1.5.1.6: formyltetrahydrofolate dehydrogenase
This is an abbreviated version!
For detailed information about formyltetrahydrofolate dehydrogenase, go to the full flat file.
Reaction
Synonyms
10-FDH, 10-formyl tetrahydrofolate:NADP oxidoreductase, 10-formyl-H2PtGlu:NADP oxidoreductase, 10-formyl-H4folate dehydrogenase, 10-formyltetrahydrofolate dehydrogenase, 10-fTHF dehydrogenase, 10-FTHFDH, ALDH1L1, ALDH1L2, dehydrogenase, formyltetrahydrofolate, FBP-CI, FBP-CI proteins, FDH, folate-binding proteins, cytosol I, More, mtFDH, N10-formyltetrahydrofolate dehydrogenase, proteins, folate-binding, cytosol I
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General Information
General Information on EC 1.5.1.6 - formyltetrahydrofolate dehydrogenase
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physiological function
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FDH induces apoptosis in PC-3 prostate cells through simultaneous activation of the c-Jun-NH2-kinase JNK and extracellular signal-regulated kinase ERK pathways with JNK phosphorylating c-Jun and ERK1/2 phosphorylating Elk-1. The JNK1/2 inhibitor SP600125 or ERK1/2 inhibitor PD98059 prevents phosphorylation of c-Jun and Elk-1, correspondingly and partially protects PC-3 cells from FDH-induced cytotoxicity. Combination of the two inhibitors produces an additive effect. The FDH-induced apoptosis in p53-proficient A-549 cells also proceeds through activation of JNK1/2, but the down-stream target for JNK2 is p53 instead of c-Jun. In A-549 cells, FDH activates caspase 9, whereas in PC-3 cells, it activates caspase 8