ID 2.8.2.7 DE UDP-N-acetylgalactosamine-4-sulfate sulfotransferase. CA 3'-phosphoadenylyl sulfate + UDP-N-acetyl-D-galactosamine 4-sulfate = CA adenosine 3',5'-bisphosphate + UDP-N-acetyl-D-galactosamine 4,6- CA bissulfate. //