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:

"
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 105322: Reticulon-4 receptor-like 2

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 20 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).
14 A0A0R4IGJ3 (/IPI) A0A0R4ILI9 (/IPI) A0A0R4IRH5 (/IPI) A8BBJ2 (/IPI) F1QA76 (/IPI) F1QPB1 (/IPI) Q6WZD2 (/IPI) Q6X3Y5 (/IPI) Q80WD1 (/IPI) Q86UN2 (/IPI)
(4 more)
Receptor activity GO:0004872
Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
6 Q7M6Z0 (/ISS) Q80WD0 (/ISS) Q80WD1 (/ISS) Q8K0S5 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Heparin binding GO:0008201
Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues.
5 Q80WD0 (/ISS) Q86UN2 (/ISS) Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Chondroitin sulfate binding GO:0035374
Interacting selectively and non-covalently with chondroitin sulfate, a glycosaminoglycan made up of two alternating monosaccharides: D-glucuronic acid (GlcA) and N-acetyl-D-galactosamine (GalNAc).
5 Q80WD0 (/ISS) Q86UN2 (/ISS) Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Neuregulin receptor activity GO:0038131
Combining with a neuregulin, a member of the EGF family of growth factors, and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Ganglioside GM1 binding GO:1905573
Interacting selectively and non-covalently with ganglioside GM1.
3 Q99M75 (/ISS) Q99PI8 (/ISS) Q9N0E3 (/ISS)
Ganglioside GT1b binding GO:1905576
Interacting selectively and non-covalently with ganglioside GT1b.
3 Q99M75 (/ISS) Q99PI8 (/ISS) Q9N0E3 (/ISS)
Receptor activity GO:0004872
Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
2 Q86UN2 (/IDA) Q86UN3 (/IDA)
Receptor activity GO:0004872
Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
2 Q80WD1 (/IMP) Q99M75 (/IMP)
Receptor activity GO:0004872
Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
2 Q7M6Z0 (/ISO) Q8K0S5 (/ISO)
Chondroitin sulfate binding GO:0035374
Interacting selectively and non-covalently with chondroitin sulfate, a glycosaminoglycan made up of two alternating monosaccharides: D-glucuronic acid (GlcA) and N-acetyl-D-galactosamine (GalNAc).
2 Q8K0S5 (/IDA) Q99PI8 (/IDA)
Receptor activity GO:0004872
Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
1 Q9BZR6 (/NAS)
Receptor activity GO:0004872
Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
1 Q99M75 (/TAS)
Heparin binding GO:0008201
Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues.
1 Q99PI8 (/IDA)
Heparin binding GO:0008201
Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues.
1 Q8K0S5 (/IMP)
Neuregulin receptor activity GO:0038131
Combining with a neuregulin, a member of the EGF family of growth factors, and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
1 Q99PI8 (/IDA)
Ganglioside GM1 binding GO:1905573
Interacting selectively and non-covalently with ganglioside GM1.
1 Q9BZR6 (/IDA)
Ganglioside GM1 binding GO:1905573
Interacting selectively and non-covalently with ganglioside GM1.
1 Q99PI8 (/ISO)
Ganglioside GT1b binding GO:1905576
Interacting selectively and non-covalently with ganglioside GT1b.
1 Q9BZR6 (/IDA)
Ganglioside GT1b binding GO:1905576
Interacting selectively and non-covalently with ganglioside GT1b.
1 Q99PI8 (/ISO)

There are 28 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 neuron projection development GO:0010977
Any process that decreases 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).
8 Q7M6Z0 (/ISS) Q80WD0 (/ISS) Q80WD1 (/ISS) Q86UN2 (/ISS) Q86UN3 (/ISS) Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Cell surface receptor signaling pathway GO:0007166
A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
5 Q7M6Z0 (/ISS) Q86UN3 (/ISS) Q99PI8 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Negative regulation of neuron projection development GO:0010977
Any process that decreases 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).
5 Q7M6Z0 (/IMP) Q80WD1 (/IMP) Q8K0S5 (/IMP) Q99M75 (/IMP) Q99PI8 (/IMP)
Negative regulation of axon regeneration GO:0048681
Any process that stops, prevents, or reduces the frequency, rate or extent of axon regeneration.
5 Q80WD0 (/ISS) Q86UN2 (/ISS) Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
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 F1QPB1 (/IGI) Q6X3Y5 (/IGI) X1WD08 (/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.
