Thiazole synthase (EC 2.8.1.10, thiG (gene)) is an enzyme with systematic name 1-deoxy-D-xylulose 5-phosphate:thiol sulfurtransferase.[1][2][3][4][5][6] This enzyme catalyses the following chemical reaction

Thiazole synthase
Thiazole synthase oktamer, Saccharomyces cerevisiae
Identifiers
EC no.2.8.1.10
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
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PMCarticles
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NCBIproteins
1-deoxy-D-xylulose 5-phosphate + 2-iminoacetate + thiocarboxy-adenylate-[sulfur-carrier protein ThiS] 2-[(2R,5Z)-2-carboxy-4-methylthiazol-5(2H)-ylidene]ethyl phosphate + [sulfur-carrier protein ThiS] + 2 H2O

H2S can provide the sulfur in vitro.

References

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  1. ^ Park JH, Dorrestein PC, Zhai H, Kinsland C, McLafferty FW, Begley TP (October 2003). "Biosynthesis of the thiazole moiety of thiamin pyrophosphate (vitamin B1)". Biochemistry. 42 (42): 12430–8. doi:10.1021/bi034902z. PMID 14567704.
  2. ^ Dorrestein PC, Zhai H, McLafferty FW, Begley TP (October 2004). "The biosynthesis of the thiazole phosphate moiety of thiamin: the sulfur transfer mediated by the sulfur carrier protein ThiS". Chemistry & Biology. 11 (10): 1373–81. doi:10.1016/j.chembiol.2004.08.009. PMID 15489164.
  3. ^ Dorrestein PC, Zhai H, Taylor SV, McLafferty FW, Begley TP (March 2004). "The biosynthesis of the thiazole phosphate moiety of thiamin (vitamin B1): the early steps catalyzed by thiazole synthase". Journal of the American Chemical Society. 126 (10): 3091–6. doi:10.1021/ja039616p. PMID 15012138.
  4. ^ Settembre EC, Dorrestein PC, Zhai H, Chatterjee A, McLafferty FW, Begley TP, Ealick SE (September 2004). "Thiamin biosynthesis in Bacillus subtilis: structure of the thiazole synthase/sulfur carrier protein complex". Biochemistry. 43 (37): 11647–57. doi:10.1021/bi0488911. PMID 15362849.
  5. ^ Hazra A, Chatterjee A, Begley TP (March 2009). "Biosynthesis of the thiamin thiazole in Bacillus subtilis: identification of the product of the thiazole synthase-catalyzed reaction". Journal of the American Chemical Society. 131 (9): 3225–9. doi:10.1021/ja806752h. PMC 2765510. PMID 19216519.
  6. ^ Hazra AB, Han Y, Chatterjee A, Zhang Y, Lai RY, Ealick SE, Begley TP (June 2011). "A missing enzyme in thiamin thiazole biosynthesis: identification of TenI as a thiazole tautomerase". Journal of the American Chemical Society. 133 (24): 9311–9. doi:10.1021/ja1110514. PMC 3116082. PMID 21534620.
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