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:

"
Functional domain of the splicing factor Prp18
".

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 1: Protein transport protein Sec31A isoform A

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 4 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
Structural molecule activity GO:0005198
The action of a molecule that contributes to the structural integrity of a complex or its assembly within or outside a cell.
5 A0A0B4LEY1 (/ISS) A0A0B4LEZ1 (/ISS) A1Z7J6 (/ISS) A1Z7J7 (/ISS) Q5U0U9 (/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).
2 O94979 (/IPI) O94979 (/IPI)
Calcium-dependent protein binding GO:0048306
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules), in the presence of calcium.
2 O94979 (/IPI) O94979 (/IPI)
Calcium-dependent protein binding GO:0048306
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules), in the presence of calcium.
1 Q3UPL0 (/ISO)

There are 15 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
Positive regulation of innate immune response GO:0045089
Any process that activates or increases the frequency, rate or extent of the innate immune response, the organism's first line of defense against infection.
5 A0A0B4LEY1 (/HMP) A0A0B4LEZ1 (/HMP) A1Z7J6 (/HMP) A1Z7J7 (/HMP) Q5U0U9 (/HMP)
Defense response to Gram-negative bacterium GO:0050829
Reactions triggered in response to the presence of a Gram-negative bacterium that act to protect the cell or organism.
5 A0A0B4LEY1 (/HMP) A0A0B4LEZ1 (/HMP) A1Z7J6 (/HMP) A1Z7J7 (/HMP) Q5U0U9 (/HMP)
COPII-coated vesicle budding GO:0090114
The evagination of an endoplasmic reticulum membrane, resulting in formation of a COPII-coated vesicle.
5 A0A0B4LEY1 (/ISS) A0A0B4LEZ1 (/ISS) A1Z7J6 (/ISS) A1Z7J7 (/ISS) Q5U0U9 (/ISS)
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.
2 O94979 (/TAS) O94979 (/TAS)
Endoplasmic reticulum 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 O94979 (/NAS) O94979 (/NAS)
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.
2 O94979 (/TAS) O94979 (/TAS)
IRE1-mediated unfolded protein response GO:0036498
A series of molecular signals mediated by the endoplasmic reticulum stress sensor IRE1 (Inositol-requiring transmembrane kinase/endonuclease). Begins with activation of IRE1 in response to endoplasmic reticulum (ER) stress, and ends with regulation of a downstream cellular process, e.g. transcription. One target of activated IRE1 is the transcription factor HAC1 in yeast, or XBP1 in mammals; IRE1 cleaves an intron of a mRNA coding for HAC1/XBP1 to generate an activated HAC1/XBP1 transcription factor, which controls the up regulation of UPR-related genes. At least in mammals, IRE1 can also signal through additional intracellular pathways including JNK and NF-kappaB.
2 O94979 (/TAS) O94979 (/TAS)
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.
2 O94979 (/TAS) O94979 (/TAS)
Response to calcium ion GO:0051592
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 calcium ion stimulus.
2 O94979 (/IDA) O94979 (/IDA)
COPII-coated vesicle cargo loading GO:0090110
The formation of a macromolecular complex between the COPII coat proteins and proteins and/or lipoproteins that are going to be transported by the COPII vesicle to the Golgi.
2 O94979 (/IDA) O94979 (/IDA)
Liver development GO:0001889
The process whose specific outcome is the progression of the liver over time, from its formation to the mature structure. The liver is an exocrine gland which secretes bile and functions in metabolism of protein and carbohydrate and fat, synthesizes substances involved in the clotting of the blood, synthesizes vitamin A, detoxifies poisonous substances, stores glycogen, and breaks down worn-out erythrocytes.
1 Q7SYD5 (/IMP)
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.
1 Q7SYD5 (/IMP)
Response to calcium ion GO:0051592
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 calcium ion stimulus.
1 Q3UPL0 (/ISO)
Digestive system development GO:0055123
The process whose specific outcome is the progression of the digestive system over time, from its formation to the mature structure. The digestive system is the entire structure in which digestion takes place. Digestion is all of the physical, chemical, and biochemical processes carried out by multicellular organisms to break down ingested nutrients into components that may be easily absorbed and directed into metabolism.
1 Q7SYD5 (/IMP)
COPII-coated vesicle cargo loading GO:0090110
The formation of a macromolecular complex between the COPII coat proteins and proteins and/or lipoproteins that are going to be transported by the COPII vesicle to the Golgi.
1 Q3UPL0 (/ISO)

