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:

"
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 633175: Small COPII coat 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 9 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
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
5 O04834 (/ISS) O80489 (/ISS) Q01474 (/ISS) Q95SY7 (/ISS) Q9VD29 (/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).
4 Q01474 (/IPI) Q9CQC9 (/IPI) Q9NR31 (/IPI) Q9QVY3 (/IPI)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
3 Q559R0 (/ISS) Q95SY7 (/ISS) Q9VD29 (/ISS)
Scaffold protein binding GO:0097110
Interacting selectively and non-covalently with a scaffold protein. Scaffold proteins are crucial regulators of many key signaling pathways. Although not strictly defined in function, they are known to interact and/or bind with multiple members of a signaling pathway, tethering them into complexes.
2 Q95SY7 (/IPI) Q9VD29 (/IPI)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 P20606 (/IDA)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 Q59S78 (/IGI)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 Q01475 (/ISM)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 Q9Y6B6 (/TAS)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
1 Q59S78 (/IDA)

There are 34 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
Cell morphogenesis GO:0000902
The developmental process in which the size or shape of a cell is generated and organized.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Regulation of COPII vesicle coating GO:0003400
Any process that modulates the rate, frequency, or extent of the addition of COPII proteins and adaptor proteins to ER membranes during the formation of transport vesicles, forming a vesicle coat.
2 Q95SY7 (/ISS) Q9VD29 (/ISS)
ER to Golgi vesicle-mediated transport GO:0006888
The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi.
2 Q01474 (/TAS) Q9Y6B6 (/TAS)
Endoplasmic reticulum organization GO:0007029
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the endoplasmic reticulum.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Larval chitin-based cuticle development GO:0008363
Synthesis and deposition of a chitin-based larval cuticle. The insect larval cuticle is a secretion from epidermal cells that is shed at each molt. An example of this is found in Drosophila melanogaster.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Protein secretion GO:0009306
The controlled release of proteins from a cell.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Embryonic heart tube development GO:0035050
The process whose specific outcome is the progression of the embryonic heart tube over time, from its formation to the mature structure. The heart tube forms as the heart rudiment from the heart field.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Chitin-based larval cuticle pattern formation GO:0035293
The process that gives rise to the patterns of cell differentiation in the chitin-based larval cuticle. An example of this is found in Drosophila melanogaster.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Chitin-based cuticle development GO:0040003
Synthesis and deposition of a chitin-based noncellular, hardened, or membranous secretion from an epithelial sheet. An example of this process is found in Drosophila melanogaster.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Positive regulation of cuticle pigmentation GO:0048081
Any process that activates or increases the frequency, rate or extent of establishment of a pattern of pigment in the cuticle of an organism.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Positive regulation of dendrite morphogenesis GO:0050775
Any process that activates or increases the frequency, rate or extent of dendrite morphogenesis.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Positive regulation of protein exit from endoplasmic reticulum GO:0070863
Any process that activates or increases the frequency, rate or extent of directed movement of proteins from the endoplasmic reticulum.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Protein targeting to plasma membrane GO:0072661
The process of directing proteins towards the plasma membrane; usually uses signals contained within the protein.
2 Q95SY7 (/IMP) Q9VD29 (/IMP)
Mitochondrial fission GO:0000266
The division of a mitochondrion within a cell to form two or more separate mitochondrial compartments.
1 P20606 (/IGI)
Antigen processing and presentation of peptide antigen via MHC class I GO:0002474
The process in which an antigen-presenting cell expresses a peptide antigen on its cell surface in association with an MHC class I protein complex. Class I here refers to classical class I molecules.
1 Q9Y6B6 (/TAS)
Regulation of COPII vesicle coating GO:0003400
Any process that modulates the rate, frequency, or extent of the addition of COPII proteins and adaptor proteins to ER membranes during the formation of transport vesicles, forming a vesicle coat.
1 P20606 (/IDA)
Intracellular protein transport GO:0006886
The directed movement of proteins in a cell, including the movement of proteins between specific compartments or structures within a cell, such as organelles of a eukaryotic cell.
1 Q01475 (/IMP)
ER to Golgi vesicle-mediated transport GO:0006888
The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi.
1 Q59S78 (/IGI)
ER to Golgi vesicle-mediated transport GO:0006888
The directed movement of substances from the endoplasmic reticulum (ER) to the Golgi, mediated by COP II vesicles. Small COP II coated vesicles form from the ER and then fuse directly with the cis-Golgi. Larger structures are transported along microtubules to the cis-Golgi.
1 Q01475 (/IMP)
Nuclear envelope organization GO:0006998
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the nuclear envelope.
1 Q01475 (/IMP)
Mitochondrial membrane organization GO:0007006
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a mitochondrial membrane, either of the lipid bilayer surrounding a mitochondrion.
1 P20606 (/IMP)
Small GTPase mediated signal transduction GO:0007264
Any series of molecular signals in which a small monomeric GTPase relays one or more of the signals.
1 Q01475 (/ISM)
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.
1 Q6PBX2 (/IMP)
Embryo development ending in birth or egg hatching GO:0009792
The process whose specific outcome is the progression of an embryo over time, from zygote formation until the end of the embryonic life stage. The end of the embryonic life stage is organism-specific and may be somewhat arbitrary; for mammals it is usually considered to be birth, for insects the hatching of the first instar larva from the eggshell.
1 Q23445 (/IMP)
Vesicle organization GO:0016050
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a vesicle.
1 P20606 (/IDA)
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 P36536 (/IDA)
Antigen processing and presentation of exogenous peptide antigen via MHC class II GO:0019886
The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class II protein complex. The peptide antigen is typically, but not always, processed from a whole protein.
1 Q9Y6B6 (/TAS)
Intestinal cholesterol absorption GO:0030299
Uptake of cholesterol into the blood by absorption from the small intestine.
1 Q6PBX2 (/IMP)
Organ growth GO:0035265
The increase in size or mass of an organ. Organs are commonly observed as visibly distinct structures, but may also exist as loosely associated clusters of cells that function together as to perform a specific function.
1 Q6PBX2 (/IMP)
Single-organism membrane organization GO:0044802
A process which results in the assembly, arrangement of constituent parts, or disassembly of a membrane, involving only one organism.
1 P20606 (/IMP)
COPII vesicle coating GO:0048208
The addition of COPII proteins and adaptor proteins to ER membranes during the formation of transport vesicles, forming a vesicle coat.
1 Q9Y6B6 (/TAS)
Embryonic viscerocranium morphogenesis GO:0048703
The process in which the anatomical structures of the viscerocranium are generated and organized during the embryonic phase. The viscerocranium is the part of the skull comprising the facial bones.
1 Q6PBX2 (/IMP)
Regulation of cargo loading into COPII-coated vesicle GO:1901301
Any process that modulates the frequency, rate or extent of cargo loading into COPII-coated vesicle.
1 P36536 (/IMP)
Negative regulation of cargo loading into COPII-coated vesicle GO:1901303
Any process that stops, prevents or reduces the frequency, rate or extent of cargo loading into a COPII-coated vesicle.
1 P36536 (/IDA)

