3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy- 6-[2-[(2R,3S,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)- 3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl]-4,5-dihydroxyoxan-3-yl]-5-methylhex-2-enamide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Tunicamycin is a mixture of homologous nucleoside antibiotics that inhibits the UDP-HexNAc: polyprenol-P HexNAc-1-P family of enzymes. In eukaryotes, this includes the enzyme GlcNAc phosphotransferase (GPT), which catalyzes the transfer of N-acetylglucosamine-1-phosphate from UDP-N-acetylglucosamine to dolichol phosphate in the first step of glycoprotein synthesis. Tunicamycin blocks N-linked glycosylation (N-glycans) and causes cell cycle arrest in G1 phase. It is used as an experimental tool in biology, e.g. to induce unfolded protein response. Tunicamycin is produced by several bacteria, including Streptomyces clavuligerus and Streptomyces lysosuperficus.
Tunicamycin homologues have varying molecular weights owing to the variability in fatty acids side chain conjugates.
- Glycosylation - tunicamycin blocks all N-glycosylation of proteins
- Streptomyces the genus
- Hepatitis C virus envelope proteins regulate CHOP via induction of ...
-  Tunicamycin product details]