Fig. 1: Schematic role of selenium in the TrxR-proposed mechanisms.
From: Biomimetic selenocystine based dynamic combinatorial chemistry for thiol-disulfide exchange

a Selenium acting as a nucleophile. b Selenium acting as an electrophile.
From: Biomimetic selenocystine based dynamic combinatorial chemistry for thiol-disulfide exchange
a Selenium acting as a nucleophile. b Selenium acting as an electrophile.