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:

"
P-loop containing nucleotide triphosphate hydrolases
".

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.
« Back to all FunFams

FunFam 550: ras-related protein Rab-21

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 12 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
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
7 P35282 (/ISS) P35282 (/ISS) P55745 (/ISS) Q17R06 (/ISS) Q6AXT5 (/ISS) Q7PLE8 (/ISS) Q7PLE9 (/ISS)
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).
7 P34142 (/IPI) P35282 (/IPI) P35282 (/IPI) Q7PLE8 (/IPI) Q7PLE9 (/IPI) Q9UL25 (/IPI) Q9UL25 (/IPI)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
5 P35282 (/ISS) P35282 (/ISS) P55745 (/ISS) Q17R06 (/ISS) Q6AXT5 (/ISS)
GDP binding GO:0019003
Interacting selectively and non-covalently with GDP, guanosine 5'-diphosphate.
5 P35282 (/ISS) P35282 (/ISS) P55745 (/ISS) Q17R06 (/ISS) Q6AXT5 (/ISS)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
2 P35282 (/ISO) P35282 (/ISO)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
2 Q9UL25 (/IMP) Q9UL25 (/IMP)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
2 P35282 (/ISO) P35282 (/ISO)
GDP binding GO:0019003
Interacting selectively and non-covalently with GDP, guanosine 5'-diphosphate.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
GDP binding GO:0019003
Interacting selectively and non-covalently with GDP, guanosine 5'-diphosphate.
2 P35282 (/ISO) P35282 (/ISO)
Phosphatidylinositol 3-kinase catalytic subunit binding GO:0036313
Interacting selectively and non-covalently with the catalytic subunit of a phosphatidylinositol 3-kinase. The catalytic subunit catalyzes the addition of a phosphate group to an inositol lipid at the 3' position of the inositol ring.
2 Q7PLE8 (/IPI) Q7PLE9 (/IPI)

There are 19 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
Anterograde axonal transport GO:0008089
The directed movement of organelles or molecules along microtubules from the cell body toward the cell periphery in nerve cell axons.
3 Q6AXT5 (/IDA) Q9UL25 (/IDA) Q9UL25 (/IDA)
Cortical actin cytoskeleton organization GO:0030866
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of actin-based cytoskeletal structures in the cell cortex, i.e. just beneath the plasma membrane.
3 P34142 (/IMP) Q7PLE8 (/IMP) Q7PLE9 (/IMP)
Anterograde axonal transport GO:0008089
The directed movement of organelles or molecules along microtubules from the cell body toward the cell periphery in nerve cell axons.
2 Q9UL25 (/IMP) Q9UL25 (/IMP)
Anterograde axonal transport GO:0008089
The directed movement of organelles or molecules along microtubules from the cell body toward the cell periphery in nerve cell axons.
2 P35282 (/ISO) P35282 (/ISO)
Vesicle-mediated transport GO:0016192
A cellular transport process in which transported substances are moved in membrane-bounded vesicles; transported substances are enclosed in the vesicle lumen or located in the vesicle membrane. The process begins with a step that directs a substance to the forming vesicle, and includes vesicle budding and coating. Vesicles are then targeted to, and fuse with, an acceptor membrane.
2 Q7PLE8 (/ISS) Q7PLE9 (/ISS)
Regulation of exocytosis GO:0017157
Any process that modulates the frequency, rate or extent of exocytosis.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
Regulation of exocytosis GO:0017157
Any process that modulates the frequency, rate or extent of exocytosis.
2 P35282 (/ISO) P35282 (/ISO)
Regulation of axon extension GO:0030516
Any process that modulates the rate, direction or extent of axon extension.
2 P35282 (/ISO) P35282 (/ISO)
Rab protein signal transduction GO:0032482
A series of molecular signals within the cell that are mediated by a member of the Rab family of proteins switching to a GTP-bound active state.
2 Q7PLE8 (/ISS) Q7PLE9 (/ISS)
Positive regulation of receptor-mediated endocytosis GO:0048260
Any process that activates or increases the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport.
2 Q9UL25 (/IMP) Q9UL25 (/IMP)
Positive regulation of receptor-mediated endocytosis GO:0048260
Any process that activates or increases the frequency, rate or extent of receptor mediated endocytosis, the uptake of external materials by cells, utilizing receptors to ensure specificity of transport.
2 P35282 (/ISO) P35282 (/ISO)
Positive regulation of dendrite morphogenesis GO:0050775
Any process that activates or increases the frequency, rate or extent of dendrite morphogenesis.
2 P35282 (/IMP) P35282 (/IMP)
Positive regulation of autophagosome maturation GO:1901098
Any process that activates or increases the frequency, rate or extent of autophagosome maturation.
2 Q7PLE8 (/IMP) Q7PLE9 (/IMP)
Positive regulation of early endosome to late endosome transport GO:2000643
Any process that activates or increases the frequency, rate or extent of early endosome to late endosome transport.
2 Q9UL25 (/IMP) Q9UL25 (/IMP)
Positive regulation of early endosome to late endosome transport GO:2000643
Any process that activates or increases the frequency, rate or extent of early endosome to late endosome transport.
2 P35282 (/ISO) P35282 (/ISO)
Regulation of axon extension GO:0030516
Any process that modulates the rate, direction or extent of axon extension.
1 Q6AXT5 (/IDA)
Filopodium assembly GO:0046847
The assembly of a filopodium, a thin, stiff protrusion extended by the leading edge of a motile cell such as a crawling fibroblast or amoeba, or an axonal growth cone.
1 P34142 (/IMP)
Positive regulation of phagocytosis GO:0050766
Any process that activates or increases the frequency, rate or extent of phagocytosis.
1 P34142 (/IGI)
Positive regulation of phagocytosis GO:0050766
Any process that activates or increases the frequency, rate or extent of phagocytosis.
1 P34142 (/IMP)

