Accepted name: keratan sulfotransferase
Reaction: 3′-phosphoadenylyl sulfate + keratan = adenosine 3′,5′-bisphosphate + keratan 6′-sulfate
Glossary: 3′-phosphoadenylyl sulfate = PAPS
Other name(s): 3′-phosphoadenylyl keratan sulfotransferase; keratan sulfate sulfotransferase; 3′-phosphoadenylylsulfate:keratan sulfotransferase; 3′-phosphoadenylyl-sulfate:keratan 6′-sulfotransferase
Systematic name: 3′-phosphoadenylyl-sulfate:keratan 6′-sulfonotransferase
Comments: Sulfation takes place at the 6-position of galactosyl and N-acetylglucosaminyl residues in keratan, a proteoglycan. Not identical with EC (chondroitin 4-sulfotransferase), EC (choline sulfotransferase) or EC (chondroitin 6-sulfotransferase).
1.  Ruter, E.-R. and Kresse, H. Partial purification and characterization of 3′-phosphoadenylylsulfate:keratan sulfate sulfotransferases. J. Biol. Chem. 259 (1984) 11771–11776. [PMID: 6592165]
[EC created 1989]