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 75: Transcription factor bHLH113 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.
8 Q7XJU1 (/ISS) Q7XJU2 (/ISS) Q7XJU2 (/ISS) Q8VZ22 (/ISS) Q8VZ22 (/ISS) Q94JL3 (/ISS) Q94JL3 (/ISS) Q9M0X8 (/ISS)
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).
7 Q7XJU1 (/IPI) Q7XJU2 (/IPI) Q7XJU2 (/IPI) Q8VZ22 (/IPI) Q8VZ22 (/IPI) Q94JL3 (/IPI) Q94JL3 (/IPI)
RNA polymerase II proximal promoter sequence-specific DNA binding GO:0000978
Interacting selectively and non-covalently with a specific upstream regulatory DNA sequence (transcription factor recognition sequence or binding site) located in the proximal promoter of a gene transcribed by RNA polymerase II. The proximal promoter is in cis with and relatively close to the core promoter.
2 Q94JL3 (/IDA) Q94JL3 (/IDA)
Sequence-specific DNA binding GO:0043565
Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
2 Q94JL3 (/IDA) Q94JL3 (/IDA)

There are 7 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
Cellular response to water deprivation GO:0042631
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 deprivation of water.
2 Q94JL3 (/IEP) Q94JL3 (/IEP)
Positive regulation of transcription, DNA-templated GO:0045893
Any process that activates or increases the frequency, rate or extent of cellular DNA-templated transcription.
2 Q94JL3 (/IDA) Q94JL3 (/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 Q94JL3 (/IEP) Q94JL3 (/IEP)
Cellular response to salt stress GO:0071472
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 a stimulus indicating an increase or decrease in the concentration of salt (particularly but not exclusively sodium and chloride ions) in the environment.
2 Q94JL3 (/IEP) Q94JL3 (/IEP)
Regulation of proline metabolic process GO:2000214
Any process that modulates the frequency, rate or extent of proline metabolic process.
2 Q94JL3 (/IMP) Q94JL3 (/IMP)
Regulation of reactive oxygen species metabolic process GO:2000377
Any process that modulates the frequency, rate or extent of reactive oxygen species metabolic process.
2 Q94JL3 (/IMP) Q94JL3 (/IMP)
Response to gibberellin GO:0009739
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 gibberellin stimulus.
1 Q7XJU1 (/IEP)

There are 1 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.
3 Q94JL3 (/IDA) Q94JL3 (/IDA) Q9M0X8 (/IDA)
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