From Wikipedia, the free encyclopedia
methylarsonate reductase
Identifiers
EC no. 1.20.4.2
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, a methylarsonate reductase ( EC 1.20.4.2) is an enzyme that catalyzes the chemical reaction

methylarsonate + 2 glutathione methylarsonite + glutathione disulfide + H2O

Thus, the two substrates of this enzyme are methylarsonate and glutathione, whereas its 3 products are methylarsonite, glutathione disulfide, and H2O.

This enzyme belongs to the family of oxidoreductases, specifically those acting on phosphorus or arsenic in donor with disulfide as acceptor. The systematic name of this enzyme class is gluthathione:methylarsonate oxidoreductase. This enzyme is also called MMA(V) reductase.

References

  • Zakharyan RA, Aposhian HV (1999). "Enzymatic reduction of arsenic compounds in mammalian systems: the rate-limiting enzyme of rabbit liver arsenic biotransformation is MMA(V) reductase". Chem. Res. Toxicol. 12 (12): 1278–83. doi: 10.1021/tx9901231. PMID  10604879.


From Wikipedia, the free encyclopedia
methylarsonate reductase
Identifiers
EC no. 1.20.4.2
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
Search
PMC articles
PubMed articles
NCBI proteins

In enzymology, a methylarsonate reductase ( EC 1.20.4.2) is an enzyme that catalyzes the chemical reaction

methylarsonate + 2 glutathione methylarsonite + glutathione disulfide + H2O

Thus, the two substrates of this enzyme are methylarsonate and glutathione, whereas its 3 products are methylarsonite, glutathione disulfide, and H2O.

This enzyme belongs to the family of oxidoreductases, specifically those acting on phosphorus or arsenic in donor with disulfide as acceptor. The systematic name of this enzyme class is gluthathione:methylarsonate oxidoreductase. This enzyme is also called MMA(V) reductase.

References

  • Zakharyan RA, Aposhian HV (1999). "Enzymatic reduction of arsenic compounds in mammalian systems: the rate-limiting enzyme of rabbit liver arsenic biotransformation is MMA(V) reductase". Chem. Res. Toxicol. 12 (12): 1278–83. doi: 10.1021/tx9901231. PMID  10604879.



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