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Information on EC 1.7.2.1 - nitrite reductase (NO-forming) and Organism(s) Alcaligenes xylosoxydans xylosoxydans and UniProt Accession O68601

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IUBMB Comments
The reaction is catalysed by two types of enzymes, found in the perimplasm of denitrifying bacteria. One type comprises proteins containing multiple copper centres, the other a heme protein, cytochrome cd1. Acceptors include c-type cytochromes such as cytochrome c-550 or cytochrome c-551 from Paracoccus denitrificans or Pseudomonas aeruginosa, and small blue copper proteins such as azurin and pseudoazurin. Cytochrome cd1 also has oxidase and hydroxylamine reductase activities. May also catalyse the reaction of hydroxylamine reductase (EC 1.7.99.1) since this is a well-known activity of cytochrome cd1.
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Alcaligenes xylosoxydans xylosoxydans
UNIPROT: O68601
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Word Map
The enzyme appears in selected viruses and cellular organisms
Synonyms
hemoglobin, cunir, dissimilatory nitrite reductase, marc2, marc1, pseudomonas cytochrome oxidase, cytochrome cd1 nitrite reductase, cu-nir, axnir, cytochrome cd, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
cytochrome c-551:O2, NO2- oxidoreductase
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cytochrome cd
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cytochrome oxidase
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oxidase, Pseudomonas cytochrome
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Pseudomonas cytochrome oxidase
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reductase, nitrite (cytochrome)
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
redox reaction
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oxidation
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reduction
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PATHWAY SOURCE
PATHWAYS
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-, -, -, -, -
SYSTEMATIC NAME
IUBMB Comments
nitric-oxide:ferricytochrome-c oxidoreductase
The reaction is catalysed by two types of enzymes, found in the perimplasm of denitrifying bacteria. One type comprises proteins containing multiple copper centres, the other a heme protein, cytochrome cd1. Acceptors include c-type cytochromes such as cytochrome c-550 or cytochrome c-551 from Paracoccus denitrificans or Pseudomonas aeruginosa, and small blue copper proteins such as azurin and pseudoazurin. Cytochrome cd1 also has oxidase and hydroxylamine reductase activities. May also catalyse the reaction of hydroxylamine reductase (EC 1.7.99.1) since this is a well-known activity of cytochrome cd1.
CAS REGISTRY NUMBER
COMMENTARY hide
9027-00-3
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UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
O68601_ALCXX
360
0
38939
TrEMBL
other Location (Reliability: 5)