Glycine formimidoyltransferase

Glycine formimidoyltransferase
Identifiers
EC no.2.1.2.4
CAS no.9029-84-9
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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NCBIproteins

Glycine formimidoyltransferase (EC 2.1.2.4) is an enzyme that catalyzes the chemical reaction

+
 
 
 
 
Reversible left-right reaction arrow
 
 
 
2D representation of the chemical structure of Q27103064.
N-Formimidoylglycine
+ THF
 

This tetrahydrofolate–dependent enzyme catalyzes a nucleophilic acyl substitution of the formimino group from the cofactor 5-formiminotetrahydrofolate to glycine, giving N-formimidoylglycine, with tetrahydrofolate (THF) as a byproduct.[1] The enzyme can act in reverse to produce 5-formiminotetrahydrofolate.[2][3]

This enzyme belongs to the family of transferases that transfer one-carbon groups, specifically the hydroxymethyl-, formyl- and related transferases. The systematic name of this enzyme class is 5-formimidoyltetrahydrofolate:glycine N-formimidoyltransferase. Other names in common use include formiminoglycine formiminotransferase, FIG formiminotransferase, and glycine formiminotransferase. This enzyme participates in purine metabolism.[4]

References

  1. ↑ Sagers RD, Beck JV, Gruber W, Gunsalus IC (1956). "A tetrahydrofolic acid linked formimino transfer enzyme". J. Am. Chem. Soc. 78 (3): 694–695. Bibcode:1956JAChS..78..694G. doi:10.1021/ja01584a054.
  2. ↑ Rabinowitz JC; Pricer WE (1956). "Formiminotetrahydrofolic acid and methenyltetrahydrofolic acid as intermediates in the formation of N10-formyltetrahydrofolic acid". J. Am. Chem. Soc. 78 (21): 5702–5704. Bibcode:1956JAChS..78.5702R. doi:10.1021/ja01602a073.
  3. ↑ Rabinowitz JC; Pricer WE (1957). "Formation, isolation and properties of 5-formiminotetrahydrofolic acid". Fed. Proc. 16: 236.
  4. ↑ Enzyme 2.1.2.4 at KEGG Pathway Database.