CATH Classification
Level | CATH Code | Description |
---|---|---|
3 | Alpha Beta | |
3.40 | 3-Layer(aba) Sandwich | |
3.40.50 | Rossmann fold | |
3.40.50.2300 | Response regulator |
Domain Context
CATH Clusters
Superfamily | 3.40.50.2300 |
Functional Family | Arsenate reductase |
Enzyme Information
1.20.4.4 |
Arsenate reductase (thioredoxin).
based on mapping to UniProt P0A006
Arsenate + thioredoxin = arsenite + thioredoxin disulfide + H(2)O.
-!- The enzyme, characterized in bacteria of the Firmicutes phylum, is specific for thioredoxin. -!- It has no activity with glutaredoxin (cf. EC 1.20.4.1). -!- Although the arsenite formed is more toxic than arsenate, it can be extruded from some bacteria by EC 7.3.2.7; in other organisms, arsenite can be methylated by EC 2.1.1.137 in a pathway that produces non-toxic organoarsenical compounds. -!- The enzyme also has the activity of EC 3.1.3.48.
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UniProtKB Entries (1)
P0A006 |
ARSC_STAAU
Staphylococcus aureus
Arsenate reductase
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PDB Structure
PDB | 1LJL |
External Links | |
Method | X-RAY DIFFRACTION |
Organism | Escherichia |
Primary Citation |
All intermediates of the arsenate reductase mechanism, including an intramolecular dynamic disulfide cascade.
Proc.Natl.Acad.Sci.USA
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