MGAT5 (mannosyl (a-1,6-)-glycoprotein ß-1,6-N-acetyl-glucosaminyltransferase) is a glycosyltransferase, which resides in the golgi apparatus. This gene maps to human chromosome 2q21 and has an open reading frame (ORF) of 2349bp. It is expressed ubiquitously, with the exception of skeletal muscle. Also its expression levels in brain are low.
Synonyms: Anti-GNT-V; Anti-KIAA0773; Anti-mannosyl (alpha-1,6-)-glycoprotein beta-1,6-N-acetyl-glucosaminyltransferase
Storage: -20C
Application: All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry. The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.
Biochem Physiol Actions: MGAT5 (mannosyl (a-1,6-)-glycoprotein ß-1,6-N-acetyl-glucosaminyltransferase) catalyzes the addition of ß1-6 N-acetylglucosamine branches on asparagine (N)-linked oligosaccharides (N-glycan), present on cell proteins. It catalyzes the transfer of N-acetylglucosamine (GlcNAc) to ß1,6-linked mannosyl residue, at their C-6 position, within the trimannosyl core structure of N-glycans, which are complex in nature. This produces GlcNAc(ß1,6)[GlcNAcß1,2] mannose (Man) (a1,6). Dysregulation of this enzyme is associated with many cancers. The expression of MGAT5 in gastric cancer is related to metastasis, tumor grade and stage and prognosis. It is also down-regulated in ulcerative colitis (UC), which leads to disruption of N-glycosylation of T-cell receptor. Hence, MGAT5 plays a role in the pathogenesis of UC. The expression of MGAT5 is positively correlated with proliferation and metastasis of human hepatocellular carcinoma.
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