Heparan sulfate glucosamine 3-O-sulfotransferase 1, also known as HS3ST1, is sulfotransferase that utilizes 3-phospho-5-adenylyl sulfate (PAPS) to catalyze the transfer of a sulfo group to position 3 of glucosamine residues in heparan. This protein catalyzes the rate limiting step in the biosynthesis of heparan sulfate (HSact). This modification is a crucial step in the biosynthesis of anticoagulant heparan sulfate as it completes the structure of the antithrombin pentasaccharide binding site. Source: Recombinant protein corresponding to human aa21-307 from HS3ST1, fused to His-tag at N-terminal expressed in E. coli. Molecular Weight: ~36.2kD (310aa) AA Sequence: MGSSHHHHHH SSGLVPRGSH MGSRPAELGQ QELLRKAGTL QDDVRDGVAP NGSAQQLPQT IIIGVRKGGT RALLEMLSLH PDVAAAENEV HFFDWEEHYS HGLGWYLSQM PFSWPHQLTV EKTPAYFTSP KVPERVYSMN PSIRLLLILR DPSERVLSDY TQVFYNHMQK HKPYPSIEEF LVRDGRLNVD YKALNRSLYH VHMQNWLRFF PLRHIHIVDG DRLIRDPFPE IQKVERFLKL SPQINASNFY FNKTKGFYCL RDSGRDRCLH ESKGRAHPQV DPKLLNKLHE YFHEPNKKFF ELVGRTFDWH Storage and Stability: May be stored at 4C for short-term only. Aliquot to avoid repeated freezing and thawing.. Store at -20C. Aliquots are stable for 6 months after receipt at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
