2-iminoacetate synthase

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2-iminoacetate synthase
Identifiers
EC no. 4.1.99.19
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
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NCBI proteins

2-iminoacetate synthase (EC 4.1.99.19, thiH (gene)) is an enzyme with systematic name L-tyrosine 4-methylphenol-lyase (2-iminoacetate-forming). [1] [2] [3] This enzyme catalyses the following chemical reaction

L-tyrosine + S-adenosyl-L-methionine + reduced acceptor 2-iminoacetate + 4-methylphenol + 5'-deoxyadenosine + L-methionine + acceptor + 2 H+

This enzyme binds a 4Fe-4S cluster.

References

  1. Leonardi R, Fairhurst SA, Kriek M, Lowe DJ, Roach PL (March 2003). "Thiamine biosynthesis in Escherichia coli: isolation and initial characterisation of the ThiGH complex". FEBS Letters. 539 (1–3): 95–9. Bibcode:2003FEBSL.539...95L. doi: 10.1016/s0014-5793(03)00204-7 . PMID   12650933.
  2. 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". Angewandte Chemie. 46 (48): 9223–6. Bibcode:2007ACIE...46.9223K. doi:10.1002/anie.200702554. PMID   17969213.
  3. Kriek M, Martins F, Leonardi R, Fairhurst SA, Lowe DJ, Roach PL (June 2007). "Thiazole synthase from Escherichia coli: an investigation of the substrates and purified proteins required for activity in vitro". The Journal of Biological Chemistry. 282 (24): 17413–23. doi: 10.1074/jbc.M700782200 . PMID   17403671.