Protein
Heparan sulfate glucosamine 3-O-sulfotransferase 4
Function
Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) to catalyze the transfer of a sulfo group to an N-unsubstituted glucosamine linked to a 2-O-sulfo iduronic acid unit on heparan sulfate. Unlike 3-OST-1, does not convert non-anticoagulant heparan sulfate to anticoagulant heparan sulfate (By similarity).
Similarity
Belongs to the sulfotransferase 1 family.
Sequence
MARWPAPPPPPPPPPPLAAPPPPGASAKGPPARKLLFMCTLSLSVTYLCYSLLGGSGSLQFPLALQESPGAAAEPPPSPPPPSLLPTPVRLGAPSQPPAPPPLDNASHGEPPEPPEQPAAPGTDGWGLPSGGGGAQDAWLRTPLAPSEMITAQSALPEREAQESSTTDEDLAGRRAANGSSERGGAVSTPDYGEKKLPQALIIGVKKGGTRALLEAIRVHPDVRAVGVEPHFFDRNYEKGLEWYRNVMPKTLDGQITMEKTPSYFVTNEAPKRIHSMAKDIKLIVVVRNPVTRAISDYTQTLSKKPEIPTFEVLAFKNRTLGLIDASWSAIRIGIYALHLENWLQYFPLSQILFVSGERLIVDPAGEMAKVQDFLGLKRVVTEKHFYFNKTKGFPCLKKPEDSSAPRCLGKSKGRTHPRIDPDVIHRLRKFYKPFNLMFYQMTGQDFQWEQEEGDK