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