The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
".

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 7075: Spectrin, beta, non-erythrocytic 1

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 16 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 complex binding GO:0032403
Interacting selectively and non-covalently with any protein complex (a complex of two or more proteins that may include other nonprotein molecules).
4 A0A0G2JZY6 (/IPI) A0A0G2K8W9 (/IPI) G3V6S0 (/IPI) Q6XD99 (/IPI)
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 Q01082 (/IPI) Q62261 (/IPI)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 Q01082 (/IDA)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 Q62261 (/ISO)
Actin binding GO:0003779
Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments.
1 Q01082 (/TAS)
Ras guanyl-nucleotide exchange factor activity GO:0005088
Stimulates the exchange of guanyl nucleotides associated with a GTPase of the Ras superfamily. Under normal cellular physiological conditions, the concentration of GTP is higher than that of GDP, favoring the replacement of GDP by GTP in association with the GTPase.
1 Q01082 (/TAS)
Structural constituent of cytoskeleton GO:0005200
The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
1 Q01082 (/IMP)
Structural constituent of cytoskeleton GO:0005200
The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
1 Q62261 (/ISO)
Structural constituent of cytoskeleton GO:0005200
The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
1 Q01082 (/TAS)
Ankyrin binding GO:0030506
Interacting selectively and non-covalently with ankyrin, a 200 kDa cytoskeletal protein that attaches other cytoskeletal proteins to integral membrane proteins.
1 Q01082 (/IPI)
Ankyrin binding GO:0030506
Interacting selectively and non-covalently with ankyrin, a 200 kDa cytoskeletal protein that attaches other cytoskeletal proteins to integral membrane proteins.
1 Q62261 (/ISO)
Ankyrin binding GO:0030506
Interacting selectively and non-covalently with ankyrin, a 200 kDa cytoskeletal protein that attaches other cytoskeletal proteins to integral membrane proteins.
1 Q01082 (/NAS)
Cadherin binding GO:0045296
Interacting selectively and non-covalently with cadherin, a type I membrane protein involved in cell adhesion.
1 Q01082 (/IDA)
Cadherin binding GO:0045296
Interacting selectively and non-covalently with cadherin, a type I membrane protein involved in cell adhesion.
1 Q62261 (/ISO)
GTPase binding GO:0051020
Interacting selectively and non-covalently with a GTPase, any enzyme that catalyzes the hydrolysis of GTP.
1 Q01082 (/IPI)
GTPase binding GO:0051020
Interacting selectively and non-covalently with a GTPase, any enzyme that catalyzes the hydrolysis of GTP.
1 Q62261 (/ISO)

There are 21 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
Protein targeting to plasma membrane GO:0072661
The process of directing proteins towards the plasma membrane; usually uses signals contained within the protein.
2 Q01082 (/IMP) Q62261 (/IMP)
MAPK cascade GO:0000165
An intracellular protein kinase cascade containing at least a MAPK, a MAPKK and a MAP3K. The cascade can also contain two additional tiers: the upstream MAP4K and the downstream MAP Kinase-activated kinase (MAPKAPK). The kinases in each tier phosphorylate and activate the kinases in the downstream tier to transmit a signal within a cell.
1 Q01082 (/TAS)
Mitotic cytokinesis GO:0000281
A cell cycle process that results in the division of the cytoplasm of a cell after mitosis, resulting in the separation of the original cell into two daughter cells.
1 Q01082 (/IMP)
Mitotic cytokinesis GO:0000281
A cell cycle process that results in the division of the cytoplasm of a cell after mitosis, resulting in the separation of the original cell into two daughter cells.
1 Q62261 (/ISO)
ER to Golgi vesicle-mediated transport GO:0006888
The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi.
1 Q01082 (/TAS)
Plasma membrane organization GO:0007009
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the plasma membrane.
1 Q01082 (/IMP)
Plasma membrane organization GO:0007009
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the plasma membrane.
1 Q62261 (/ISO)
Common-partner SMAD protein phosphorylation GO:0007182
The process of introducing a phosphate group on to a common-partner SMAD protein. A common partner SMAD protein binds to pathway-restricted SMAD proteins forming a complex that translocates to the nucleus.
1 Q62261 (/IDA)
SMAD protein import into nucleus GO:0007184
The directed movement of a SMAD proteins from the cytoplasm into the nucleus. Pathway-restricted SMAD proteins and common-partner SMAD proteins are involved in the transforming growth factor beta receptor signaling pathways.
1 Q62261 (/IDA)
Axon guidance GO:0007411
The chemotaxis process that directs the migration of an axon growth cone to a specific target site in response to a combination of attractive and repulsive cues.
1 Q01082 (/TAS)
Golgi to plasma membrane protein transport GO:0043001
The directed movement of proteins from the Golgi to the plasma membrane in transport vesicles that move from the trans-Golgi network to the plasma membrane.
1 Q01082 (/IMP)
Golgi to plasma membrane protein transport GO:0043001
The directed movement of proteins from the Golgi to the plasma membrane in transport vesicles that move from the trans-Golgi network to the plasma membrane.
1 Q62261 (/ISO)
Membrane assembly GO:0071709
The aggregation, arrangement and bonding together of a set of components to form a membrane.
1 Q01082 (/IMP)
Membrane assembly GO:0071709
The aggregation, arrangement and bonding together of a set of components to form a membrane.
1 Q62261 (/ISO)
Protein targeting to plasma membrane GO:0072661
The process of directing proteins towards the plasma membrane; usually uses signals contained within the protein.
1 Q62261 (/ISO)
Positive regulation of interleukin-2 secretion GO:1900042
Any process that activates or increases the frequency, rate or extent of interleukin-2 secretion.
1 Q01082 (/IMP)
Positive regulation of interleukin-2 secretion GO:1900042
Any process that activates or increases the frequency, rate or extent of interleukin-2 secretion.
1 Q62261 (/ISO)
Regulation of protein localization to plasma membrane GO:1903076
Any process that modulates the frequency, rate or extent of protein localization to plasma membrane.
1 Q01082 (/IGI)
Regulation of protein localization to plasma membrane GO:1903076
Any process that modulates the frequency, rate or extent of protein localization to plasma membrane.
1 Q62261 (/ISO)
Positive regulation of protein localization to plasma membrane GO:1903078
Any process that activates or increases the frequency, rate or extent of protein localization to plasma membrane.
1 Q01082 (/IMP)
Positive regulation of protein localization to plasma membrane GO:1903078
Any process that activates or increases the frequency, rate or extent of protein localization to plasma membrane.
1 Q62261 (/ISO)

