D-Glucuronyl C5-Epimerasel (GLCE) Antibody – Rabbit Polyclonal

Heparan sulfate (HS) is a negatively charged cell surface polysaccharide required for the biologic activities of circulating extracellular ligands. GLCE is responsible for epimerization of D-glucuronic acid (GlcA) to L-iduronic acid (IdoA) of HS, which endows the nascent polysaccharide chain with the ability to bind growth factors and cytokines (Ghiselli and Agrawal, 2005 [PubMed 15853773]).[supplied by OMIM, Jun 2008]

GLCE: Converts D-glucuronic acid residues adjacent to N- sulfate sugar residues to L-iduronic acid residues, both in maturing heparan sulfate (HS) and heparin chains. This is important for further modifications that determine the specificity of interactions between these glycosaminoglycans and proteins. Belongs to the D-glucuronyl C5-epimerase family.

Protein type: Glycan Metabolism - heparan sulfate biosynthesis; Isomerase; EC 5.1.3.17; Membrane protein, integral

Chromosomal Location of Human Ortholog: 15q23

Cellular Component: Golgi apparatus; Golgi membrane; integral to membrane

Molecular Function: heparosan-N-sulfate-glucuronate 5-epimerase activity; racemase and epimerase activity, acting on carbohydrates and derivatives; UDP-glucuronate 5'-epimerase activity

Biological Process: carbohydrate metabolic process; glycosaminoglycan biosynthetic process; glycosaminoglycan metabolic process; heparan sulfate proteoglycan biosynthetic process; heparin biosynthetic process