Patent ID: 7354741

Claim:
A method for producing a saccharide chain-extended chondroitin, the method comprising the step of (a) or (b): (a) transferring GalNac from UDP-GalNAc to chondroitin by use of a protein comprising the amino acid sequence from amino acid numbers 47-802 in SEQ ID NO: 2, (wherein UDP is uridine 5â€² diphosphate, and GalNac is N-acetylgalactosamine residue), (b) transferring GlcUA from UDP-GlcUA to chondroitin by use of a protein comprising the amino acid sequence from amino acid numbers 47-802 in SEQ ID NO: 2, (wherein UDP is uridine 5â€² diphosphate, and GlcUA is glucuronic acid residue).