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:

"
Ribonuclease Inhibitor
".

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 20: Erbin isoform 7

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 7 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).
3 P70587 (/IPI) Q80TH2 (/IPI) Q96RT1 (/IPI)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 Q96RT1 (/IPI)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 Q80TH2 (/ISO)
ErbB-2 class receptor binding GO:0005176
Interacting selectively and non-covalently with the protein-tyrosine kinase receptor Neu/ErbB-2/HER2.
1 Q96RT1 (/TAS)
Structural constituent of cytoskeleton GO:0005200
The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
1 Q96RT1 (/NAS)
Protein C-terminus binding GO:0008022
Interacting selectively and non-covalently with a protein C-terminus, the end of any peptide chain at which the 1-carboxyl function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.
1 P70587 (/IDA)
Protein C-terminus binding GO:0008022
Interacting selectively and non-covalently with a protein C-terminus, the end of any peptide chain at which the 1-carboxyl function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.
1 Q80TE7 (/ISO)

There are 25 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
Negative regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway GO:0070433
Any process that stops, prevents, or reduces the frequency, rate, or extent of the nucleotide-binding oligomerization domain containing 2 (NOD2) pathway.
2 Q80TH2 (/IMP) Q96RT1 (/IMP)
Protein targeting GO:0006605
The process of targeting specific proteins to particular regions of the cell, typically membrane-bounded subcellular organelles. Usually requires an organelle specific protein sequence motif.
1 Q80TH2 (/IDA)
Cell adhesion GO:0007155
The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
1 Q96RT1 (/NAS)
Signal transduction GO:0007165
The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
1 Q96RT1 (/TAS)
Epidermal growth factor receptor signaling pathway GO:0007173
A series of molecular signals initiated by binding of a ligand to the tyrosine kinase receptor EGFR (ERBB1) on the surface of a cell. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
1 Q96RT1 (/TAS)
Integrin-mediated signaling pathway GO:0007229
A series of molecular signals initiated by the binding of extracellular ligand to an integrin on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 Q96RT1 (/NAS)
Positive regulation of neuron projection development GO:0010976
Any process that increases the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
1 P70587 (/IDA)
Positive regulation of neuron projection development GO:0010976
Any process that increases the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
1 Q80TE7 (/ISO)
Response to organic cyclic compound GO:0014070
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 organic cyclic compound stimulus.
1 P70587 (/IEP)
Negative regulation of NF-kappaB transcription factor activity GO:0032088
Any process that stops, prevents, or reduces the frequency, rate or extent of the activity of the transcription factor NF-kappaB.
1 Q96RT1 (/IMP)
Negative regulation of NF-kappaB transcription factor activity GO:0032088
Any process that stops, prevents, or reduces the frequency, rate or extent of the activity of the transcription factor NF-kappaB.
1 Q80TH2 (/ISO)
Response to muramyl dipeptide GO:0032495
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 muramyl dipeptide stimulus. Muramyl dipeptide is derived from peptidoglycan.
1 Q96RT1 (/IMP)
Response to muramyl dipeptide GO:0032495
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 muramyl dipeptide stimulus. Muramyl dipeptide is derived from peptidoglycan.
1 Q80TH2 (/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.
1 Q96RT1 (/IMP)
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.
1 Q80TH2 (/ISO)
ERBB2 signaling pathway GO:0038128
A series of molecular signals initiated by binding of a ligand to a member of the ERBB family of receptors on the surface of a cell, where the signal is transmitted by ERBB2. The pathway ends with regulation of a downstream cellular process, e.g. transcription. ERBB2 receptors are themselves unable to bind to ligands, but act as a signal-amplifying tyrosine kinase within a heterodimeric pair.
1 Q96RT1 (/TAS)
Intermediate filament cytoskeleton organization GO:0045104
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising intermediate filaments and their associated proteins.
1 Q96RT1 (/NAS)
Basal protein localization GO:0045175
Any process in which a protein is transported to, or maintained in, basal regions of the cell.
1 Q96RT1 (/NAS)
Establishment or maintenance of epithelial cell apical/basal polarity GO:0045197
Any cellular process that results in the specification, formation or maintenance of the apicobasal polarity of an epithelial cell.
1 Q96RT1 (/NAS)
Negative regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway GO:0070433
Any process that stops, prevents, or reduces the frequency, rate, or extent of the nucleotide-binding oligomerization domain containing 2 (NOD2) pathway.
1 Q80TH2 (/ISO)
Cellular response to tumor necrosis factor GO:0071356
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 tumor necrosis factor stimulus.
1 Q96RT1 (/IMP)
Cellular response to tumor necrosis factor GO:0071356
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 tumor necrosis factor stimulus.
1 Q80TH2 (/ISO)
Negative regulation of monocyte chemotactic protein-1 production GO:0071638
Any process that stops, prevents, or reduces the frequency, rate, or extent of production of monocyte chemotactic protein-1.
1 Q80TH2 (/IMP)
Regulation of postsynaptic membrane neurotransmitter receptor levels GO:0099072
Any process that regulates the the local concentration of neurotransmitter receptor at the postsynaptic membrane.
1 Q80TH2 (/IDA)
Regulation of postsynaptic membrane neurotransmitter receptor levels GO:0099072
Any process that regulates the the local concentration of neurotransmitter receptor at the postsynaptic membrane.
1 Q80TH2 (/IMP)

