N-deacetylase and N-sulfotransferase 2 (NDST2)

N-deacetylase and N-sulfotransferase 2 (NDST2) is a bifunctional enzyme critical for the biosynthesis of heparan sulfate, a key glycosaminoglycan in animal tissues. NDST2 catalyzes two essential modifications: the N-deacetylation and N-sulfation of glucosamine residues within heparan sulfate precursors, enabling the polymer to serve as a substrate for further enzymatic processing and functional diversification. NDST2 is essential for controlling both the *quantity* and *structural pattern* of heparan sulfate by regulating chain elongation and the introduction of N-sulfate groups. It is especially important for heparin biosynthesis in mast cells, and its deficiency leads to abnormal mast cell phenotype and changes in connective tissue, but does not cause early lethality in mice (unlike the related NDST1 isoform). NDST2 is classified as a sulfotransferase and transferase enzyme, and is localized primarily to the Golgi apparatus. Clinical gene associations include rare connective tissue and bone disorders. There are currently no drugs specifically approved or recognized as interacting with NDST2, and its manipulation poses risks due to its broad role in extracellular matrix biology and tissue homeostasis.

Other names

Bifunctional heparan sulfate N-deacetylase/N-sulfotransferase 2Heparan sulfate N-deacetylase 2Heparan sulfate N-sulfotransferase 2HSST2NDST-2N-HSST 2NST2glucosaminyl N-deacetylase/N-sulfotransferase 2N-heparan sulfate sulfotransferase 2

Not applicable; no drugs specifically targeting NDST2 identified in search results. Hypothetically, inhibitors would reduce heparan sulfate N-sulfation and chain elongation.