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:

"
Immunoglobulins
".

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 134781: Contactin 2 (Axonal)

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).
5 P12960 (/IPI) P14781 (/IPI) Q61330 (/IPI) Q63198 (/IPI) Q9JMB8 (/IPI)
Glycoprotein binding GO:0001948
Interacting selectively and non-covalently with a glycoprotein, a protein that contains covalently bound glycose (monosaccharide) residues. These also include proteoglycans.
2 P12960 (/IDA) Q61330 (/IDA)
Carbohydrate binding GO:0030246
Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
2 P12960 (/IDA) Q61330 (/IDA)
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).
1 P28685 (/IDA)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
1 Q02246 (/TAS)
Protein self-association GO:0043621
Interacting selectively and non-covalently with a domain within the same polypeptide.
1 Q61330 (/IPI)
Cell adhesion molecule binding GO:0050839
Interacting selectively and non-covalently with a cell adhesion molecule.
1 P28685 (/IPI)

There are 62 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
Neuron migration GO:0001764
The characteristic movement of an immature neuron from germinal zones to specific positions where they will reside as they mature.
4 A4JYG8 (/IMP) F1QCV0 (/IMP) Q61330 (/IMP) Q9W675 (/IMP)
Neuron migration GO:0001764
The characteristic movement of an immature neuron from germinal zones to specific positions where they will reside as they mature.
3 A4JYG8 (/IGI) F1QCV0 (/IGI) Q9W675 (/IGI)
C-terminal protein lipidation GO:0006501
The covalent attachment of a lipid group to the carboxy terminus of a protein.
3 O94779 (/TAS) Q8IWV2 (/TAS) Q9P232 (/TAS)
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.
3 P97527 (/NAS) Q02246 (/NAS) Q12860 (/NAS)
Axonogenesis GO:0007409
De novo generation of a long process of a neuron, that carries efferent (outgoing) action potentials from the cell body towards target cells. Refers to the morphogenesis or creation of shape or form of the developing axon.
3 A4JYG8 (/IMP) F1QCV0 (/IMP) Q9W675 (/IMP)
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.
3 P14781 (/TAS) P28685 (/TAS) Q8IWV2 (/TAS)
Central nervous system development GO:0007417
The process whose specific outcome is the progression of the central nervous system over time, from its formation to the mature structure. The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the brain and spinal cord. In those invertebrates with a central nervous system it typically consists of a brain, cerebral ganglia and a nerve cord.
3 A4JYG8 (/IMP) F1QCV0 (/IMP) Q9W675 (/IMP)
Positive regulation of axon extension GO:0045773
Any process that activates or increases the frequency, rate or extent of axon extension.
3 A4JYG8 (/IMP) F1QCV0 (/IMP) Q9W675 (/IMP)
Axon extension involved in regeneration GO:0048677
Long distance growth of a single axon process involved in regeneration of the neuron.
3 A4JYG8 (/IMP) F1QCV0 (/IMP) Q9W675 (/IMP)
Presynaptic membrane organization GO:0097090
A process which results in the assembly, arrangement of constituent parts, or disassembly of a presynaptic membrane, including any proteins associated with the membrane, but excluding other cellular components. A presynaptic membrane is a specialized area of membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fiber with which the axon terminal establishes a synaptic junction.
3 P22063 (/ISS) P28685 (/ISS) Q61330 (/ISS)
Nervous system development GO:0007399
The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
2 Q62845 (/ISS) Q69Z26 (/ISS)
Brain development GO:0007420
The process whose specific outcome is the progression of the brain over time, from its formation to the mature structure. Brain development begins with patterning events in the neural tube and ends with the mature structure that is the center of thought and emotion. The brain is responsible for the coordination and control of bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.).
2 Q69Z26 (/ISS) Q8IWV2 (/ISS)
Neuron projection development GO:0031175
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).
2 P12960 (/IGI) Q61330 (/IGI)
Neuron projection development GO:0031175
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).
2 Q69Z26 (/ISS) Q8IWV2 (/ISS)
Negative regulation of neuron differentiation GO:0045665
Any process that stops, prevents, or reduces the frequency, rate or extent of neuron differentiation.