3 F1QPB1 (/IMP) Q6X3Y5 (/IMP) X1WD08 (/IMP)
Corpus callosum development GO:0022038
The process whose specific outcome is the progression of the corpus callosum over time, from its formation to the mature structure. The corpus callosum is a thick bundle of nerve fibers comprising a commissural plate connecting the two cerebral hemispheres. It consists of contralateral axon projections that provide communication between the right and left cerebral hemispheres.
3 Q7M6Z0 (/IMP) Q8K0S5 (/IMP) Q99PI8 (/IMP)
Corpus callosum development GO:0022038
The process whose specific outcome is the progression of the corpus callosum over time, from its formation to the mature structure. The corpus callosum is a thick bundle of nerve fibers comprising a commissural plate connecting the two cerebral hemispheres. It consists of contralateral axon projections that provide communication between the right and left cerebral hemispheres.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Neuronal signal transduction GO:0023041
The process in which an activated neuronal cell receptor conveys information down a signaling pathway, resulting in a change in the function or state of a cell. This process may be intracellular or intercellular.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Negative regulation of axon extension GO:0030517
Any process that stops, prevents, or reduces the frequency, rate or extent of axon outgrowth.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Axon regeneration GO:0031103
The regrowth of axons following their loss or damage.
3 Q7M6Z0 (/TAS) Q86UN2 (/TAS) Q86UN3 (/TAS)
Positive regulation of Rho protein signal transduction GO:0035025
Any process that activates or increases the frequency, rate or extent of Rho protein signal transduction.
3 Q99M75 (/ISS) Q99PI8 (/ISS) Q9N0E3 (/ISS)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Peripheral nervous system neuron axonogenesis GO:0048936
Generation of a long process from a neuron whose cell body resides in the peripheral nervous system. The axon carries action potential from the cell body towards target cells.
3 F1QPB1 (/IGI) Q6X3Y5 (/IGI) X1WD08 (/IGI)
Peripheral nervous system neuron axonogenesis GO:0048936
Generation of a long process from a neuron whose cell body resides in the peripheral nervous system. The axon carries action potential from the cell body towards target cells.
3 F1QPB1 (/IMP) Q6X3Y5 (/IMP) X1WD08 (/IMP)
C-terminal protein lipidation GO:0006501
The covalent attachment of a lipid group to the carboxy terminus of a protein.
2 Q86UN2 (/TAS) Q86UN3 (/TAS)
Cell surface receptor signaling pathway GO:0007166
A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
2 Q80WD1 (/IMP) Q99M75 (/IMP)
Cell surface receptor signaling pathway GO:0007166
A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
2 Q80WD0 (/NAS) Q80WD1 (/NAS)
Negative regulation of axon regeneration GO:0048681
Any process that stops, prevents, or reduces the frequency, rate or extent of axon regeneration.
2 Q8K0S5 (/IMP) Q99PI8 (/IMP)
Posterior lateral line development GO:0048916
The process whose specific outcome is the progression of the posterior lateral line over time, from its formation to the mature structure. The posterior lateral line consists of small sensory patches (neuromasts) located superficially on the skin or just under the skin in fluid-filled canals on the body and trunk of all fishes and most amphibians. The posterior lateral line develops from cranial ectodermal placodes situated behind the ear.
2 A0A0R4IRH5 (/IGI) A8BBJ2 (/IGI)
Posterior lateral line neuromast deposition GO:0048922
The process in which a migrating neuromast primordium deposits clusters of undifferentiated cells (proneuromasts) along its migratory path in the developing posterior lateral line.
2 A0A0R4IRH5 (/IGI) A8BBJ2 (/IGI)
Negative regulation of axonogenesis GO:0050771
Any process that stops, prevents, or reduces the frequency, rate or extent of axonogenesis.
2 Q99M75 (/TAS) Q9BZR6 (/TAS)
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 Q99PI8 (/IDA)
Neuronal signal transduction GO:0023041
The process in which an activated neuronal cell receptor conveys information down a signaling pathway, resulting in a change in the function or state of a cell. This process may be intracellular or intercellular.
1 Q99PI8 (/IDA)
Negative regulation of axon extension GO:0030517
Any process that stops, prevents, or reduces the frequency, rate or extent of axon outgrowth.
1 Q99PI8 (/IDA)
Positive regulation of Rho protein signal transduction GO:0035025
Any process that activates or increases the frequency, rate or extent of Rho protein signal transduction.
1 Q9BZR6 (/IMP)
Positive regulation of Rho protein signal transduction GO:0035025
Any process that activates or increases the frequency, rate or extent of Rho protein signal transduction.
