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Phosphoribosylaminoimidazolecarboxamide formyltransferase

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EC number
  
2.1.2.3

IntEnz
  
IntEnz view

ExPASy
  
NiceZyme view

CAS number
  
9032-03-5

BRENDA
  
BRENDA entry

KEGG
  
KEGG entry

In enzymology, a phosphoribosylaminoimidazolecarboxamide formyltransferase (EC 2.1.2.3), also known by the shorter name AICAR transformylase, is an enzyme that catalyzes the chemical reaction

Contents

10-formyltetrahydrofolate + AICAR tetrahydrofolate + FAICAR

Thus, the two substrates of this enzyme are 10-formyltetrahydrofolate and AICAR, whereas its two products are tetrahydrofolate and FAICAR.

This enzyme participates in purine metabolism and one carbon pool by folate.

Nomenclature

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 10-formyltetrahydrofolate:5-phosphoribosyl-5-amino-4-imidazole-carb oxamide N-formyltransferase. Other names in common use include:

Structural studies

As of late 2007, 11 structures have been solved for this class of enzymes, with PDB accession codes 1G8M, 1M9N, 1OZ0, 1P4R, 1PKX, 1PL0, 1THZ, 2B1G, 2B1I, 2IU0, and 2IU3.

References

Phosphoribosylaminoimidazolecarboxamide formyltransferase Wikipedia