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 961: Ras-related protein Rab-8B

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 5 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.
5 P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/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).
5 P07560 (/IPI) P07560 (/IPI) P07560 (/IPI) P07560 (/IPI) P07560 (/IPI)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
5 P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
4 P0CY31 (/IGI) P0CY31 (/IGI) P0CY31 (/IGI) P0CY31 (/IGI)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 M9NEE8 (/ISS)

There are 16 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
Golgi to plasma membrane transport GO:0006893
The directed movement of substances from the Golgi to the plasma membrane in transport vesicles that move from the trans-Golgi network to the plasma membrane, where they fuse and release their contents by exocytosis.
9 P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP)
Exocytosis GO:0006887
A process of secretion by a cell that results in the release of intracellular molecules (e.g. hormones, matrix proteins) contained within a membrane-bounded vesicle. Exocytosis can occur either by full fusion, when the vesicle collapses into the plasma membrane, or by a kiss-and-run mechanism that involves the formation of a transient contact, a pore, between a granule (for exemple of chromaffin cells) and the plasma membrane. The latter process most of the time leads to only partial secretion of the granule content. Exocytosis begins with steps that prepare vesicles for fusion with the membrane (tethering and docking) and ends when molecules are secreted from the cell.
5 P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA)
Vesicle fusion GO:0006906
Fusion of the membrane of a transport vesicle with its target membrane.
5 P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP)
Autophagy GO:0006914
The cellular catabolic process in which cells digest parts of their own cytoplasm; allows for both recycling of macromolecular constituents under conditions of cellular stress and remodeling the intracellular structure for cell differentiation.
5 P07560 (/IGI) P07560 (/IGI) P07560 (/IGI) P07560 (/IGI) P07560 (/IGI)
Autophagy GO:0006914
The cellular catabolic process in which cells digest parts of their own cytoplasm; allows for both recycling of macromolecular constituents under conditions of cellular stress and remodeling the intracellular structure for cell differentiation.
5 P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP)
Membrane addition at site of cytokinesis GO:0007107
Any process involved in the net addition of membrane at the site of cytokinesis; includes vesicle recruitment and fusion, local lipid synthesis and insertion.
5 P07560 (/IGI) P07560 (/IGI) P07560 (/IGI) P07560 (/IGI) P07560 (/IGI)
Membrane addition at site of cytokinesis GO:0007107
Any process involved in the net addition of membrane at the site of cytokinesis; includes vesicle recruitment and fusion, local lipid synthesis and insertion.
5 P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP)
Ascospore-type prospore assembly GO:0031321
During ascospore formation, the process in which each haploid nucleus becomes encapsulated by a double membrane.
5 P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP) P07560 (/IMP)
Exocytosis GO:0006887
A process of secretion by a cell that results in the release of intracellular molecules (e.g. hormones, matrix proteins) contained within a membrane-bounded vesicle. Exocytosis can occur either by full fusion, when the vesicle collapses into the plasma membrane, or by a kiss-and-run mechanism that involves the formation of a transient contact, a pore, between a granule (for exemple of chromaffin cells) and the plasma membrane. The latter process most of the time leads to only partial secretion of the granule content. Exocytosis begins with steps that prepare vesicles for fusion with the membrane (tethering and docking) and ends when molecules are secreted from the cell.
4 P0CY31 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP)
Vesicle targeting GO:0006903
The process in which vesicles are directed to specific destination membranes. Targeting involves coordinated interactions among cytoskeletal elements (microtubules or actin filaments), motor proteins, molecules at the vesicle membrane and target membrane surfaces, and vesicle cargo.
4 P0CY31 (/IGI) P0CY31 (/IGI) P0CY31 (/IGI) P0CY31 (/IGI)
Vesicle fusion GO:0006906
Fusion of the membrane of a transport vesicle with its target membrane.
4 P0CY31 (/IGI) P0CY31 (/IGI) P0CY31 (/IGI) P0CY31 (/IGI)
Protein secretion GO:0009306
The controlled release of proteins from a cell.
4 P0CY31 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP)
Cellular response to drug GO:0035690
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 drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
4 P0CY31 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP) P0CY31 (/IMP)
Regulation of synaptic growth at neuromuscular junction GO:0008582
Any process that modulates the frequency, rate or extent of synaptic growth at neuromuscular junctions.
1 M9NEE8 (/IMP)
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.
1 M9NEE8 (/ISS)
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.
1 M9NEE8 (/ISS)

There are 19 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
Incipient cellular bud site GO:0000131
The portion of the budding yeast plasma membrane where a daughter cell will emerge. The yeast marks this spot with bud-site selection proteins before bud emergence occurs. Actin is polarized to this spot just prior to and during bud emergence.
9 P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA)
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
5 P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA)
Mitochondrial outer membrane GO:0005741
The outer, i.e. cytoplasm-facing, lipid bilayer of the mitochondrial envelope.
5 P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA)
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).
5 P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA)
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.
5 P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA)
Cellular bud neck GO:0005935
The constriction between the mother cell and daughter cell (bud) in an organism that reproduces by budding.
5 P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA) P07560 (/HDA)
Transport vesicle GO:0030133
Any of the vesicles of the constitutive secretory pathway, which carry cargo from the endoplasmic reticulum to the Golgi, between Golgi cisternae, from the Golgi to the ER (retrograde transport) or to destinations within or outside the cell.
5 P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA)
Vesicle GO:0031982
Any small, fluid-filled, spherical organelle enclosed by membrane.
5 P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA)
Mating projection tip GO:0043332
The apex of the mating projection in unicellular fungi exposed to mating pheromone; site of polarized growth.
5 P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/IDA) P07560 (/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.
4 P0CY31 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA)
Cellular bud tip GO:0005934
The end of a cellular bud distal to the site of attachment to the mother cell.
4 P0CY31 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA)
Spitzenkorper GO:0031521
Structure within the hyphal tip of filamentous fungi that acts as an organizing center for hyphal tip growth; may function to supply vesicles to the elongating tip and/or to organize cytoskeletal microfilaments.
4 P0CY31 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA) P0CY31 (/IDA)
Synaptic vesicle GO:0008021
A secretory organelle, typically 50 nm in diameter, of presynaptic nerve terminals; accumulates in high concentrations of neurotransmitters and secretes these into the synaptic cleft by fusion with the 'active zone' of the presynaptic plasma membrane.
1 M9NEE8 (/HDA)
Vesicle GO:0031982
Any small, fluid-filled, spherical organelle enclosed by membrane.
1 M9NEE8 (/ISS)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 M9NEE8 (/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 M9NEE8 (/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 M9NEE8 (/IDA)
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.
1 M9NEE8 (/HDA)
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.
1 M9NEE8 (/IDA)