2 Q62845 (/ISS) Q69Z26 (/ISS)
Microtubule cytoskeleton organization GO:0000226
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 microtubules and their associated proteins.
1 Q61330 (/IMP)
Neuron cell-cell adhesion GO:0007158
The attachment of a neuron to another cell via adhesion molecules.
1 P28685 (/IDA)
Neuron cell-cell adhesion GO:0007158
The attachment of a neuron to another cell via adhesion molecules.
1 Q8IWV2 (/TAS)
Cell-matrix adhesion GO:0007160
The binding of a cell to the extracellular matrix via adhesion molecules.
1 P22063 (/IDA)
Notch signaling pathway GO:0007219
A series of molecular signals initiated by the binding of an extracellular ligand to the receptor Notch on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription.
1 Q63198 (/TAS)
Nervous system development GO:0007399
The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
1 Q62682 (/IDA)
Nervous system development GO:0007399
The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
1 Q8IWV2 (/IMP)
Nervous system development GO:0007399
The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
1 Q69Z26 (/ISO)
Axonogenesis GO:0007409
De novo generation of a long process of a neuron, that carries efferent (outgoing) action potentials from the cell body towards target cells. Refers to the morphogenesis or creation of shape or form of the developing axon.
1 P22063 (/IDA)
Axonogenesis GO:0007409
De novo generation of a long process of a neuron, that carries efferent (outgoing) action potentials from the cell body towards target cells. Refers to the morphogenesis or creation of shape or form of the developing axon.
1 Q8IWV2 (/TAS)
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 Q61330 (/IGI)
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 Q61330 (/IMP)
Axonal fasciculation GO:0007413
The collection of axons into a bundle of rods, known as a fascicle.
1 Q61330 (/IMP)
Axonal fasciculation GO:0007413
The collection of axons into a bundle of rods, known as a fascicle.
1 Q8IWV2 (/TAS)
Brain development GO:0007420
The process whose specific outcome is the progression of the brain over time, from its formation to the mature structure. Brain development begins with patterning events in the neural tube and ends with the mature structure that is the center of thought and emotion. The brain is responsible for the coordination and control of bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.).
1 Q62845 (/IEP)
Sensory perception of sound GO:0007605
The series of events required for an organism to receive an auditory stimulus, convert it to a molecular signal, and recognize and characterize the signal. Sonic stimuli are detected in the form of vibrations and are processed to form a sound.
1 P68500 (/IMP)
Learning GO:0007612
Any process in an organism in which a relatively long-lasting adaptive behavioral change occurs as the result of experience.
1 Q61330 (/IMP)
Adult walking behavior GO:0007628
The behavior of an adult relating to the progression of that organism along the ground by the process of lifting and setting down each leg.
1 Q61330 (/IMP)
Positive regulation of gene expression GO:0010628
Any process that increases 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 (for protein-coding genes) and the translation of that mRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
1 P12960 (/IMP)
Positive regulation of sodium ion transport GO:0010765
Any process that increases the frequency, rate or extent of the directed movement of sodium ions (Na+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
1 P12960 (/IMP)
Regulation of cell morphogenesis involved in differentiation GO:0010769
Any process that modulates the frequency, rate or extent of cell morphogenesis contributing to cell differentiation. Cell morphogenesis involved in differentiation is the change in form (cell shape and size) that occurs when relatively unspecialized cells acquire specialized structural and/or functional features that characterize the cells, tissues, or organs of the mature organism or some other relatively stable phase of the organism's life history.
1 Q61330 (/IMP)
Positive regulation of protein processing GO:0010954
Any process that increases the rate, frequency or extent of protein maturation by peptide bond cleavage.
1 Q61330 (/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 P12960 (/IGI)
Single organismal cell-cell adhesion GO:0016337
The attachment of one cell to another cell via adhesion molecules, where both cells are part of the same organism.
1 Q62682 (/TAS)
Cerebellum development GO:0021549
The process whose specific outcome is the progression of the cerebellum over time, from its formation to the mature structure. The cerebellum is the portion of the brain in the back of the head between the cerebrum and the pons. In mice, the cerebellum controls balance for walking and standing, modulates the force and range of movement and is involved in the learning of motor skills.
