- Tunicamycin
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Tunicamycin (E)-N-[(2S,3R,4R,5R,6R)-2-[(2R,3R,4R,5S,6R)-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-enamideOther namesNSC 177382Identifiers CAS number 11089-65-9 PubChem 6433557 MeSH Tunicamycin ChEMBL CHEMBL505513 Jmol-3D images {{#if:CC(C)C\C=C\C(=O)N[C@@H]1[C@H]([C@H]([C@H](O[C@H]1O[C@@H]2[C@@H] ([C@H]([C@@H]([C@H](O2)CO)O)O)NC(=O)C)CC([C@@H]3[C@H]([C@H] ([C@@H](O3)N4C=CC(=O)NC4=O)O)O)O)O)O|Image 1
- CC(C)C\C=C\C(=O)N[C@@H]1[C@H]([C@H]([C@H](O[C@H]1O[C@@H]2[C@@H] ([C@H]([C@@H]([C@H](O2)CO)O)O)NC(=O)C)CC([C@@H]3[C@H]([C@H] ([C@@H](O3)N4C=CC(=O)NC4=O)O)O)O)O)O
Properties Molecular formula C39H64N4O16 Molar mass 840.0 g/mol Hazards R-phrases 28 S-phrases 28-37/39-45 (verify) (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox references Tunicamycin is 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-actelyglucosamine-1-phosphate from UDP-N-acetylglucosamine to dolichol phosphate in the first step of glycoprotein synthesis. Tunicamycin blocks the synthesis of all N-linked glycoproteins (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[1]. Tunicamycin is produced by several bacteria, including Streptomyces clavuligerus and Streptomyces Iysosuperficus.
See also
- Glycosylation - tunicamycin blocks all N-glycosylation of proteins
- Glycoprotein
- Streptomyces the genus
References
External links
- book section of Essentials in Glycobiology (1999) Tunicamycin: Inhibition of DOL-PP-GlcNAc Assembly
- Tunicamycin data sheet prepared by a student of the Open University, UK
- Tunicamycin product details of the company Sigma Aldrich
Categories:- Antibiotics
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