Ready-to-use ELISA kits are available for the detection of 3OST4, an alias of the protein, heparan sulfate-glucosamine 3-sulfotransferase 4. The official gene symbol is HS3ST4. The protein has a mass of 49.8 kDa and length of 456 residues. It is a member of the Sulfotransferase 1 family and may be known by other names, including: 3OST4, 30ST4, heparan sulfate D-glucosaminyl 3-O-sulfotransferase 4, heparan sulfate 3-O-sulfotransferase 4, and heparan sulfate glucosamine 3-O-sulfotransferase 4.