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:

"
Winged helix-like DNA-binding domain superfamily/Winged 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 263: Interferon regulatory factor 3

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 24 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
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
3 P70671 (/IPI) P70671 (/IPI) Q14653 (/IPI)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
3 P70671 (/IDA) P70671 (/IDA) Q14653 (/IDA)
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 Q3U9K6 (/IDA) Q3U9K6 (/IDA)
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 P70671 (/ISO) P70671 (/ISO)
DNA-binding transcription factor activity, RNA polymerase II-specific GO:0000981
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 RNA polymerase II-transcribed gene to modulate transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
2 P70671 (/IMP) P70671 (/IMP)
DNA-binding transcription repressor activity, RNA polymerase II-specific GO:0001227
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 RNA polymerase II-transcribed gene to repress or decrease transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
2 Q3U9K6 (/IDA) Q3U9K6 (/IDA)
DNA-binding transcription activator activity, RNA polymerase II-specific GO:0001228
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 RNA polymerase II-transcribed gene to activate or increase transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
2 P70671 (/ISO) P70671 (/ISO)
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 Q14653 (/IPI) Q764M6 (/IPI)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
2 P70671 (/ISO) P70671 (/ISO)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
2 P70671 (/ISO) P70671 (/ISO)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
2 P70671 (/ISO) P70671 (/ISO)
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 P70671 (/ISO) P70671 (/ISO)
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.
1 Q14653 (/IMP)
DNA-binding transcription factor activity, RNA polymerase II-specific GO:0000981
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 RNA polymerase II-transcribed gene to modulate transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
1 Q14653 (/ISA)
DNA-binding transcription factor activity, RNA polymerase II-specific GO:0000981
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 RNA polymerase II-transcribed gene to modulate transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
1 Q14653 (/ISM)
DNA-binding transcription factor activity, RNA polymerase II-specific GO:0000981
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 RNA polymerase II-transcribed gene to modulate transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
1 Q14653 (/NAS)
DNA-binding transcription activator activity, RNA polymerase II-specific GO:0001228
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 RNA polymerase II-transcribed gene to activate or increase transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
1 Q14653 (/IC)
DNA-binding transcription activator activity, RNA polymerase II-specific GO:0001228
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 RNA polymerase II-transcribed gene to activate or increase transcription. Regulatory regions include promoters (proximal and distal) and enhancers. Genes are transcriptional units.
1 Q14653 (/IMP)
DNA binding GO:0003677
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
1 Q14653 (/NAS)
Transcription coregulator activity GO:0003712
A protein or a member of a complex that interacts specifically and non-covalently with a DNA-bound DNA-binding transcription factor to either activate or repress the transcription of specific genes. Coregulators often act by altering chromatin structure and modifications. For example, one class of transcription coregulators modifies chromatin structure through covalent modification of histones. A second ATP-dependent class modifies the conformation of chromatin. A third class modulates interactions of DNA-binding transcription factor with other transcription coregulators.
1 Q14653 (/TAS)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
1 Q14653 (/IPI)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
1 Q14653 (/IPI)
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.
1 Q14653 (/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.
1 C0IXK2 (/IDA)

There are 47 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
Positive regulation of type I interferon production GO:0032481
Any process that activates or increases the frequency, rate, or extent of type I interferon production. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
5 P70671 (/ISS) P70671 (/ISS) Q4JF28 (/ISS) Q4JF28 (/ISS) Q764M6 (/ISS)
TRIF-dependent toll-like receptor signaling pathway GO:0035666
Any series of molecular signals generated as a consequence of binding to a toll-like receptor where the TRIF adaptor mediates transduction of the signal. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response.
5 P70671 (/ISS) P70671 (/ISS) Q4JF28 (/ISS) Q4JF28 (/ISS) Q764M6 (/ISS)
Positive regulation of interferon-alpha production GO:0032727
Any process that activates or increases the frequency, rate, or extent of interferon-alpha production.
4 Q14653 (/ISS) Q4JF28 (/ISS) Q4JF28 (/ISS) Q764M6 (/ISS)
Positive regulation of interferon-beta production GO:0032728
Any process that activates or increases the frequency, rate, or extent of interferon-beta production.
4 Q14653 (/ISS) Q4JF28 (/ISS) Q4JF28 (/ISS) Q764M6 (/ISS)
Defense response to virus GO:0051607
Reactions triggered in response to the presence of a virus that act to protect the cell or organism.
