Unnumbered Item
SO42- + ATP <=> Adenosine-5'-Phosphosulfate Adenosine-5'-Phosphosulfate + ATP <=> 3'-Phosphoadenosine-5'-Phosphosulfate (PAPS)
SO42- + ATP <=> Adenosine-5'-Phosphosulfate
Adenosine-5'-Phosphosulfate + ATP <=> 3'-Phosphoadenosine-5'-Phosphosulfate (PAPS)