There are 30 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
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.
10 A0A0B4LEY1 (/ISS) A0A0B4LEZ1 (/ISS) A1Z7J6 (/ISS) A1Z7J7 (/ISS) Q3UPL0 (/ISS) Q5F3X8 (/ISS) Q5R4F4 (/ISS) Q5U0U9 (/ISS) Q7SYD5 (/ISS) Q9Z2Q1 (/ISS)
Endoplasmic reticulum exit site GO:0070971
An endoplasmic reticulum part at which COPII-coated vesicles are produced.
8 A0A0B4LEY1 (/IDA) A0A0B4LEZ1 (/IDA) A1Z7J6 (/IDA) A1Z7J7 (/IDA) O94979 (/IDA) O94979 (/IDA) Q3UPL0 (/IDA) Q5U0U9 (/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).
7 A0A0B4LEY1 (/IDA) A0A0B4LEZ1 (/IDA) A1Z7J6 (/IDA) A1Z7J7 (/IDA) O94979 (/IDA) O94979 (/IDA) Q5U0U9 (/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.
7 A0A024RDD3 (/IDA) A0A024RDD3 (/IDA) A0A024RDH6 (/IDA) D6REX3 (/IDA) H7BXG7 (/IDA) O94979 (/IDA) O94979 (/IDA)
Intracellular membrane-bounded organelle GO:0043231
Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
7 A0A024RDD3 (/IDA) A0A024RDD3 (/IDA) A0A024RDH6 (/IDA) D6REX3 (/IDA) H7BXG7 (/IDA) O94979 (/IDA) O94979 (/IDA)
Golgi stack GO:0005795
The set of thin, flattened membrane-bounded compartments, called cisternae, that form the central portion of the Golgi complex. The stack usually comprises cis, medial, and trans cisternae; the cis- and trans-Golgi networks are not considered part of the stack.
5 A0A0B4LEY1 (/IDA) A0A0B4LEZ1 (/IDA) A1Z7J6 (/IDA) A1Z7J7 (/IDA) Q5U0U9 (/IDA)
COPII-coated ER to Golgi transport vesicle GO:0030134
A vesicle with a coat formed of the COPII coat complex proteins. The COPII coat complex is formed by the Sec23p/Sec24p and the Sec13p/Sec31p heterodimers. COPII-associated vesicles transport proteins from the rough endoplasmic reticulum to the Golgi apparatus (anterograde transport).
5 Q3UPL0 (/ISS) Q5F3X8 (/ISS) Q5R4F4 (/ISS) Q7SYD5 (/ISS) Q9Z2Q1 (/ISS)
COPII-coated ER to Golgi transport vesicle GO:0030134
A vesicle with a coat formed of the COPII coat complex proteins. The COPII coat complex is formed by the Sec23p/Sec24p and the Sec13p/Sec31p heterodimers. COPII-associated vesicles transport proteins from the rough endoplasmic reticulum to the Golgi apparatus (anterograde transport).
5 A0A0B4LEY1 (/TAS) A0A0B4LEZ1 (/TAS) A1Z7J6 (/TAS) A1Z7J7 (/TAS) Q5U0U9 (/TAS)
Endoplasmic reticulum exit site GO:0070971
An endoplasmic reticulum part at which COPII-coated vesicles are produced.
4 Q5F3X8 (/ISS) Q5R4F4 (/ISS) Q7SYD5 (/ISS) Q9Z2Q1 (/ISS)
COPII-coated ER to Golgi transport vesicle GO:0030134
A vesicle with a coat formed of the COPII coat complex proteins. The COPII coat complex is formed by the Sec23p/Sec24p and the Sec13p/Sec31p heterodimers. COPII-associated vesicles transport proteins from the rough endoplasmic reticulum to the Golgi apparatus (anterograde transport).
3 O94979 (/IDA) O94979 (/IDA) Q3UPL0 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 O94979 (/IDA) O94979 (/IDA)
Endoplasmic reticulum membrane GO:0005789
The lipid bilayer surrounding the endoplasmic reticulum.
2 O94979 (/TAS) O94979 (/TAS)
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 O94979 (/TAS) O94979 (/TAS)
ER to Golgi transport vesicle membrane GO:0012507
The lipid bilayer surrounding a vesicle transporting substances from the endoplasmic reticulum to the Golgi.
2 O94979 (/TAS) O94979 (/TAS)
Vesicle coat GO:0030120
A membrane coat found on a coated vesicle.
2 O94979 (/IDA) O94979 (/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.
2 O94979 (/IDA) O94979 (/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.
2 O94979 (/NAS) O94979 (/NAS)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
2 O94979 (/IDA) O94979 (/IDA)
Endoplasmic reticulum exit site GO:0070971
An endoplasmic reticulum part at which COPII-coated vesicles are produced.
2 O94979 (/IMP) O94979 (/IMP)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q3UPL0 (/ISO)
Endosome GO:0005768
A vacuole to which materials ingested by endocytosis are delivered.
1 Q9Z2Q1 (/IDA)
Endosome GO:0005768
A vacuole to which materials ingested by endocytosis are delivered.
1 Q3UPL0 (/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 Q3UPL0 (/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.
1 Q3UPL0 (/ISO)
Vesicle coat GO:0030120
A membrane coat found on a coated vesicle.
1 Q3UPL0 (/ISO)
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 Q3UPL0 (/ISO)
COPII-coated ER to Golgi transport vesicle GO:0030134
A vesicle with a coat formed of the COPII coat complex proteins. The COPII coat complex is formed by the Sec23p/Sec24p and the Sec13p/Sec31p heterodimers. COPII-associated vesicles transport proteins from the rough endoplasmic reticulum to the Golgi apparatus (anterograde transport).
1 Q3UPL0 (/ISO)
Intracellular membrane-bounded organelle GO:0043231
Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
1 Q3UPL0 (/ISO)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
1 Q3UPL0 (/ISO)
Endoplasmic reticulum exit site GO:0070971
An endoplasmic reticulum part at which COPII-coated vesicles are produced.
1 Q3UPL0 (/ISO)