There are 21 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
Protein complex GO:0043234
A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical.
4 A0A0G2JZY6 (/IDA) A0A0G2K8W9 (/IDA) G3V6S0 (/IDA) Q6XD99 (/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 Q62261 (/IDA)
Nucleolus GO:0005730
A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.
1 Q01082 (/IDA)
Nucleolus GO:0005730
A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.
1 Q62261 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q01082 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q62261 (/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.
1 Q01082 (/TAS)
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 Q62261 (/IDA)
Spectrin GO:0008091
Membrane associated dimeric protein (240 and 220 kDa) of erythrocytes. Forms a complex with ankyrin, actin and probably other components of the membrane cytoskeleton, so that there is a mesh of proteins underlying the plasma membrane, potentially restricting the lateral mobility of integral proteins.
1 Q01082 (/TAS)
Postsynaptic density GO:0014069
An electron dense network of proteins within and adjacent to the postsynaptic membrane in asymetric synapses. 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 Q62261 (/IDA)
Spectrin-associated cytoskeleton GO:0014731
The part of the cytoskeleton composed of spectrin, protein 4.1 and ankyrin. Spectrin-associated cytoskeleton is associated with the plasma membrane.
1 Q01082 (/NAS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q62261 (/IDA)
Axolemma GO:0030673
The portion of the plasma membrane surrounding an axon; it is a specialized trilaminar random mosaic of protein molecules floating within a fluid matrix of highly mobile phospholipid molecules, 7-8 nm in thickness.
1 Q62261 (/IDA)
Axolemma GO:0030673
The portion of the plasma membrane surrounding an axon; it is a specialized trilaminar random mosaic of protein molecules floating within a fluid matrix of highly mobile phospholipid molecules, 7-8 nm in thickness.
1 Q01082 (/ISS)
Cortical cytoskeleton GO:0030863
The portion of the cytoskeleton that lies just beneath the plasma membrane.
1 Q62261 (/IDA)
M band GO:0031430
The midline of aligned thick filaments in a sarcomere; location of specific proteins that link thick filaments. Depending on muscle type the M band consists of different numbers of M lines.
1 Q62261 (/IDA)
Cuticular plate GO:0032437
A dense network of actin filaments found beneath the apical cell surface of hair cells, and into which stereocilia are inserted.
1 Q62261 (/IDA)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
1 Q01082 (/IDA)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
1 Q62261 (/ISO)
Exocytic vesicle GO:0070382
A transport vesicle that mediates transport from an intracellular compartment to the plasma membrane, and fuses with the plasma membrane to release various cargo molecules, such as proteins or hormones, by exocytosis.
1 Q28297 (/IDA)
Actin cytoskeleton of dendritic spine GO:0098938
The actin cytoskeleton that is part of a dendritic spine.
1 Q6XD99 (/IDA)