The isolated polypeptide (P1) enables to produce high value products.    DETAILED DESCRIPTION - An isolated polypeptide (P1) having cellobiohydrolase activity and chosen from (a) polypeptide exhibiting at least 85% sequence identity to mature polypeptide comprising an amino acid sequence of SEQ ID NO: 2, (b) polypeptide encoded by a polynucleotide capable of hybridizing under at least high stringency conditions with mature polypeptide coding base pair sequence of SEQ ID NO: 1, or its cDNA or full-length complementary sequence, (c) polypeptide encoded by a polynucleotide exhibiting at least 85% sequence identity to the mature polypeptide coding base pair sequence of SEQ ID NO: 1 or its cDNA sequence, (d) variant of the mature polypeptide comprising amino acid sequence of SEQ ID NO: 2 having substitution, deletion, and/or insertion at one or more positions, and (e) fragment of the above-cited polypeptides having cellobiohydrolase activity, is new. Sequences not defined here may be found at ftp://ftp.wipo.int/pub/published_pct_sequences/publication. INDEPENDENT CLAIMS are included for the following:    (1) isolated polynucleotide (N1) encoding the polypeptide;    (2) recombinant host cell comprising the polynucleotide (N1) operably linked to one or more control sequences that direct the production of the polypeptide;    (3) method of producing the polypeptide (P1) having cellobiohydrolase activity;    (4) transgenic plant, plant portion or plant cell transformed with the polynucleotide encoding the polypeptide;    (5) method of producing mutant of parent cell, involves inactivating the polynucleotide encoding the polypeptide to obtain mutant producing less of the polypeptide than the parent cell;    (6) double-stranded inhibitory RNA (dsRNA) molecule comprising a subsequence of the polynucleotide (N1), where optionally the dsRNA is small interfering RNA (siRNA) or microRNA (miRNA) molecule;    (7) method of inhibiting the expression of polypeptide (P1) having cellobiohydrolase activity in a cell, involves administering to the cell or expressing in the cell the double-stranded inhibitory RNA (dsRNA) molecule;    (8) isolated polynucleotide (N2) encoding signal peptide comprising 1-17 amino acids residues in amino acid sequence of SEQ ID NO: 2;    (9) recombinant host cell comprising gene encoding protein operably linked to the polynucleotide (N2), where the gene is foreign to the polynucleotide encoding the signal peptide;    (10) process of producing a protein, involves (a) cultivating a recombinant host cell comprising a gene encoding a protein operably linked to the polynucleotide (N2), and (b) recovering the protein;    (11) whole broth formulation or cell culture composition comprising the polypeptide (P1);    (12) process for degrading or converting a cellulosic material, involves treating the cellulosic material with an enzyme composition in the presence of the polypeptide having cellobiohydrolase activity;    (13) process for producing fermentation product, involves saccharifying a cellulosic material with an enzyme composition in the presence of the polypeptide (P1), fermenting the saccharified cellulosic material with one or more fermenting microorganisms to produce the fermentation product, and recovering the fermentation product from the fermentation; and    (14) process of fermenting a cellulosic material, involves fermenting the cellulosic material with one or more fermenting microorganisms, where the cellulosic material is saccharified with an enzyme composition in the presence of polypeptide (P1).