UDP-N-acetylgalactosamine-4-sulfate sulfotransferase; uridine diphosphoacetylgalactosamine 4-sulfate sulfotransferase; uridine diphospho-N-acetylgalactosamine 4-sulfate sulfotransferase; 3'-phosphoadenylyl-sulfate:UDP-N-acetyl-D-galactosamine-4-sulf • • •