4 Q14653 (/ISS) Q4JF28 (/ISS) Q4JF28 (/ISS) Q764M6 (/ISS)
Positive regulation of interferon-beta production GO:0032728
Any process that activates or increases the frequency, rate, or extent of interferon-beta production.
3 P70671 (/TAS) P70671 (/TAS) Q14653 (/TAS)
Response to bacterium GO:0009617
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 stimulus from a bacterium.
2 P70671 (/IDA) P70671 (/IDA)
Regulation of gene expression GO:0010468
Any process that modulates 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 P70671 (/IGI) P70671 (/IGI)
Lipopolysaccharide-mediated signaling pathway GO:0031663
A series of molecular signals initiated by the binding of a lipopolysaccharide (LPS) to a receptor on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription. Lipopolysaccharides are major components of the outer membrane of Gram-negative bacteria, making them prime targets for recognition by the immune system.
2 P70671 (/IDA) P70671 (/IDA)
Positive regulation of type I interferon production GO:0032481
Any process that activates or increases the frequency, rate, or extent of type I interferon production. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
2 P70671 (/ISO) P70671 (/ISO)
Response to lipopolysaccharide GO:0032496
Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
2 P70671 (/IDA) P70671 (/IDA)
Positive regulation of interferon-alpha production GO:0032727
Any process that activates or increases the frequency, rate, or extent of interferon-alpha production.
2 P70671 (/IMP) P70671 (/IMP)
Positive regulation of interferon-beta production GO:0032728
Any process that activates or increases the frequency, rate, or extent of interferon-beta production.
2 P70671 (/IMP) P70671 (/IMP)
TRIF-dependent toll-like receptor signaling pathway GO:0035666
Any series of molecular signals generated as a consequence of binding to a toll-like receptor where the TRIF adaptor mediates transduction of the signal. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response.
2 P70671 (/ISO) P70671 (/ISO)
Positive regulation of I-kappaB kinase/NF-kappaB signaling GO:0043123
Any process that activates or increases the frequency, rate or extent of I-kappaB kinase/NF-kappaB signaling.
2 P70671 (/ISO) P70671 (/ISO)
Response to exogenous dsRNA GO:0043330
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 an exogenous double-stranded RNA stimulus.
2 P70671 (/IDA) P70671 (/IDA)
Type I interferon biosynthetic process GO:0045351
The chemical reactions and pathways resulting in the formation of any type I interferon. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
2 P70671 (/IGI) P70671 (/IGI)
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 P70671 (/IMP) P70671 (/IMP)
Positive regulation of transcription by RNA polymerase II GO:0045944
Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
2 P70671 (/ISO) P70671 (/ISO)
Positive regulation of cytokine secretion GO:0050715
Any process that activates or increases the frequency, rate or extent of the regulated release of cytokines from a cell.
2 P70671 (/ISO) P70671 (/ISO)
Regulation of inflammatory response GO:0050727
Any process that modulates the frequency, rate or extent of the inflammatory response, the immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents.
2 P70671 (/IGI) P70671 (/IGI)
Defense response to virus GO:0051607
Reactions triggered in response to the presence of a virus that act to protect the cell or organism.
2 P70671 (/IMP) P70671 (/IMP)
Type I interferon signaling pathway GO:0060337
A series of molecular signals initiated by the binding of a type I interferon to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
2 P70671 (/IMP) P70671 (/IMP)
Positive regulation of type I interferon-mediated signaling pathway GO:0060340
Any process that increases the rate, frequency or extent of a type I interferon-mediated signaling pathway. A type I interferon-mediated signaling pathway is the series of molecular events generated as a consequence of a type I interferon binding to a cell surface receptor.
2 P70671 (/IMP) P70671 (/IMP)
Cellular response to lipopolysaccharide GO:0071222
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 lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
2 P70671 (/IDA) P70671 (/IDA)
Programmed necrotic cell death GO:0097300
A necrotic cell death process that results from the activation of endogenous cellular processes, such as signaling involving death domain receptors or Toll-like receptors.
2 P70671 (/IMP) P70671 (/IMP)
Negative regulation of transcription by RNA polymerase II GO:0000122
Any process that stops, prevents, or reduces the frequency, rate or extent of transcription mediated by RNA polymerase II.
1 C0IXK2 (/IDA)
Transcription by RNA polymerase II GO:0006366
The synthesis of RNA from a DNA template by RNA polymerase II (RNAP II), originating at an RNA polymerase II promoter. Includes transcription of messenger RNA (mRNA) and certain small nuclear RNAs (snRNAs).