1 P12960 (/IMP)
Cerebral cortex GABAergic interneuron migration GO:0021853
The migration of GABAergic interneuron precursors from the subpallium to the cerebral cortex.
1 Q61330 (/IMP)
Central nervous system myelination GO:0022010
The process in which neuronal axons and dendrites become coated with a segmented lipid-rich sheath (myelin) to enable faster and more energetically efficient conduction of electrical impulses. The sheath is formed by the cell membranes of oligodendrocytes in the central nervous system. Adjacent myelin segments are separated by a non-myelinated stretch of axon called a node of Ranvier.
1 Q61330 (/IMP)
Regulation of axon diameter GO:0031133
Any process that modulates the rate, direction or extent of axon growth such that the correct diameter is attained and maintained.
1 Q61330 (/IMP)
Neuron projection development GO:0031175
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 Q62845 (/IDA)
Receptor internalization GO:0031623
A receptor-mediated endocytosis process that results in the movement of receptors from the plasma membrane to the inside of the cell. The process begins when cell surface receptors are monoubiquitinated following ligand-induced activation. Receptors are subsequently taken up into endocytic vesicles from where they are either targeted to the lysosome or vacuole for degradation or recycled back to the plasma membrane.
1 Q61330 (/IDA)
Clustering of voltage-gated potassium channels GO:0045163
The process in which voltage-gated potassium channels become localized together in high densities. In animals, voltage-gated potassium (Kv) channels are clustered beneath the myelin sheath in regions immediately adjacent to paranodes, called juxtaparanodes, and along the inner mesaxon within the internode.
1 Q61330 (/IMP)
Clustering of voltage-gated potassium channels GO:0045163
The process in which voltage-gated potassium channels become localized together in high densities. In animals, voltage-gated potassium (Kv) channels are clustered beneath the myelin sheath in regions immediately adjacent to paranodes, called juxtaparanodes, and along the inner mesaxon within the internode.
1 Q02246 (/ISS)
Negative regulation of neuron differentiation GO:0045665
Any process that stops, prevents, or reduces the frequency, rate or extent of neuron differentiation.
1 Q61330 (/IGI)
Negative regulation of neuron differentiation GO:0045665
Any process that stops, prevents, or reduces the frequency, rate or extent of neuron differentiation.
1 Q8IWV2 (/IMP)
Negative regulation of neuron differentiation GO:0045665
Any process that stops, prevents, or reduces the frequency, rate or extent of neuron differentiation.
1 Q69Z26 (/ISO)
Positive regulation of Notch signaling pathway GO:0045747
Any process that activates or increases the frequency, rate or extent of the Notch signaling pathway.
1 Q9JMB8 (/IDA)
Regulation of synaptic plasticity GO:0048167
A process that modulates synaptic plasticity, the ability of synapses to change as circumstances require. They may alter function, such as increasing or decreasing their sensitivity, or they may increase or decrease in actual numbers.
1 Q8IWV2 (/TAS)
Regulation of neuronal synaptic plasticity GO:0048168
A process that modulates neuronal synaptic plasticity, the ability of neuronal synapses to change as circumstances require. They may alter function, such as increasing or decreasing their sensitivity, or they may increase or decrease in actual numbers.
1 Q61330 (/IMP)
Regulation of astrocyte differentiation GO:0048710
Any process that modulates the frequency, rate or extent of astrocyte differentiation.
1 Q61330 (/IMP)
Positive regulation of peptidyl-tyrosine phosphorylation GO:0050731
Any process that activates or increases the frequency, rate or extent of the phosphorylation of peptidyl-tyrosine.
1 Q63198 (/IMP)
Positive regulation of adenosine receptor signaling pathway GO:0060168
Any process that activates or increases the frequency, rate or extent of the adenosine receptor signaling pathway. The adenosine receptor pathway is the series of molecular signals generated as a consequence of an adenosine receptor binding to one of its physiological ligands.
1 Q61330 (/IMP)
Protein localization to juxtaparanode region of axon GO:0071205
Any process in which a protein is transported to, or maintained at, the juxtaparanode region of an axon.
1 Q61330 (/IGI)
Protein localization to juxtaparanode region of axon GO:0071205
Any process in which a protein is transported to, or maintained at, the juxtaparanode region of an axon.