There are 37 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.
2 P70587 (/IDA) Q96RT1 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 Q80TE7 (/ISO) Q80TH2 (/ISO)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
2 P70587 (/IDA) Q96RT1 (/IDA)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
2 Q80TE7 (/ISO) Q80TH2 (/ISO)
Basolateral plasma membrane GO:0016323
The region of the plasma membrane that includes the basal end and sides of the cell. Often used in reference to animal polarized epithelial membranes, where the basal membrane is the part attached to the extracellular matrix, or in plant cells, where the basal membrane is defined with respect to the zygotic axis.
2 Q80TH2 (/IDA) Q96RT1 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
2 P70587 (/IDA) Q80TH2 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
2 Q80TE7 (/ISO) Q80TH2 (/ISO)
Basement membrane GO:0005604
A collagen-containing extracellular matrix consisting of a thin layer of dense material found in various animal tissues interposed between the cells and the adjacent connective tissue. It consists of the basal lamina plus an associated layer of reticulin fibers.
1 Q96RT1 (/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.
1 Q96RT1 (/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.
1 Q80TH2 (/ISO)
Plasma membrane GO:0005886
The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
1 Q96RT1 (/TAS)
Basal plasma membrane GO:0009925
The region of the plasma membrane located at the basal end of the cell. Often used in reference to animal polarized epithelial membranes, where the basal membrane is the part attached to the extracellular matrix, or in plant cells, where the basal membrane is defined with respect to the zygotic axis.
1 Q96RT1 (/NAS)
Postsynaptic density GO:0014069
An electron dense network of proteins within and adjacent to the postsynaptic membrane of an asymmetric, neuron-neuron synapse. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
1 P70587 (/IDA)
Postsynaptic density GO:0014069
An electron dense network of proteins within and adjacent to the postsynaptic membrane of an asymmetric, neuron-neuron synapse. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
1 Q80TE7 (/ISO)
Basolateral plasma membrane GO:0016323
The region of the plasma membrane that includes the basal end and sides of the cell. Often used in reference to animal polarized epithelial membranes, where the basal membrane is the part attached to the extracellular matrix, or in plant cells, where the basal membrane is defined with respect to the zygotic axis.
1 Q80TH2 (/ISO)
Nuclear speck GO:0016607
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
1 Q96RT1 (/IDA)
Nuclear speck GO:0016607
A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
1 Q80TH2 (/ISO)
Cell junction GO:0030054
A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
1 Q96RT1 (/IDA)
Cell junction GO:0030054
A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
1 Q80TH2 (/ISO)
Hemidesmosome GO:0030056
A cell-substrate junction (attachment structure) found in epithelial cells that links intermediate filaments to extracellular matrices via transmembrane complexes. In vertebrates, hemidesmosomes mediate contact between the basal side of epithelial cells and the basal lamina. In C. elegans, hemidesmosomes connect epithelial cells to distinct extracellular matrices on both the apical and basal cell surfaces.
1 Q96RT1 (/IDA)
Hemidesmosome GO:0030056
A cell-substrate junction (attachment structure) found in epithelial cells that links intermediate filaments to extracellular matrices via transmembrane complexes. In vertebrates, hemidesmosomes mediate contact between the basal side of epithelial cells and the basal lamina. In C. elegans, hemidesmosomes connect epithelial cells to distinct extracellular matrices on both the apical and basal cell surfaces.
1 Q80TH2 (/ISO)
Filopodium GO:0030175
Thin, stiff, actin-based protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal or dendritic growth cone, or a dendritic shaft.
1 P70587 (/IDA)
Filopodium GO:0030175
Thin, stiff, actin-based protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal or dendritic growth cone, or a dendritic shaft.
1 Q80TE7 (/ISO)
Neuromuscular junction GO:0031594
The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.
1 Q80TH2 (/ISO)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 P70587 (/IDA)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 Q80TE7 (/ISO)
Axon initial segment GO:0043194
Portion of the axon proximal to the neuronal cell body, at the level of the axon hillock. The action potentials that propagate along the axon are generated at the level of this initial segment.
1 P70587 (/IDA)
Axon initial segment GO:0043194
Portion of the axon proximal to the neuronal cell body, at the level of the axon hillock. The action potentials that propagate along the axon are generated at the level of this initial segment.
1 Q80TE7 (/ISO)
Dendritic spine GO:0043197
A small, membranous protrusion from a dendrite that forms a postsynaptic compartment - typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable including \thin\, \stubby\, \mushroom\, and \branched\, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.
1 P70587 (/IDA)
Dendritic spine GO:0043197
A small, membranous protrusion from a dendrite that forms a postsynaptic compartment - typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable including \thin\, \stubby\, \mushroom\, and \branched\, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.
1 Q80TE7 (/ISO)
Synapse GO:0045202
The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
1 P70587 (/IDA)
Synapse GO:0045202
The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
1 Q80TE7 (/ISO)
Postsynapse GO:0098794
The part of a synapse that is part of the post-synaptic cell.
1 Q80TH2 (/IDA)
Glutamatergic synapse GO:0098978
A synapse that uses glutamate as a neurotransmitter.
1 Q80TH2 (/IMP)
Integral component of postsynaptic density membrane GO:0099061
The component of the postsynaptic density 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.
1 P70587 (/IDA)
Integral component of postsynaptic density membrane GO:0099061
The component of the postsynaptic density 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.
1 Q80TE7 (/ISO)
Postsynaptic specialization GO:0099572
A network of proteins within and adjacent to the postsynaptic membrane. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
1 Q80TH2 (/ISO)