dermatan 4'-sulfate + n 3'-phosphoadenylyl sulfate = dermatan 4',6'-bissulfate + n adenosine 3',5'-bisphosphate + n H(+)
dermatan 4'-sulfate + n 3'-phosphoadenylyl sulfate = dermatan 4',6'-bissulfate + n adenosine 3',5'-bisphosphate + n h(+)