There are 20 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
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).
3 P36536 (/IDA) Q01474 (/IDA) Q01475 (/IDA)
Endoplasmic reticulum membrane GO:0005789
The lipid bilayer surrounding the endoplasmic reticulum.
3 Q01475 (/TAS) Q9QVY3 (/TAS) Q9Y6B6 (/TAS)
COPII vesicle coat GO:0030127
One of two multimeric complexes that forms a membrane vesicle coat. COPII is best characterized in S. cerevisiae, where the subunits are called Sar1p, Sec13p, Sec31p, Sec23p, and Sec24p. Vesicles with COPII coats are found associated with endoplasmic reticulum (ER) membranes at steady state.
3 Q559R0 (/ISS) Q95SY7 (/ISS) Q9VD29 (/ISS)
Endoplasmic reticulum exit site GO:0070971
An endoplasmic reticulum part at which COPII-coated vesicles are produced.
3 P20606 (/IDA) Q95SY7 (/IDA) Q9VD29 (/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 O04834 (/IDA) Q01474 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q01475 (/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 P36536 (/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 Q01474 (/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 Q9Y6B6 (/TAS)
Chloroplast GO:0009507
A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.
1 O80489 (/IDA)
ER to Golgi transport vesicle membrane GO:0012507
The lipid bilayer surrounding a vesicle transporting substances from the endoplasmic reticulum to the Golgi.
1 Q9Y6B6 (/TAS)
Sarcoplasmic reticulum GO:0016529
A fine reticular network of membrane-limited elements that pervades the sarcoplasm of a muscle cell; continuous over large portions of the cell and with the nuclear envelope; that part of the endoplasmic reticulum specialized for calcium release, uptake and storage.
1 P36536 (/IDA)
Extrinsic component of membrane GO:0019898
The component of a membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region.
1 Q01474 (/IDA)
Maurer's cleft GO:0020036
A disk-like structure that appears at the periphery of a red blood cell infected by an apicomplexan parasite, characterized by a translucent lumen and an electron-dense coat of variable thickness; often appears to be tethered to the host cell membrane by fibrous connections with the erythrocyte cytoskeleton.
1 Q8I1S0 (/IDA)
COPII vesicle coat GO:0030127
One of two multimeric complexes that forms a membrane vesicle coat. COPII is best characterized in S. cerevisiae, where the subunits are called Sar1p, Sec13p, Sec31p, Sec23p, and Sec24p. Vesicles with COPII coats are found associated with endoplasmic reticulum (ER) membranes at steady state.
1 P20606 (/IDA)
COPII vesicle coat GO:0030127
One of two multimeric complexes that forms a membrane vesicle coat. COPII is best characterized in S. cerevisiae, where the subunits are called Sar1p, Sec13p, Sec31p, Sec23p, and Sec24p. Vesicles with COPII coats are found associated with endoplasmic reticulum (ER) membranes at steady state.
1 Q01475 (/ISO)
ER-mitochondrion membrane contact site GO:0044233
A zone of apposition between endoplasmic-reticulum and mitochondrial membranes, structured by bridging complexes. These contact sites are thought to facilitate inter-organelle calcium and phospholipid exchange.
1 P20606 (/IDA)
Phagocytic vesicle GO:0045335
A membrane-bounded intracellular vesicle that arises from the ingestion of particulate material by phagocytosis.
1 Q559R0 (/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 Q9NR31 (/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 P36536 (/ISO)
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