Thioredoxins, a ubiquitous heat-stable, acidulous small proteins with a redox activedisulfide bridge in its conserved motif -CP(G)PC-, distribute universally in eukaryote andprokaryote and have a molecular mass of approximately 12Kda.

• 硫氧还蛋白是一类广泛存于原核生物和真核生物的热稳定、酸性小分子量蛋白质(其分子量约为12Kda)。