NADPH dehydrogenase activity Reactome:R-HSA-9018867 triphosphopyridine nucleotide diaphorase activity Reactome:R-HSA-9018901 NADPH-dehydrogenase activity EC:1.6.99.1 triphosphopyridine diaphorase activity RHEA:13149 GO:0008468 NADPH2-dehydrogenase activity molecular_function TPNH-diaphorase activity NADPH diaphorase activity reduced nicotinamide adenine dinucleotide phosphate dehydrogenase activity dihydronicotinamide adenine dinucleotide phosphate dehydrogenase activity Catalysis of the reaction: NADPH + H+ + acceptor = NADP+ + reduced acceptor. GO:0016660 MetaCyc:NADPH-DEHYDROGENASE-RXN NADPH2 diaphorase activity GO:0003959 OYE NADPH:(acceptor) oxidoreductase activity RHEA:30151 NADPH:acceptor oxidoreductase activity old yellow enzyme TPNH dehydrogenase activity oxidoreductase activity, acting on NAD(P)H