1 Q61330 (/IMP)
Protein localization to juxtaparanode region of axon GO:0071205
Any process in which a protein is transported to, or maintained at, the juxtaparanode region of an axon.
1 Q02246 (/ISS)
Establishment of protein localization to juxtaparanode region of axon GO:0071206
The directed movement of a protein to the juxtaparanode region of an axon.
1 Q61330 (/IDA)
Presynaptic membrane organization GO:0097090
A process which results in the assembly, arrangement of constituent parts, or disassembly of a presynaptic membrane, including any proteins associated with the membrane, but excluding other cellular components. A presynaptic membrane is a specialized area of membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fiber with which the axon terminal establishes a synaptic junction.
1 Q02246 (/IMP)
Presynaptic membrane organization GO:0097090
A process which results in the assembly, arrangement of constituent parts, or disassembly of a presynaptic membrane, including any proteins associated with the membrane, but excluding other cellular components. A presynaptic membrane is a specialized area of membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fiber with which the axon terminal establishes a synaptic junction.
1 Q61330 (/ISO)

There are 27 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
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.
9 O94779 (/TAS) P12960 (/TAS) P14781 (/TAS) P28685 (/TAS) Q02246 (/TAS) Q63198 (/TAS) Q8IWV2 (/TAS) Q9JMB8 (/TAS) Q9P232 (/TAS)
Extracellular region GO:0005576
The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
3 O94779 (/TAS) Q8IWV2 (/TAS) Q9P232 (/TAS)
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 A0A087WTT8 (/IDA) A0A0A0MQX5 (/IDA) O94779 (/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 P22063 (/IDA) Q9JMB8 (/IDA)
Myelin sheath GO:0043209
An electrically insulating fatty layer that surrounds the axons of many neurons. It is an outgrowth of glial cells: Schwann cells supply the myelin for peripheral neurons while oligodendrocytes supply it to those of the central nervous system.
2 P12960 (/IDA) Q61330 (/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.
1 P68500 (/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 Q02246 (/ISS)
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 Q8IWV2 (/NAS)
Integral component of plasma membrane GO:0005887
The component of the plasma 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 Q02246 (/TAS)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 Q61330 (/IDA)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
1 P22063 (/TAS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q12860 (/TAS)
Axon GO:0030424
The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
1 Q61330 (/IDA)
Axon GO:0030424
The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
1 Q8IWV2 (/NAS)
Node of Ranvier GO:0033268
An axon part that is a gap in the myelin where voltage-gated sodium channels cluster and saltatory conduction is executed.
1 Q61330 (/IDA)
Node of Ranvier GO:0033268
An axon part that is a gap in the myelin where voltage-gated sodium channels cluster and saltatory conduction is executed.
1 Q02246 (/ISS)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 Q61330 (/IDA)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 Q61330 (/IDA)
Myelin sheath GO:0043209
An electrically insulating fatty layer that surrounds the axons of many neurons. It is an outgrowth of glial cells: Schwann cells supply the myelin for peripheral neurons while oligodendrocytes supply it to those of the central nervous system.
1 Q02246 (/ISS)
Juxtaparanode region of axon GO:0044224
A region of an axon near a node of Ranvier that is between the paranode and internode regions.
1 Q61330 (/IDA)
Juxtaparanode region of axon GO:0044224
A region of an axon near a node of Ranvier that is between the paranode and internode regions.
1 Q02246 (/ISS)
Membrane raft GO:0045121
Any of the small (10-200 nm), heterogeneous, highly dynamic, sterol- and sphingolipid-enriched membrane domains that compartmentalize cellular processes. Small rafts can sometimes be stabilized to form larger platforms through protein-protein and protein-lipid interactions.
1 Q63198 (/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 P22063 (/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 Q02246 (/ISS)
Anchored component of plasma membrane GO:0046658
The component of the plasma membrane consisting of the gene products that are tethered to the membrane only by a covalently attached anchor, such as a lipid group, that is embedded in the membrane. Gene products with peptide sequences that are embedded in the membrane are excluded from this grouping.
1 Q62682 (/NAS)
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 Q12860 (/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 P12960 (/ISO)