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Glutathione gamma glutamylcysteinyltransferase

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EC number
  
2.3.2.15

IntEnz
  
IntEnz view

ExPASy
  
NiceZyme view

CAS number
  
125390-02-5

BRENDA
  
BRENDA entry

KEGG
  
KEGG entry

In enzymology, a glutathione gamma-glutamylcysteinyltransferase (EC 2.3.2.15) is an enzyme that catalyzes the chemical reaction

glutathione + [Glu(-Cys)]n-Gly Gly + [Glu(-Cys)]n+1-Gly

Thus, the two substrates of this enzyme are glutathione and [Glu(-Cys)]n-Gly, whereas its two products are Gly and [Glu(-Cys)]n+1-Gly.

This enzyme belongs to the family of transferases, specifically the aminoacyltransferases. The systematic name of this enzyme class is glutathione:poly(4-glutamyl-cysteinyl)glycine 4-glutamylcysteinyltransferase. Other names in common use include phytochelatin synthase, and gamma-glutamylcysteine dipeptidyl transpeptidase.

Structural studies

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 2BTW and 2BU3.

References

Glutathione gamma-glutamylcysteinyltransferase Wikipedia