Nitric oxide reductase (menaquinol)

Nitric oxide reductase (menaquinol) (EC 1.7.5.2) is an enzyme.[1][2][3] This enzyme catalyses the following chemical reaction

2 nitric oxide + menaquinol nitrous oxide + menaquinone + H2O
Nitric oxide reductase (menaquinol)
Identifiers
EC number1.7.5.2
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

Nitric oxide reductase contains copper.

In 2015 the laboratory that had characterized the Bacillus azotoformans enzyme wrote, "The copper-A-dependent Nor from Bacillus azotoformans uses cytochrome c₅₅₁ as electron donor but lacks menaquinol activity, in contrast to our earlier report."[4]

References

  1. Cramm R, Pohlmann A, Friedrich B (October 1999). "Purification and characterization of the single-component nitric oxide reductase from Ralstonia eutropha H16". FEBS Letters. 460 (1): 6–10. doi:10.1016/s0014-5793(99)01315-0. PMID 10571051.
  2. Strampraad MJ, Schröder I, de Vries S (February 2001). "A novel copper A containing menaquinol NO reductase from Bacillus azotoformans". Biochemistry. 40 (8): 2632–9. doi:10.1021/bi0020067. PMID 11327887.
  3. Heering HA, de Vries S (October 2004). "NO reductase from Bacillus azotoformans is a bifunctional enzyme accepting electrons from menaquinol and a specific endogenous membrane-bound cytochrome c551". Biochemistry. 43 (42): 13487–95. doi:10.1021/bi0488101. PMID 15491156.
  4. Al-Attar S, de Vries S (July 2015). "An electrogenic nitric oxide reductase". FEBS Letters. 589 (16): 2050–7. doi:10.1016/j.febslet.2015.06.033. PMID 26149211.
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