Iodophenol O-methyltransferase

Iodophenol O-methyltransferase
Identifiers
EC no.2.1.1.26
CAS no.37256-95-4
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

Iodophenol O-methyltransferase (EC 2.1.1.26) is an enzyme that catalyzes the chemical reaction

+ SAM
 
 
 
 
Rightward reaction arrow
 
 
 
2D representation of the chemical structure of Q27101865.
2-Iodoanisole
+ SAH
 

This is a methylation reaction in which 2-iodophenol is converted to 2-iodoanisole. The methyl group comes from the cofactor, S-adenosyl methionine (SAM), which loses its methyl group and becomes S-adenosyl-L-homocysteine (SAH). Other iodophenols are also methylated, with the highest activity being found with 4-hydroxy-3,5-diiodobenzoic acid (ioxynic acid).[1]

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:2-iodophenol O-methyltransferase.[2]

References

  1. ↑ Tomita K, Cha CJ, Lardy HA (1964). "Enzymic O-methylation of iodinated phenols and thyroid hormones". J. Biol. Chem. 239 (4): 1202–1207. doi:10.1016/S0021-9258(18)91412-2. PMID 14165927.
  2. ↑ Enzyme 2.1.1.26 at KEGG Pathway Database.