There are 26 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
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
3 P35282 (/IDA) P35282 (/IDA) Q6AXT5 (/IDA)
Endosome GO:0005768
A vacuole to which materials ingested by endocytosis are delivered.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
Endosome GO:0005768
A vacuole to which materials ingested by endocytosis are delivered.
2 P35282 (/ISO) P35282 (/ISO)
Early endosome GO:0005769
A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways.
2 Q7PLE8 (/IDA) Q7PLE9 (/IDA)
Trans-Golgi network GO:0005802
The network of interconnected tubular and cisternal structures located within the Golgi apparatus on the side distal to the endoplasmic reticulum, from which secretory vesicles emerge. The trans-Golgi network is important in the later stages of protein secretion where it is thought to play a key role in the sorting and targeting of secreted proteins to the correct destination.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
Trans-Golgi network GO:0005802
The network of interconnected tubular and cisternal structures located within the Golgi apparatus on the side distal to the endoplasmic reticulum, from which secretory vesicles emerge. The trans-Golgi network is important in the later stages of protein secretion where it is thought to play a key role in the sorting and targeting of secreted proteins to the correct destination.
2 P35282 (/ISO) P35282 (/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 Q9UL25 (/TAS) Q9UL25 (/TAS)
Focal adhesion GO:0005925
Small region on the surface of a cell that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments.
2 Q9UL25 (/HDA) Q9UL25 (/HDA)
Cytoplasmic side of plasma membrane GO:0009898
The leaflet the plasma membrane that faces the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
Cytoplasmic side of plasma membrane GO:0009898
The leaflet the plasma membrane that faces the cytoplasm and any proteins embedded or anchored in it or attached to its surface.
2 P35282 (/ISO) P35282 (/ISO)
Vesicle membrane GO:0012506
The lipid bilayer surrounding any membrane-bounded vesicle in the cell.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
Vesicle membrane GO:0012506
The lipid bilayer surrounding any membrane-bounded vesicle in the cell.
2 P35282 (/ISO) P35282 (/ISO)
Early endosome membrane GO:0031901
The lipid bilayer surrounding an early endosome.
2 Q9UL25 (/TAS) Q9UL25 (/TAS)
Vesicle GO:0031982
Any small, fluid-filled, spherical organelle enclosed by membrane.
2 Q7PLE8 (/ISS) Q7PLE9 (/ISS)
Golgi cisterna membrane GO:0032580
The lipid bilayer surrounding any of the thin, flattened compartments that form the central portion of the Golgi complex.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
Golgi cisterna membrane GO:0032580
The lipid bilayer surrounding any of the thin, flattened compartments that form the central portion of the Golgi complex.
2 P35282 (/ISO) P35282 (/ISO)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
2 P35282 (/ISO) P35282 (/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.
2 Q7PLE8 (/HDA) Q7PLE9 (/HDA)
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.
2 P35282 (/ISO) P35282 (/ISO)
Recycling endosome GO:0055037
An organelle consisting of a network of tubules that functions in targeting molecules, such as receptors transporters and lipids, to the plasma membrane.
2 Q7PLE8 (/HDA) Q7PLE9 (/HDA)
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.
2 Q9UL25 (/HDA) Q9UL25 (/HDA)
Cytoplasmic side of early endosome membrane GO:0098559
The side (leaflet) of the early endosome membrane that faces the cytoplasm.
2 Q9UL25 (/IDA) Q9UL25 (/IDA)
Cytoplasmic side of early endosome membrane GO:0098559
The side (leaflet) of the early endosome membrane that faces the cytoplasm.
2 P35282 (/ISO) P35282 (/ISO)
Lipid droplet GO:0005811
An intracellular non-membrane-bounded organelle comprising a matrix of coalesced lipids surrounded by a phospholipid monolayer. May include associated proteins.
1 P34142 (/HDA)
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 Q6AXT5 (/EXP)
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 Q6AXT5 (/IDA)