ID 1.20.4.1 DE Arsenate reductase (glutaredoxin). CA Arsenate + glutaredoxin = arsenite + glutaredoxin disulfide + H(2)O. CF Molybdenum. CC -!- The glutaredoxins catalyze glutathione-disulfide oxidoreductions and CC have a redox-active disulfide/dithiol in the active site (-Cys- CC Pro-Tyr-Cys-) that forms a disulfide bond in the oxidized form. CC -!- Glutaredoxins have a binding site for glutathione, which is required CC to reduce them to the dithiol form. CC -!- Thioredoxins reduced by NADPH and thioredoxin reductase can act as CC alternative substrates. CC -!- The enzyme is part of a system for detoxifying arsenate. CC -!- Although the arsenite formed is more toxic than arsenate, it can be CC extruded from some bacteria by EC 3.6.3.16. CC -!- In other organisms, arsenite can be methylated by EC 2.1.1.137 in a CC pathway to non-toxic organoarsenical compounds. CC -!- Formerly EC 1.97.1.5. DR Q336V5, ACR21_ORYSJ; Q10SX6, ACR22_ORYSJ; P08692, ARSC1_ECOLX; DR P52147, ARSC2_ECOLX; P0CF87, ARSCL_ECOLI; O50595, ARSC_ACIMA ; DR P0AB96, ARSC_ECOLI ; P44589, ARSC_HAEIN ; P95354, ARSC_NEIGO ; DR P63621, ARSC_NEIMA ; P63622, ARSC_NEIMB ; P0AB97, ARSC_SHIFL ; DR P74984, ARSC_YEREN ; //