Protein Variants | Comment | Organism |
---|---|---|
I26N/K31P | less than 10% of wild-type activity | Drosophila melanogaster |
K31P | no detectable activity | Drosophila melanogaster |
L22R | mutation predicted in silico to be resistant to methotrexate, confers resistance to methotrexate to transfected CHO cells. 65% of wild-type enzyme activity | Drosophila melanogaster |
L30Q | mutation found in a methotrexate resistant cell line, confers resistance to methotrexate to transfected CHO cells. 42% of wild-type enzyme activity | Drosophila melanogaster |
Q134K | 51% of wild-type enzyme activity | Drosophila melanogaster |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
methotrexate | wild-type, 50% inhibition at 1.06 nM, mutant Q134K, 50% inhibition at 16.7 nM, mutant L30Q, 50% inhibition at 785 nM | Drosophila melanogaster |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.00004 | - |
7,8-dihydrofolate | mutant Q134K, pH 8.5, 25°C | Drosophila melanogaster | |
0.00119 | - |
7,8-dihydrofolate | wild-type, pH 8.5, 25°C | Drosophila melanogaster | |
0.0055 | - |
NADPH | mutant Q134K, pH 8.5, 25°C | Drosophila melanogaster | |
0.00592 | - |
7,8-dihydrofolate | mutant L30Q, pH 8.5, 25°C | Drosophila melanogaster | |
0.0069 | - |
NADPH | wild-type, pH 8.5, 25°C | Drosophila melanogaster | |
0.0071 | - |
NADPH | mutant L30Q, pH 8.5, 25°C | Drosophila melanogaster |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Drosophila melanogaster | P17719 | expression in Chinese hamster ovary cells | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
7,8-dihydrofolate + NADPH | - |
Drosophila melanogaster | 5,6,7,8-tetrahydrofolate + NADP+ | - |
? |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
NADPH | - |
Drosophila melanogaster |