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:

"
Cytochrome-c3 hydrogenase, C-terminal domain
".

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 2: Hydrogenase-1 small chain

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 5 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
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
114 P69739 (/IPI) P69739 (/IPI) P69739 (/IPI) P69739 (/IPI) P69739 (/IPI) P69739 (/IPI) P69739 (/IPI) P69739 (/IPI) P69739 (/IPI) P69739 (/IPI)
(104 more)
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.
114 P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA)
(104 more)
3 iron, 4 sulfur cluster binding GO:0051538
Interacting selectively and non-covalently with a 3 iron, 4 sulfur (3Fe-4S) cluster; this cluster consists of three iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands. It is essentially a 4Fe-4S cluster with one iron missing.
114 P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA)
(104 more)
4 iron, 4 sulfur cluster binding GO:0051539
Interacting selectively and non-covalently with a 4 iron, 4 sulfur (4Fe-4S) cluster; this cluster consists of four iron atoms, with the inorganic sulfur atoms found between the irons and acting as bridging ligands.
114 P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA)
(104 more)
Ferredoxin hydrogenase activity GO:0008901
Catalysis of the reaction: 2 reduced ferredoxin + 2 H+ = 2 oxidized ferredoxin + H2.
3 Q60CE2 (/ISS) Q74GX1 (/ISS) Q8CVD3 (/ISS)

There are 3 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
Fermentation GO:0006113
The anaerobic enzymatic conversion of organic compounds, especially carbohydrates, coupling the oxidation and reduction of NAD/H and the generation of adenosine triphosphate (ATP).
114 P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP)
(104 more)
Anaerobic respiration GO:0009061
The enzymatic release of energy from inorganic and organic compounds (especially carbohydrates and fats) which uses compounds other than oxygen (e.g. nitrate, sulfate) as the terminal electron acceptor.
114 P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP) P69739 (/IEP)
(104 more)
Oxidation-reduction process GO:0055114
A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
1 Q60CE2 (/ISS)

There are 6 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.
GO Term Annotations Evidence
Integral component of plasma membrane GO:0005887
The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
114 P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA)
(104 more)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
114 P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA)
(104 more)
Integral component of membrane GO:0016021
The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
114 P69739 (/ISM) P69739 (/ISM) P69739 (/ISM) P69739 (/ISM) P69739 (/ISM) P69739 (/ISM) P69739 (/ISM) P69739 (/ISM) P69739 (/ISM) P69739 (/ISM)
(104 more)
Intrinsic component of periplasmic side of plasma membrane GO:0031237
The component of a plasma membrane consisting of gene products and protein complexes that penetrate the periplasmic side of the plasma membrane only, either directly or via some covalently attached hydrophobic anchor.
114 P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA)
(104 more)
[Ni-Fe] hydrogenase complex GO:0044569
A microbial enzyme complex which contains nickel and iron in its active site. In Acetomicrobium flavidum it is an alpha 2 beta 2 tetramer.
114 P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA) P69739 (/IDA)
(104 more)
[Ni-Fe] hydrogenase complex GO:0044569
A microbial enzyme complex which contains nickel and iron in its active site. In Acetomicrobium flavidum it is an alpha 2 beta 2 tetramer.
114 P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA) P69739 (/RCA)
(104 more)
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