gamma-glutamyl hydrolase

γ-glu·tam·yl hy·dro·lase

(glū'tam'il hī'drō-lās),
An enzyme that catalyzes the removal of l-glutamyl residues from pteridine oligoglutamates; used in certain antitumor treatments.

GGH

A gene on chromosome 8q12.3 that encodes gamma-glutamyl hydrolase, which progressively removes gamma-glutamyl residues from pteroyl poly-gamma-glutamate to yield pteroyl-alpha-glutamate (folic acid) and free glutamate. GGH may play a key role in ensuring the bioavailability of dietary pteroylpolyglutamates and in the metabolism of pteroylpolyglutamates and antifolates.
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2] Human genes: BRCA1, breast cancer 1, early onset; BRCA2, breast cancer 2, early onset; MGST3, microsomal glutathione S-transferase 3; GBP1, guanylate binding protein 1, interferon-inducible, 67kDa; MTAP, methylthioadenosine phosphorylase; GGH, gamma-glutamyl hydrolase (conjugase, folylpolygamma-glutamyl hydrolase); MADCAM1, mucosal vascular addressin cell adhesion molecule 1; POSTN, periostin, osteoblast specific factor; PMS1, PMS1 postmeiotic segregation increased 1 (S.
Gene Gene name US patent symbol MGST3 Microsomal glutathione S-transferase 3 5,919,627 GBP1 Guanylate binding protein 1, interferon- 6,894,157 inducible, 67kDa GGH Gamma-glutamyl hydrolase (conjugase, 5,801,031 folylpolygammaglutamyl hydrolase) MTAP Methylthioadenosine phosphorylase 5,942,393; 6,870,037 MADCAM1 Mucosal vascular addressin cell adhesion 7,750,137 molecule 1 POSTN Periostin, osteoblast specific factor 6,518,063 PMS1 PMS1 postmeiotic segregation increased 1 5,922,855; (S.
In this trial, tumour expression of TS, DPD and gamma-glutamyl hydrolase, related to antifolate resistance [7], did not condition RR in both arms.

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