TrxR (硫氧还蛋白还原酶)

TrxR (Thioredoxin Reductase) is a selenium-containing pyridine nucleotide-disulphide oxidoreductase. There are three isoforms of mammalian TrxRs: TrxR1 (TXRND1), TrxR2 (TXNRD2) and TrxR3 (TGR). TrxRs catalyze the NADPH-dependent reduction of the redox protein thioredoxin (Trx). TrxR is important in regulating the intracellular redox environment, cell growth and transformation, as well as the recycling of ascorbate from its oxidized form. Trx/TrxR system is associated with the cancers, metabolic syndrome, insulin resistance, and type 2 diabetes, as well as in hypertension and atherosclerosis^[1][2].