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 b5-like heme/steroid binding 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 7: Sulfite oxidase, mitochondrial

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 12 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).
2 P51687 (/IPI) P51687 (/IPI)
Sulfite oxidase activity GO:0008482
Catalysis of the reaction: H(2)O + O(2) + sulfite = H(2)O(2) + H(+) + sulfate.
2 Q07116 (/IDA) Q9VWP4 (/IDA)
Sulfite oxidase activity GO:0008482
Catalysis of the reaction: H(2)O + O(2) + sulfite = H(2)O(2) + H(+) + sulfate.
2 P51687 (/TAS) P51687 (/TAS)
Oxidoreductase activity, acting on paired donors, with oxidation of a pair of donors resulting in the reduction of molecular oxygen to two molecules of water GO:0016717
Catalysis of an oxidation-reduction (redox) reaction in which hydrogen or electrons are transferred from each of two donors, and molecular oxygen is reduced to two molecules of water.
2 Q6WNG7 (/IDA) Q8S3C0 (/IDA)
Sulfite oxidase activity GO:0008482
Catalysis of the reaction: H(2)O + O(2) + sulfite = H(2)O(2) + H(+) + sulfate.
1 Q8R086 (/ISO)
Sulfite oxidase activity GO:0008482
Catalysis of the reaction: H(2)O + O(2) + sulfite = H(2)O(2) + H(+) + sulfate.
1 Q9VWP4 (/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 Q75JN6 (/ISS)
Linoleoyl-CoA desaturase activity GO:0016213
Catalysis of the reaction: linoleoyl-CoA + reduced acceptor + O2 = gamma-linolenoyl-CoA + acceptor + 2 H2O.
1 A7UFH0 (/IDA)
Heme binding GO:0020037
Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
1 Q07116 (/IDA)
Heme binding GO:0020037
Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
1 Q8R086 (/ISO)
Molybdopterin cofactor binding GO:0043546
Interacting selectively and non-covalently with the molybdopterin cofactor (Moco), essential for the catalytic activity of some enzymes, e.g. sulfite oxidase, xanthine dehydrogenase, and aldehyde oxidase. The cofactor consists of a mononuclear molybdenum (Mo-molybdopterin) or tungsten ion (W-molybdopterin) coordinated by one or two molybdopterin ligands.
1 Q07116 (/IDA)
Molybdopterin cofactor binding GO:0043546
Interacting selectively and non-covalently with the molybdopterin cofactor (Moco), essential for the catalytic activity of some enzymes, e.g. sulfite oxidase, xanthine dehydrogenase, and aldehyde oxidase. The cofactor consists of a mononuclear molybdenum (Mo-molybdopterin) or tungsten ion (W-molybdopterin) coordinated by one or two molybdopterin ligands.
1 Q8R086 (/ISO)

There are 8 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
Posttranscriptional regulation of gene expression GO:0010608
Any process that modulates the frequency, rate or extent of gene expression after the production of an RNA transcript.
3 Q57XJ7 (/IDA) Q57XJ7 (/IDA) Q57XJ7 (/IDA)
Unsaturated fatty acid biosynthetic process GO:0006636
The chemical reactions and pathways resulting in the formation of an unsaturated fatty acid, any fatty acid containing one or more double bonds between carbon atoms.
2 Q6WNG7 (/IDA) Q8S3C0 (/IDA)
Long-chain fatty acid biosynthetic process GO:0042759
The chemical reactions and pathways resulting in the formation of long-chain fatty acids, any fatty acid with a chain length between C13 and C22.
2 Q6WNG7 (/IDA) Q8S3C0 (/IDA)
Sulfide oxidation, using sulfide:quinone oxidoreductase GO:0070221
A sulfide oxidation process that proceeds via the reaction catalyzed by sulfide:quinone oxidoreductase.
2 P51687 (/TAS) P51687 (/TAS)
Sulfur compound metabolic process GO:0006790
The chemical reactions and pathways involving the nonmetallic element sulfur or compounds that contain sulfur, such as the amino acids methionine and cysteine or the tripeptide glutathione.
1 Q9VWP4 (/ISS)
Response to nutrient GO:0007584
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nutrient stimulus.
1 Q07116 (/IDA)
Response to nutrient GO:0007584
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nutrient stimulus.
1 Q8R086 (/ISO)
Electron transport chain GO:0022900
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 Q75JN6 (/IC)

There are 10 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
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
3 Q57XJ7 (/IDA) Q57XJ7 (/IDA) Q57XJ7 (/IDA)
Mitochondrial matrix GO:0005759
The gel-like material, with considerable fine structure, that lies in the matrix space, or lumen, of a mitochondrion. It contains the enzymes of the tricarboxylic acid cycle and, in some organisms, the enzymes concerned with fatty acid oxidation.
2 P51687 (/TAS) P51687 (/TAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 E9ADU2 (/ISO)
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
1 Q8R086 (/HDA)
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
1 Q9VWP4 (/IDA)
Mitochondrial intermembrane space GO:0005758
The region between the inner and outer lipid bilayers of the mitochondrial envelope.
1 Q07116 (/IDA)
Mitochondrial intermembrane space GO:0005758
The region between the inner and outer lipid bilayers of the mitochondrial envelope.
1 Q8R086 (/ISO)
Mitochondrial intermembrane space GO:0005758
The region between the inner and outer lipid bilayers of the mitochondrial envelope.
1 Q9VWP4 (/ISS)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
1 Q07116 (/IDA)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
1 Q8R086 (/ISO)