IUBMB Enzyme Nomenclature


Accepted name: arsenate reductase (glutaredoxin)

Reaction: arsenate + glutaredoxin = arsenite + glutaredoxin disulfide + H2O

For diagram of reaction click here.

Other name(s): ArsC (ambiguous)

Systematic name: arsenate:glutaredoxin oxidoreductase

Comments: A molybdoenzyme. The enzyme is part of a system for detoxifying arsenate. Although the arsenite formed is more toxic than arsenate, it can be extruded from some bacteria by EC, arsenite-transporting ATPase; in other organisms, arsenite can be methylated by EC, arsenite methyltransferase, in a pathway that produces non-toxic organoarsenical compounds. cf. EC, arsenate reductase (thioredoxin).

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, UM-BBD, CAS registry number: 146907-46-2


1. Gladysheva, T., Liu, J.Y. and Rosen, B.P. His-8 lowers the pKa of the essential Cys-12 residue of the ArsC arsenate reductase of plasmid R773. J. Biol. Chem. 271 (1996) 33256-33260. [PMID: 8969183]

2. Gladysheva, T.B., Oden, K.L. and Rosen, B.P. Properties of the arsenate reductase of plasmid R773. Biochemistry 33 (1994) 7288-7293. [PMID: 8003492]

3. Holmgren, A. and Aslund, F. Glutaredoxin. Methods Enzymol. 252 (1995) 283-292. [PMID: 7476363]

4. Krafft, T. and Macy, J.M. Purification and characterization of the respiratory arsenate reductase of Chrysiogenes arsenatis. Eur. J. Biochem. 255 (1998) 647-653. [PMID: 9738904]

5. Martin, J.L. Thioredoxin - a fold for all reasons. Structure 3 (1995) 245-250. [PMID: 7788290]

6. Radabaugh, T.R. and Aposhian, H.V. Enzymatic reduction of arsenic compounds in mammalian systems: reduction of arsenate to arsenite by human liver arsenate reductase. Chem. Res. Toxicol. 13 (2000) 26-30. [PMID: 10649963]

7. Sato, T. and Kobayashi, Y. The ars operon in the skin element of Bacillus subtilis confers resistance to arsenate and arsenite. J. Bacteriol. 180 (1998) 1655-1661. [PMID: 9537360]

8. Shi, J., Vlamis-Gardikas, V., Aslund, F., Holmgren, A. and Rosen, B.P. Reactivity of glutaredoxins 1, 2, and 3 from Escherichia coli shows that glutaredoxin 2 is the primary hydrogen donor to ArsC-catalyzed arsenate reduction. J. Biol. Chem. 274 (1999) 36039-36042. [PMID: 10593884]

[EC created 2000 as EC, transferred 2001 to EC, modified 2015]

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