Enzymatic sulfation of galactose residue of keratan sulfate by chondroitin 6-sulfotransferase.
We have previously found that the purified chondroitin 6-sulfotransferase (C6ST), which transfers sulfate from 3'-phosphoadenosine 5'-phosphosulfate (PAPS) to position 6 of N-acetylgalactosamine in cho