. "\"Catalysis of the reaction: 2-C-methyl-D-erythritol 4-phosphate + NADP(+) = 1-deoxy-D-xylulose 5-phosphate + H(+) + NADPH.\" [EC:1.1.1.267, RHEA:13720]" . . "1-deoxy-D-xylulose-5-phosphate reductoisomerase activity" . "1-deoxy-D-xylulose-5-phosphate isomeroreductase activity" . "1-deoxyxylulose-5-phosphate reductoisomerase activity" . "2-C-methyl-D-erythritol-4-phosphate:NADP+ oxidoreductase (isomerizing)" . "2C-methyl-D-erythritol-4-phosphate (MEP) synthase activity" . "DOXP reductoisomerase activity" . "DXP-reductoisomerase activity" . "EC:1.1.1.267" . "KEGG:R05688" . "MetaCyc:DXPREDISOM-RXN" . "RHEA:13720" . .