Puneet Varma (Editor)

Phenylpyruvate tautomerase

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EC number
  
5.3.2.1

IntEnz
  
IntEnz view

ExPASy
  
NiceZyme view

CAS number
  
9023-54-5

BRENDA
  
BRENDA entry

KEGG
  
KEGG entry

In enzymology, phenylpyruvate tautomerase or Macrophage migration inhibitory factor (EC 5.3.2.1) is an enzyme that catalyzes the chemical reaction

keto-phenylpyruvate enol-phenylpyruvate

Phenylpyruvate tautomerase has also been found to exhibit the same keto-enol tautomerism for 4-Hydroxyphenylpyruvic acid, which is structurally similar to phenylpyruvate but contains an additional hydroxyl moiety in the para position of the aromatic ring.

This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases interconverting keto- and enol-groups. The systematic name of this enzyme class is phenylpyruvate keto---enol-isomerase. This enzyme is also called phenylpyruvic keto-enol isomerase. This enzyme participates in tyrosine metabolism and phenylalanine metabolism.

Structural studies

As of late 2007, 7 structures have been solved for this class of enzymes, with PDB accession codes 1GYJ, 1GYX, 1GYY, 2GDG, 2OOH, 2OOW, and 2OOZ.

References

Phenylpyruvate tautomerase Wikipedia