该基因编码一种酶，对软骨素的硫酸化进行催化，软骨素是一种存在于细胞外基质和大多数参与细胞迁移和分化的细胞中的蛋白多糖该基因突变与脊柱骨骺发育不良和肱骨骨髓炎有关。〔RefSeq，2009〕
This gene encodes an enzyme which catalyzes the sulfation of chondroitin, a proteoglycan found in the extracellular matrix and most cells which is involved in cell migration and differentiation. Mutations in this gene are associated with spondylepiphyseal dysplasia and humerospinal dysostosis. [provided by RefSeq, Mar 2009]