Disclosed are polypeptides having a cellbiohydrolase II activity comprising SEQ ID NO: 282 or sequences having at least 80% identity therewith or enzymatically active subsequence or fragments thereof. Further disclosed are polynucleotides encoding said cellbiohydrolase II polypeptides comprising SEQ ID NO: 281 or sequence having at least 80% identity therewith. Further disclosed are expression cassettes, vectors, cloning vectors, transformed/infected host cells, transgenic non-human animal or plant cells comprising said polypeptide or polynucleotides. SEQ ID NO: 281 MTVYQLLFTAALAGTALAAPLVEERQACASQWAQCGGFSWNGATCCQSGSYCSKINDYYSQCIPGEGPATSKTSTLPASTTTSKPTSTSTAGTSSTTKPPPAGSGTATYSGNPYSGVNLWANSYYRSEVTNLAIPKLSGAMATAAAKVADVPSYQWMDSFEHISLMEDTLVDIRKANQAGGNYAGQFVVYDLPDRDCAAAASNGEYSLDKDGANKYKNYINTIKKIIQSYSDIRILLVIEPDSLANLVTNMDVAKCAKAHDAYISLTNYAVTELNLPNVAMYLDAGHAGWLGWPNNQGPAAKLFASIYKDAGKPAALRGLATNVANYNAWSLSSAPPYTQGASIYDEKSFIHAMGPLLEQNGWPGAHFITDQGRSGKQPTGQIQWGDWCNSKGTGFGIRPSANTGDSLLDAFVWVKPGGESDGTSDTSATRYDYHCGASAALQPAPEAGTWFQAYFEQLLTNANPSFL