Protein
Endoglucanase EG-II
Organism
Hypocrea jecorina (strain ATCC 56765 / BCRC 32924 / NRRL 11460 / Rut C-30)
Function
Endoglucanase (EG) that cleaves the internal beta-1,4-glucosidic bonds in cellulose. The degradation of cellulose involves an interplay between different cellulolytic enzymes. Hydrolysis starts with EGs, which cut internal glycosidic linkages to reduce the polymerization degree of the substrate and creates new chain ends for exocellobiohydrolases (CBHs). The CBH release the disaccharide cellobiose from the non-reducing end of the cellulose polymer chain. Finally, beta-1,4-glucosidases hydrolyze the cellobiose and other short cello-oligosaccharides into glucose units.
Similarity
Belongs to the glycosyl hydrolase 5 (cellulase A) family.
Sequence
MNKSVAPLLLAASILYGGAAAQQTVWGQCGGIGWSGPTNCAPGSACSTLNPYYAQCIPGATTITTSTRPPSGPTTTTRATSTSSSTPPTSSGVRFAGVNIAGFDFGCTTDGTCVTSKVYPPLKNFTGSNNYPDGIGQMQHFVNDDGMTIFRLPVGWQYLVNNNLGGNLDSTSISKYDQLVQGCLSLGAYCIVDIHNYARWNGGIIGQGGPTNAQFTSLWSQLASKYASQSRVWFGIMNEPHDVNINTWAATVQEVVTAIRNAGATSQFISLPGNDWQSAGAFISDGSAAALSQVTNPDGSTTNLIFDVHKYLDSDNSGTHAECTTNNIDGAFSPLATWLRQNNRQAILTETGGGNVQSCIQDMCQQIQYLNQNSDVYLGYVGWGAGSFDSTYVLTETPTGSGNSWTDTSLVSSCLARK