General Description
Monoclonal Anti-β-
O-Linked
N-Acetylglucosamine (mouse IgM isotype) is derived from the hybridoma CTD110.6 produced by the fusion of mouse myeloma cells (P3X63-Ag8.653 cells) and cells from BALB/c mice immunized with a synthetic peptide YSPTS(
O-GlcNAc)PSK conjugated to KLH. This antibody recognizes
O-GlcNAc in β-
O-glycosidic linkage to both serine and threonine and does not cross react with α-linked Ser/Thr-
O-GlcNAc, α-linked Ser-
O-linked
N-acetylgalactosamine or
N-linked oligosaccharides on ovalbumin and immunoglobulin G.
O-linked
N-acetylglucosamine (GlcNAc) transferase (OGT) has 13.5 tetratricopeptide-repeats (TPR) and a globular catalytic domain. The gene encoding this protein is localized on human chromosome Xq13.1.
Biochem/physiol Actions
O-linked N-acetylglucosamine (GlcNAc) transferase (OGT) has a role in the addition of O-linked N-acetylglucosamine (O-GlcNAc) to serine/threonine residues in the protein of interest. It is crucial for O-GlcNAcylation of RNA polymerase II. Absence of OGT has been shown to reduce transcription and pol II promoter occupancy. The gene is upregulated in breast cancer tissues, colon cancer, lung cancer and laryngeal cancer. This protein might be associated with tumorigenesis and metastasis.
