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CATH Superfamily 2.140.10.20

C-terminal (heme d1) domain of cytochrome cd1-nitrite reductase

The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
C-terminal (heme d1) domain of cytochrome cd1-nitrite reductase
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 1: Nitrite reductase NirS

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 6 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Nitrite reductase (NO-forming) activity GO:0050421
Catalysis of the reaction: nitric oxide + H2O + ferricytochrome c = nitrite + ferrocytochrome c + 2 H+.
 7 P24474 (/TAS) P24474 (/TAS) P24474 (/TAS) P24474 (/TAS) P24474 (/TAS) P24474 (/TAS) P24474 (/TAS)
Nitrite reductase (NO-forming) activity GO:0050421
Catalysis of the reaction: nitric oxide + H2O + ferricytochrome c = nitrite + ferrocytochrome c + 2 H+.
 2 Q44012 (/IMP) Q44012 (/IMP)
Nitrite reductase (NO-forming) activity GO:0050421
Catalysis of the reaction: nitric oxide + H2O + ferricytochrome c = nitrite + ferrocytochrome c + 2 H+.
 2 Q47WF2 (/ISS) Q5LL09 (/ISS)
Electron transfer activity GO:0009055
Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient.
 1 Q5LL09 (/ISS)
Heme binding GO:0020037
Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
 1 Q5LL09 (/ISS)
Nitrite reductase (NO-forming) activity GO:0050421
Catalysis of the reaction: nitric oxide + H2O + ferricytochrome c = nitrite + ferrocytochrome c + 2 H+.
 1 Q3LGA9 (/IDA)

There are 1 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Denitrification pathway GO:0019333
The reduction of nitrate to dinitrogen by four reactions; each intermediate is transformed to the next lower oxidation state; also part of cellular bioenergetics; the nitrogen compounds can serve as terminal acceptors for electron transport phosphorylation in place of oxygen.
 2 Q47WF2 (/ISS) Q5LL09 (/ISS)

There are 0 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.