Uridine diphosphate N-acetylgalactosamine or UDP-GalNAc is a nucleotide sugar composed of uridine diphosphate (UDP) and N-acetyl galactosamine (GalNAc). It is used by glycosyltransferases to transfer N-acetylgalactosamine residues to substrates.[1] UDP-GalNAc is an important building block for the production of glycoproteins and glycolipids in the body. It also serves as a precursor for the synthesis of mucin-type O-glycans, which are important components of mucus and play important roles in biological processes such as cell signaling, immune defense, and lubrication of the digestive tract.
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IUPAC name
Uridine 5′-(2-acetamido-2-deoxy-α-D-galactopyranosyl dihydrogen diphosphate)
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Systematic IUPAC name
O1-[(2R,3R,4R,5R,6R)-3-Acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl] O3-{[(2R,3S,4R,5R)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-3,4-dihydroxyoxolan-2-yl]methyl} dihydrogen diphosphate | |
Other names
UDP-N-acetylgalactosamine; UDP-GalNAc
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Identifiers | |
3D model (JSmol)
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3DMet | |
ChEBI | |
ChemSpider | |
KEGG | |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C17H27N3O17P2 | |
Molar mass | 607.355 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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See also
editReferences
edit- ^ "Uridine-diphosphate-n-acetylgalactosamine". pubchem.ncbi.nlm.nih.gov.
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