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Decreased folylpolyglutamate synthetase activity in tumors resistant to fluorou…

Chazal(M),Cheradame(S),Formento(J L),Francou… Clin Cancer Res 1999-02-18

...FPGS. FPGS activity expressed in liver metastases was significantly correlated to that expressed in primaries. The distr...

Folylpolyglutamate synthesis in Neurospora crassa: primary structure of the fol…

Atkinson(I J),Nargang(F E),Cossins(E A) Phytochemistry 1999-02-08

In Neurospora crassa, the met-6+ gene encodes folylpoly-gamma-glutamate synthetase (FPGS) which catalyzes the formation ...

Thymidylate synthase level as the main predictive parameter for sensitivity to …

van Triest(B),Pinedo(H M),van Hensbergen(Y),… Clin Cancer Res 1999-06-22

...FPGS) activity showed a range from 47 to 429 pmol/10(6) cells/h. A total of 24 h of [3H]MTX accumulation showed a 20-fol...

5-deazafolate analogues with a rotationally restricted glutamate or ornithine s…

Rosowsky(A),Forsch(R A),Null(A),Moran(R G) J Med Chem 1999-10-14

...FPGS, whereas 1 and 2 were exceptionally efficient FPGS substrates, with the reduced compound 2 giving a K(m) (0.018 mic...

Impact of polyglutamation on sensitivity to raltitrexed and methotrexate in rel…

Barnes(M J),Estlin(E J),Taylor(G A),Aherne(G… Clin Cancer Res 1999-11-22

The aim of this study was to investigate the influence of folylpolyglutamyl synthetase (FPGS) activity on the cellular p...

Mechanisms of methotrexate resistance in acute leukemia. Decreased transport an…

Gorlick(R),Cole(P),Banerjee(D),Longo(G),Li(W… Adv Exp Med Biol 1999-11-04

...FPGS) were studied, demonstrating FPGS in the myeloid cell lines and patient samples had a higher K(m) for MTX as a subs...

Variable expression of the folylpolyglutamate synthetase gene at the level of m…

Takemura(Y),Kobayashi(H),Miyachi(H) Anticancer Drugs 1999-10-28

We investigated the expression of the folylpolyglutamate synthetase (FPGS) gene at the mRNA level in MOLT-3 and K562 hum...

Identification of three key active site residues in the C-terminal domain of hu…

Sanghani(S P),Sanghani(P C),Moran(R G) J Biol Chem 1999-10-13

...FPGS activity, one mutant (D335A) did not complement the auxotrophy, and another (R377A) allowed only minimal growth. FP...

Roles of folylpoly-gamma-glutamate synthetase in therapeutics with tetrahydrofo…

Moran(R G) Semin Oncol 1999-12-21

Folylpoly-gamma-glutamate synthetase (FPGS) catalyzes the addition of several equivalents of glutamic acid to the gamma-...

Enzyme inhibition, polyglutamation, and the effect of LY231514 (MTA) on purine …

Mendelsohn(L G),Shih(C),Chen(V J),Habeck(L L… Semin Oncol 1999-12-21

...FPGS) activated MTA very efficiently. Using FPGS from two different species, Km values below 2 micromol/L and high relat...

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