Sulfation of a variety of molecules, including glycoproteins, proteoglycans, and glycolipids, requires 3-prime phosphoadenosine 5-prime phosphosulfate (PAPS), a high-energy form of the universal sulfate donor. SLC35B3 translocates PAPS from the cytosol or nucleus, where it is synthesized, to the Golgi lumen for use (Kamiyama et al., 2006 [PubMed 16492677]).[supplied by OMIM, Mar 2008]

