[thioredoxin]-dithiol + NADP(+) = [thioredoxin]-disulfide + NADPH + H(+)
[thioredoxin]-dithiol + nadp(+) = [thioredoxin]-disulfide + nadph + h(+)
"NADP--thioredoxin reductase"
"nadp--thioredoxin reductase"