1 Q14653 (/TAS)
Apoptotic process GO:0006915
A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
1 Q14653 (/TAS)
Cellular response to DNA damage stimulus GO:0006974
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 damage to its DNA from environmental insults or errors during metabolism.
1 Q14653 (/TAS)
Regulation of type I interferon production GO:0032479
Any process that modulates the frequency, rate, or extent of interferon type I production. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
1 Q14653 (/TAS)
Negative regulation of type I interferon production GO:0032480
Any process that stops, prevents, or reduces the frequency, rate, or extent of type I interferon production. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
1 Q14653 (/TAS)
Positive regulation of type I interferon production GO:0032481
Any process that activates or increases the frequency, rate, or extent of type I interferon production. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
1 Q14653 (/IDA)
Positive regulation of type I interferon production GO:0032481
Any process that activates or increases the frequency, rate, or extent of type I interferon production. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
1 Q14653 (/TAS)
TRIF-dependent toll-like receptor signaling pathway GO:0035666
Any series of molecular signals generated as a consequence of binding to a toll-like receptor where the TRIF adaptor mediates transduction of the signal. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response.
1 Q14653 (/IDA)
TRIF-dependent toll-like receptor signaling pathway GO:0035666
Any series of molecular signals generated as a consequence of binding to a toll-like receptor where the TRIF adaptor mediates transduction of the signal. Toll-like receptors directly bind pattern motifs from a variety of microbial sources to initiate innate immune response.
1 Q14653 (/TAS)
MDA-5 signaling pathway GO:0039530
Any series of molecular signals generated as a consequence of the cytoplasmic pattern recognition receptor (PRR) MDA-5 (also known as IFIH1) binding to viral RNA. MDA-5 detects RNA synthesized during active viral replication and triggers a signaling pathway to protect the host against viral infection, for example by inducing the expression of antiviral cytokines.
1 Q14653 (/TAS)
Positive regulation of I-kappaB kinase/NF-kappaB signaling GO:0043123
Any process that activates or increases the frequency, rate or extent of I-kappaB kinase/NF-kappaB signaling.
1 Q5XIB0 (/IMP)
Negative regulation of interferon-beta biosynthetic process GO:0045358
Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of interferon-beta.
1 C0IXK2 (/IDA)
Positive regulation of transcription by RNA polymerase II GO:0045944
Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
1 Q14653 (/IDA)
Positive regulation of transcription by RNA polymerase II GO:0045944
Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
1 Q14653 (/IMP)
Negative regulation of defense response to virus by host GO:0050689
Any host process that results in the inhibition of antiviral immune response mechanisms, thereby facilitating viral replication. The host is defined as the larger of the organisms involved in a symbiotic interaction.
1 C0IXK2 (/IDA)
Positive regulation of cytokine secretion GO:0050715
Any process that activates or increases the frequency, rate or extent of the regulated release of cytokines from a cell.
1 Q5XIB0 (/IMP)
Interferon-gamma-mediated signaling pathway GO:0060333
A series of molecular signals initiated by the binding of interferon-gamma to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Interferon gamma is the only member of the type II interferon found so far.
1 Q14653 (/TAS)
Type I interferon signaling pathway GO:0060337
A series of molecular signals initiated by the binding of a type I interferon to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
1 Q14653 (/TAS)
Cellular response to exogenous dsRNA GO:0071360
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 exogenous double-stranded RNA stimulus.
1 Q5XIB0 (/IEP)
Macrophage apoptotic process GO:0071888
Any apoptotic process in a macrophage, a mononuclear phagocyte present in a variety of tissues.
1 Q14653 (/TAS)

There are 8 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
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
10 M0QYX3 (/IDA) M0QZB7 (/IDA) M0R205 (/IDA) M0R205 (/IDA) M0R3C2 (/IDA) M0R3C2 (/IDA) M0R3E9 (/IDA) M0R3E9 (/IDA) M0R3E9 (/IDA) Q14653 (/IDA)
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 C0IXK2 (/IDA) P70671 (/IDA) P70671 (/IDA) Q14653 (/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.
3 P70671 (/TAS) P70671 (/TAS) Q14653 (/TAS)
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.
2 P70671 (/ISO) P70671 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 P70671 (/ISO) P70671 (/ISO)
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 P70671 (/ISO) P70671 (/ISO)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q14653 (/TAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q14653 (/IDA)
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