1 Q99PI8 (/ISO)
Positive regulation of GTPase activity GO:0043547
Any process that activates or increases the activity of a GTPase.
1 Q99PI8 (/IDA)

There are 34 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
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
7 Q80WD0 (/IDA) Q80WD1 (/IDA) Q86UN2 (/IDA) Q86UN3 (/IDA) Q99M75 (/IDA) Q99PI8 (/IDA) Q9BZR6 (/IDA)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
5 Q7M6Z0 (/ISS) Q86UN3 (/ISS) Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/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.
5 Q7M6Z0 (/ISS) Q86UN3 (/ISS) Q99PI8 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/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.
4 Q7M6Z0 (/ISS) Q80WD0 (/ISS) Q80WD1 (/ISS) Q8K0S5 (/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.
3 Q86UN2 (/TAS) Q86UN3 (/TAS) Q9BZR6 (/TAS)
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.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
3 Q7M6Z0 (/ISO) Q8K0S5 (/ISO) Q99PI8 (/ISO)
Cell surface GO:0009986
The external part of the cell wall and/or plasma membrane.
3 Q7M6Z0 (/ISS) Q8K0S5 (/ISS) Q9N0E3 (/ISS)
Anchored component of external side of plasma membrane GO:0031362
The component of the plasma membrane consisting of the gene products that are tethered to the external side of the membrane only by a covalently attached anchor, such as a lipid group embedded in the membrane. Gene products with peptide sequences that are embedded in the membrane are excluded from this grouping.
3 Q99M75 (/ISS) Q99PI8 (/ISS) Q9N0E3 (/ISS)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Dendritic shaft GO:0043198
Cylindric portion of the dendrite, directly stemming from the perikaryon, and carrying the dendritic spines.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/ISS)
Axonal growth cone GO:0044295
The migrating motile tip of a growing nerve cell axon.
3 Q99M75 (/ISS) Q9BZR6 (/ISS) Q9N0E3 (/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.
3 Q80WD0 (/IDA) Q80WD1 (/IDA) Q99M75 (/IDA)
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.
3 Q80WD0 (/IDA) Q86UN2 (/IDA) Q86UN3 (/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.
3 Q86UN2 (/IDA) Q86UN3 (/IDA) Q9BZR6 (/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.
3 Q7M6Z0 (/ISO) Q8K0S5 (/ISO) Q99PI8 (/ISO)
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.
2 Q86UN2 (/TAS) Q86UN3 (/TAS)
External side of plasma membrane GO:0009897
The leaflet of the plasma membrane that faces away from the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
2 Q80WD0 (/IDA) Q80WD1 (/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.
2 Q7M6Z0 (/ISS) Q86UN3 (/ISS)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
2 Q80WD1 (/IDA) Q99PI8 (/IDA)
Perikaryon GO:0043204
The portion of the cell soma (neuronal cell body) that excludes the nucleus.
2 Q7M6Z0 (/ISS) Q86UN3 (/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.
2 Q7M6Z0 (/ISO) Q8K0S5 (/ISO)
Endoplasmic reticulum GO:0005783
The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
1 Q9BZR6 (/IDA)
Endoplasmic reticulum GO:0005783
The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
1 Q99PI8 (/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 Q99PI8 (/IDA)
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 Q99PI8 (/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 Q80WD1 (/IDA)
Growth cone GO:0030426
The migrating motile tip of a growing nerve cell axon or dendrite.
1 Q99PI8 (/IDA)
Anchored component of external side of plasma membrane GO:0031362
The component of the plasma membrane consisting of the gene products that are tethered to the external side of the membrane only by a covalently attached anchor, such as a lipid group embedded in the membrane. Gene products with peptide sequences that are embedded in the membrane are excluded from this grouping.
1 Q9BZR6 (/IMP)
Anchored component of external side of plasma membrane GO:0031362
The component of the plasma membrane consisting of the gene products that are tethered to the external side of the membrane only by a covalently attached anchor, such as a lipid group embedded in the membrane. Gene products with peptide sequences that are embedded in the membrane are excluded from this grouping.
1 Q99PI8 (/ISO)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 Q99PI8 (/IDA)
Dendritic shaft GO:0043198
Cylindric portion of the dendrite, directly stemming from the perikaryon, and carrying the dendritic spines.
1 Q99PI8 (/IDA)
Perikaryon GO:0043204
The portion of the cell soma (neuronal cell body) that excludes the nucleus.
1 Q80WD1 (/IDA)
Axonal growth cone GO:0044295
The migrating motile tip of a growing nerve cell axon.
1 Q99PI8 (/IDA)