Folylpolyglutamate Synthase, Mitochondrial (FPGS)

Folylpoly-gamma-glutamate synthetase; Tetrahydrofolylpolyglutamate synthase; Tetrahydrofolate synthase

SPN	U363
HGNC	3824
MGI	95576
PubMed	17286537
UniProt	Q05932
Wiki	FPGS

Folylpolyglutamate synthase, also known as FPGS encodes the folylpolyglutamate synthetase enzyme. This enzyme has a central role in establishing and maintaining both cytosolic and mitochondrial folylpolyglutamate concentrations and, therefore, is essential for folate homeostasis and the survival of proliferating cells. The enzyme folylpoly-gamma-glutamase synthethase (FPGS) plays an important role in the intracellular polyglutamation of the disease-modifying antirheumatic drug methotrexate (MTX) and the length of the polyglutamated MTX product correlates with the time that MTX resides in the cell. The glutamates are released from MTX by activity of the enzyme gamma-glutamyl-hydrolase (GGH), thereby allowing the efflux of MTX.

Reference

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