Protein
Unsaturated chondroitin disaccharide hydrolase
Organism
Streptococcus agalactiae serotype III (strain NEM316)
Function
Catalyzes the hydrolysis of unsaturated hyaluronate and chondroitin disaccharides. Also degrades unsaturated heparin disaccharides. Releases 4-deoxy-4,5-didehydro D-glucuronic acid or 4-deoxy-4,5-didehydro L-iduronic acid from chondroitin disaccharides, hyaluronan disaccharides and heparin disaccharides and cleaves both glycosidic (1->3) and (1->4) bonds. Prefers sulfated glycosaminoglycans compared to unsulfated glycosaminoglycans. Probably required for mammalian cells invasion through the degradation of extracellular sulfated glycosaminoglycans such as chondroitin and hyaluronan.
Similarity
Belongs to the glycosyl hydrolase 88 family.
Sequence
MMKIKPVKVESIENPKRFLNSRLLTKIEVEEAIEKALKQLYINIDYFGEEYPTPATFNNIYKVMDNTEWTNGFWTGCLWLAYEYNQDKKLKNIAHKNVLSFLNRINNRIALDHHDLGFLYTPSCTAEYRINGDVKALEATIKAADKLMERYQEKGGFIQAWGELGYKEHYRLIIDCLLNIQLLFFAYEQTGDEKYRQVAVNHFYASANNVVRDDSSAFHTFYFDPETGEPLKGVTRQGYSDESSWARGQAWGIYGIPLSYRKMKDYQQIILFKGMTNYFLNRLPEDKVSYWDLIFTDGSGQPRDTSATATAVCGIHEMLKYLPEVDPDKETYKYAMHTMLRSLIEQYSNNELIAGRPLLLHGVYSWHSGKGVDEGNIWGDYYYLEALIRFYKDWELYW