A FLAVOPROTEIN enzyme that catalyzes the oxidation of THIOREDOXINS to thioredoxin disulfide in the presence of NADP+. It was formerly listed as EC 1.6.4.5 (mesh:D013880)
| Synonym | Reference | Specificity |
| thioredoxin reductase | Exact | |
| Thioredoxin reductase | Exact |
| Identifier | Name | Relation |
| HGNC:18155 | TXNRD2 | isa |
| HGNC:12437 | TXNRD1 | isa |
| HGNC:20667 | TXNRD3 | isa |