. "\"Catalysis of the reaction: H(2)O + 2 ferricytochrome c + nitrous oxide = 2 H(+) + 2 ferrocytochrome c + 2 nitric oxide.\" [EC:1.7.2.5]" . . "nitric oxide reductase activity" . "nitric-oxide reductase activity" . "nitrogen oxide reductase activity" . "nitrous-oxide:(acceptor) oxidoreductase (NO-forming)" . "nitrous-oxide:acceptor oxidoreductase (NO-forming)" . "EC:1.7.2.5" . "KEGG:R00294" . "MetaCyc:NITRIC-OXIDE-REDUCTASE-RXN" . . "CYP55" . "cytochrome bc nitric oxide reductase activity" . "P450 nitric oxide reductase activity" . "P450nor" .