|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 18.104.22.168
Enzymes and Genes:
|Escherichia coli K-12 substr. MG1655 :||tyrosine lyase
In Pathway: thiazole biosynthesis I (E. coli)
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.
Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.
Mass balance status: Balanced.
Enzyme Commission Primary Name: 2-iminoacetate synthase
Enzyme Commission Synonyms: thiH (gene name)
Standard Gibbs Free Energy (ΔrG'° in kcal/mol): -47.847656 [Latendresse13]
Enzyme Commission Summary:
Binds a [4Fe-4S] cluster that is coordinated by 3 cysteines and an exchangeable S-adenosyl-L-methionine molecule. The first stage of catalysis is reduction of the S-adenosyl-L-methionine to produce methionine and a 5-deoxyadenosin-5-yl radical that is crucial for the conversion of the substrate. Part of the pathway for thiamine biosynthesis.
Unification Links: Rhea:26364
Kriek07: Kriek M, Martins F, Leonardi R, Fairhurst SA, Lowe DJ, Roach PL (2007). "Thiazole synthase from Escherichia coli: an investigation of the substrates and purified proteins required for activity in vitro." J Biol Chem 282(24);17413-23. PMID: 17403671
Kriek07a: Kriek M, Martins F, Challand MR, Croft A, Roach PL (2007). "Thiamine biosynthesis in Escherichia coli: identification of the intermediate and by-product derived from tyrosine." Angew Chem Int Ed Engl 46(48);9223-6. PMID: 17969213
Leonardi03: Leonardi R, Fairhurst SA, Kriek M, Lowe DJ, Roach PL (2003). "Thiamine biosynthesis in Escherichia coli: isolation and initial characterisation of the ThiGH complex." FEBS Lett 539(1-3);95-9. PMID: 12650933
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