ID 1.20.4.4 DE arsenate reductase (thioredoxin). CA [thioredoxin]-dithiol + arsenate + H(+) = [thioredoxin]-disulfide + CA arsenite + H2O. CC -!- The enzyme, characterized in bacteria of the Firmicutes phylum, CC is specific for thioredoxin. CC -!- It has no activity with glutaredoxin (cf. EC 1.20.4.1). CC -!- Although the arsenite formed is more toxic than arsenate, it can be CC extruded from some bacteria by EC 7.3.2.7; in other organisms, CC arsenite can be methylated by EC 2.1.1.137 in a pathway that produces CC non-toxic organoarsenical compounds. CC -!- The enzyme also has the activity of EC 3.1.3.48. DR Q74NT6, ARSC1_BACC1; Q5HRI4, ARSC1_STAEQ; Q4LAB5, ARSC1_STAHJ; DR Q49WS7, ARSC1_STAS1; Q735E5, ARSC2_BACC1; Q5HKB7, ARSC2_STAEQ; DR Q4LAA8, ARSC2_STAHJ; Q49UH1, ARSC2_STAS1; C3P101, ARSC_BACAA ; DR C3LDK1, ARSC_BACAC ; Q81NJ6, ARSC_BACAN ; B7INE4, ARSC_BACC2 ; DR C1F0A7, ARSC_BACC3 ; B7HWU2, ARSC_BACC7 ; A7GP55, ARSC_BACCN ; DR B9IRF0, ARSC_BACCQ ; Q81BK3, ARSC_BACCR ; Q639D2, ARSC_BACCZ ; DR Q6HGP0, ARSC_BACHK ; Q65IV4, ARSC_BACLD ; P45947, ARSC_BACSU ; DR C0ZEV2, ARSC_BREBN ; A4INR2, ARSC_GEOTN ; Q9K8K8, ARSC_HALH5 ; DR B9E7M5, ARSC_MACCJ ; Q8ENQ5, ARSC_OCEIH ; Q8GJ74, ARSC_PRIM3 ; DR Q5WJS9, ARSC_SHOC1 ; Q2FFW6, ARSC_STAA3 ; Q2FXF5, ARSC_STAA8 ; DR Q2YTL3, ARSC_STAAB ; Q5HF01, ARSC_STAAC ; A6QHV6, ARSC_STAAE ; DR P0A005, ARSC_STAAN ; Q6GIZ3, ARSC_STAAR ; A8Z4K0, ARSC_STAAT ; DR P0A006, ARSC_STAAU ; Q8CQF5, ARSC_STAES ; Q01257, ARSC_STAXY ; //