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:

"
Helix-loop-helix DNA-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 21: Transcription factor bHLH130 family

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 4 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
DNA-binding transcription factor activity GO:0003700
A protein or a member of a complex that interacts selectively and non-covalently with a specific DNA sequence (sometimes referred to as a motif) within the regulatory region of a gene to modulate transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units, and include bacterial operons.
12 F4IQ66 (/ISS) F4IQ66 (/ISS) Q66GR3 (/ISS) Q66GR3 (/ISS) Q8H102 (/ISS) Q8H102 (/ISS) Q9C690 (/ISS) Q9C690 (/ISS) Q9C8P8 (/ISS) Q9C8P8 (/ISS)
(2 more)
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).
6 Q8H102 (/IPI) Q8H102 (/IPI) Q9C690 (/IPI) Q9C690 (/IPI) Q9C8P8 (/IPI) Q9C8P8 (/IPI)
DNA-binding transcription factor activity GO:0003700
A protein or a member of a complex that interacts selectively and non-covalently with a specific DNA sequence (sometimes referred to as a motif) within the regulatory region of a gene to modulate transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units, and include bacterial operons.
2 Q9C690 (/IDA) Q9C690 (/IDA)
Transcription regulatory region DNA binding GO:0044212
Interacting selectively and non-covalently with a DNA region that regulates the transcription of a region of DNA, which may be a gene, cistron, or operon. Binding may occur as a sequence specific interaction or as an interaction observed only once a factor has been recruited to the DNA by other factors.
2 Q8H102 (/IPI) Q8H102 (/IPI)

There are 6 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
Regulation of transcription, DNA-templated GO:0006355
Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
12 F4IQ66 (/TAS) F4IQ66 (/TAS) Q66GR3 (/TAS) Q66GR3 (/TAS) Q8H102 (/TAS) Q8H102 (/TAS) Q9C690 (/TAS) Q9C690 (/TAS) Q9C8P8 (/TAS) Q9C8P8 (/TAS)
(2 more)
Regulation of stomatal movement GO:0010119
Any process that modulates the frequency, rate or extent of stomatal movement.
4 Q8H102 (/IDA) Q8H102 (/IDA) Q9C690 (/IDA) Q9C690 (/IDA)
Cuticle development GO:0042335
The chemical reactions and pathways resulting in the formation of a cuticle, the outer layer of some animals and plants, which acts to prevent water loss.
4 Q9C690 (/IMP) Q9C690 (/IMP) Q9C8P8 (/IMP) Q9C8P8 (/IMP)
Photoperiodism, flowering GO:0048573
A change from the vegetative to the reproductive phase as a result of detection of, or exposure to, a period of light or dark of a given length. The length of the period of light or dark required to initiate the change is set relative to a particular duration known as the 'critical day length'. The critical day length varies between species.
4 Q66GR3 (/IMP) Q66GR3 (/IMP) Q9C690 (/IMP) Q9C690 (/IMP)
Negative regulation of gene expression GO:0010629
Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
2 F4IQ66 (/IDA) F4IQ66 (/IDA)
Cellular response to abscisic acid stimulus GO:0071215
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an abscisic acid stimulus.
2 F4IQ66 (/IEP) F4IQ66 (/IEP)

There are 2 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
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
4 F4IQ66 (/IDA) F4IQ66 (/IDA) Q9C690 (/IDA) Q9C690 (/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.
2 Q8H102 (/IDA) Q8H102 (/IDA)
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