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.
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FunFam 983: Rho family GTPase

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 3 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.
4 Q00246 (/IDA) Q00246 (/IDA) Q5A904 (/IDA) Q5A904 (/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).
2 Q23862 (/IPI) Q9GPR7 (/IPI)
Protein kinase binding GO:0019901
Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate.
1 P34147 (/IPI)

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
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.
2 Q23862 (/IMP) Q9GPR7 (/IMP)
Septum digestion after cytokinesis GO:0000920
The process of physically separating the septal cell wall material by enzymatic digestion, that occurs after daughter cells are separated by cytokinesis.
2 Q5A904 (/IMP) Q5A904 (/IMP)
Maintenance of cell polarity GO:0030011
The maintenance of established anisotropic intracellular organization or cell growth patterns.
2 Q00246 (/IGI) Q00246 (/IGI)
Regulation of formin-nucleated actin cable assembly GO:0090337
Any process that modulates the rate, frequency, or extent of formin-nucleated actin cable assembly. Formin-nucleated actin cable assembly is the aggregation, arrangement and bonding together of a set of components to form a formin-nucleated actin cable. A formin-nucleated actin cable is an actin filament bundle that consists of short filaments organized into bundles of uniform polarity, and is nucleated by formins.
2 Q00246 (/IPI) Q00246 (/IPI)
Positive regulation of formin-nucleated actin cable assembly GO:0090338
Any process that increases the rate, frequency, or extent of formin-nucleated actin cable assembly. Formin-nucleated actin cable assembly is the aggregation, arrangement and bonding together of a set of components to form a formin-nucleated actin cable. A formin-nucleated actin cable is an actin filament bundle that consists of short filaments organized into bundles of uniform polarity, and is nucleated by formins.
2 Q00246 (/IGI) Q00246 (/IGI)
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.
1 Q9GPR7 (/IMP)
Pinocytosis GO:0006907
An endocytosis process that results in the uptake of liquid material by cells from their external environment; literally 'cell drinking'. Liquid is enclosed in vesicles, called pinosomes, formed by invagination of the plasma membrane.
1 Q9GPR7 (/IMP)
Phagocytosis GO:0006909
A vesicle-mediated transport process that results in the engulfment of external particulate material by phagocytes and their delivery to the lysosome. The particles are initially contained within phagocytic vacuoles (phagosomes), which then fuse with primary lysosomes to effect digestion of the particles.
1 Q9GPR7 (/IMP)
Protein localization GO:0008104
Any process in which a protein is transported to, or maintained in, a specific location.
1 Q9GPR7 (/IMP)
Response to bacterium GO:0009617
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus from a bacterium.
1 Q9GPR7 (/IMP)
Sexual reproduction GO:0019953
A reproduction process that creates a new organism by combining the genetic material of two gametes, which may come from two organisms or from a single organism, in the case of self-fertilizing hermaphrodites, e.g. C. elegans, or self-fertilization in plants. It occurs both in eukaryotes and prokaryotes: in multicellular eukaryotic organisms, an individual is created anew; in prokaryotes, the initial cell has additional or transformed genetic material. In a process called genetic recombination, genetic material (DNA) originating from two gametes join up so that homologous sequences are aligned with each other, and this is followed by exchange of genetic information. After the new recombinant chromosome is formed, it is passed on to progeny.
1 Q23862 (/IEP)
Asexual reproduction GO:0019954
The biological process in which new individuals are produced by either a single cell or a group of cells, in the absence of any sexual process.
1 Q23862 (/IMP)
Sorocarp development GO:0030587
The process whose specific outcome is the progression of the sorocarp over time, from its formation to the mature structure. The process begins with the aggregation of individual cells and ends with the mature sorocarp. The sorocarp is a structure containing a spore-bearing sorus that sits on top of a stalk. An example of this process is found in Dictyostelium discoideum.
1 Q23862 (/IMP)
Regulation of actin filament polymerization GO:0030833
Any process that modulates the frequency, rate or extent of the assembly of actin filaments by the addition of actin monomers to a filament.
1 Q9GPR7 (/IMP)
Cortical cytoskeleton organization GO:0030865
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures in the cell cortex, i.e. just beneath the plasma membrane.
1 Q23862 (/IGI)
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.
1 Q23862 (/TAS)
Positive regulation of cytokinesis GO:0032467
Any process that activates or increases the frequency, rate or extent of the division of the cytoplasm of a cell, and its separation into two daughter cells.
1 Q23862 (/IGI)
Defense response to bacterium GO:0042742
Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
1 Q9GPR7 (/IMP)
Chemotaxis to cAMP GO:0043327
The directed movement of a motile cell or organism in response to the presence of 3',5'-cAMP.
1 Q23862 (/IMP)
Endosomal lumen acidification GO:0048388
Any process that reduces the pH of the endosomal lumen, measured by the concentration of the hydrogen ion.
1 Q9GPR7 (/IMP)
Protein localization to cell cortex GO:0072697
A process in which a protein is transported to, or maintained in, the cell cortex.
1 Q23862 (/IMP)

There are 17 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.
2 Q00246 (/IDA) Q00246 (/IDA)
Hyphal tip GO:0001411
The end, or tip, of a fungal hypha, where polarized growth occurs during hyphal elongation.
2 Q5A904 (/IDA) Q5A904 (/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).
2 Q00246 (/HDA) Q00246 (/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.
2 Q00246 (/IDA) Q00246 (/IDA)
Cellular bud tip GO:0005934
The end of a cellular bud distal to the site of attachment to the mother cell.
2 Q5A904 (/IDA) Q5A904 (/IDA)
Cellular bud neck GO:0005935
The constriction between the mother cell and daughter cell (bud) in an organism that reproduces by budding.
2 Q00246 (/HDA) Q00246 (/HDA)
Cellular bud neck GO:0005935
The constriction between the mother cell and daughter cell (bud) in an organism that reproduces by budding.
2 Q00246 (/IDA) Q00246 (/IDA)
Cell periphery GO:0071944
The part of a cell encompassing the cell cortex, the plasma membrane, and any external encapsulating structures.
2 Q00246 (/HDA) Q00246 (/HDA)
Contractile vacuole GO:0000331
A specialized vacuole of eukaryotic cells, especially Protozoa, that fills with water from the cytoplasm and then discharges this externally by the opening of contractile vacuole pores. Its function is probably osmoregulatory.
1 Q9GPR7 (/IDA)
Lysosome GO:0005764
A small lytic vacuole that has cell cycle-independent morphology and is found in most animal cells and that contains a variety of hydrolases, most of which have their maximal activities in the pH range 5-6. The contained enzymes display latency if properly isolated. About 40 different lysosomal hydrolases are known and lysosomes have a great variety of morphologies and functions.
1 Q9GPR7 (/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 Q9GPR7 (/IDA)
Golgi apparatus GO:0005794
A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
1 Q9GPR7 (/IDA)
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 Q23862 (/HDA)
Cell cortex GO:0005938
The region of a cell that lies just beneath the plasma membrane and often, but not always, contains a network of actin filaments and associated proteins.
1 Q23862 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q9GPR7 (/IDA)
Cell trailing edge GO:0031254
The area of a motile cell opposite to the direction of movement.
1 Q23862 (/IDA)
Cleavage furrow GO:0032154
The cleavage furrow is a plasma membrane invagination at the cell division site. The cleavage furrow begins as a shallow groove and eventually deepens to divide the cytoplasm.
1 Q23862 (/IDA)