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:

"
Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
".

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 81: ubiquilin-1 isoform X2

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 13 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
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).
6 D4AA63 (/IPI) I3LSM3 (/IPI) Q9JJP9 (/IPI) Q9QZM0 (/IPI) Q9UHD9 (/IPI) Q9UMX0 (/IPI)
Polyubiquitin modification-dependent protein binding GO:0031593
Interacting selectively and non-covalently with a protein upon poly-ubiquitination of the target protein.
3 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS)
Signaling receptor binding GO:0005102
Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
1 Q8R317 (/NAS)
Intermediate filament binding GO:0019215
Interacting selectively and non-covalently with an intermediate filament, a distinct elongated structure, characteristically 10 nm in diameter, that occurs in the cytoplasm of higher eukaryotic cells. Intermediate filaments form a fibrous system, composed of chemically heterogeneous subunits and involved in mechanically integrating the various components of the cytoplasmic space.
1 Q8R317 (/NAS)
Kinase binding GO:0019900
Interacting selectively and non-covalently with a kinase, any enzyme that catalyzes the transfer of a phosphate group.
1 Q9UMX0 (/IPI)
Kinase binding GO:0019900
Interacting selectively and non-covalently with a kinase, any enzyme that catalyzes the transfer of a phosphate group.
1 Q8R317 (/ISO)
Kinase binding GO:0019900
Interacting selectively and non-covalently with a kinase, any enzyme that catalyzes the transfer of a phosphate group.
1 Q8R317 (/ISS)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
1 Q9JJP9 (/IPI)
Protein domain specific binding GO:0019904
Interacting selectively and non-covalently with a specific domain of a protein.
1 Q8R317 (/ISO)
Polyubiquitin modification-dependent protein binding GO:0031593
Interacting selectively and non-covalently with a protein upon poly-ubiquitination of the target protein.
1 Q9UMX0 (/IDA)
Polyubiquitin modification-dependent protein binding GO:0031593
Interacting selectively and non-covalently with a protein upon poly-ubiquitination of the target protein.
1 Q8R317 (/ISO)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
1 Q9UMX0 (/IPI)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
1 Q8R317 (/ISO)

There are 45 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
Ubiquitin-dependent ERAD pathway GO:0030433
The series of steps necessary to target endoplasmic reticulum (ER)-resident proteins for degradation by the cytoplasmic proteasome. Begins with recognition of the ER-resident protein, includes retrotranslocation (dislocation) of the protein from the ER to the cytosol, protein ubiquitination necessary for correct substrate transfer, transport of the protein to the proteasome, and ends with degradation of the protein by the cytoplasmic proteasome.
4 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS) Q9QZM0 (/ISS)
Positive regulation of ER-associated ubiquitin-dependent protein catabolic process GO:1903071
Any process that activates or increases the frequency, rate or extent of ER-associated ubiquitin-dependent protein catabolic process.
4 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS) Q9QZM0 (/ISS)
Positive regulation of protein ubiquitination GO:0031398
Any process that activates or increases the frequency, rate or extent of the addition of ubiquitin groups to a protein.
3 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS)
Aggrephagy GO:0035973
Selective degradation of protein aggregates by macroautophagy.
3 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS)
Negative regulation of store-operated calcium channel activity GO:1901340
Any process that stops, prevents or reduces the frequency, rate or extent of store-operated calcium channel activity.
3 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS)
Ubiquitin-dependent ERAD pathway GO:0030433
The series of steps necessary to target endoplasmic reticulum (ER)-resident proteins for degradation by the cytoplasmic proteasome. Begins with recognition of the ER-resident protein, includes retrotranslocation (dislocation) of the protein from the ER to the cytosol, protein ubiquitination necessary for correct substrate transfer, transport of the protein to the proteasome, and ends with degradation of the protein by the cytoplasmic proteasome.
2 Q9UHD9 (/IMP) Q9UMX0 (/IMP)
Ubiquitin-dependent ERAD pathway GO:0030433
The series of steps necessary to target endoplasmic reticulum (ER)-resident proteins for degradation by the cytoplasmic proteasome. Begins with recognition of the ER-resident protein, includes retrotranslocation (dislocation) of the protein from the ER to the cytosol, protein ubiquitination necessary for correct substrate transfer, transport of the protein to the proteasome, and ends with degradation of the protein by the cytoplasmic proteasome.
2 Q8R317 (/ISO) Q9QZM0 (/ISO)
Regulation of protein ubiquitination GO:0031396
Any process that modulates the frequency, rate or extent of the addition of ubiquitin groups to a protein.
2 Q8R317 (/ISS) Q9JJP9 (/ISS)
Cellular response to hypoxia GO:0071456
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 stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
2 Q8R317 (/ISS) Q9JJP9 (/ISS)
Regulation of oxidative stress-induced intrinsic apoptotic signaling pathway GO:1902175
Any process that modulates the frequency, rate or extent of an oxidative stress-induced intrinsic apoptotic signaling pathway.
2 Q8R317 (/ISS) Q9JJP9 (/ISS)
Positive regulation of ER-associated ubiquitin-dependent protein catabolic process GO:1903071
Any process that activates or increases the frequency, rate or extent of ER-associated ubiquitin-dependent protein catabolic process.
2 Q9UHD9 (/IMP) Q9UMX0 (/IMP)
Positive regulation of ER-associated ubiquitin-dependent protein catabolic process GO:1903071
Any process that activates or increases the frequency, rate or extent of ER-associated ubiquitin-dependent protein catabolic process.
2 Q8R317 (/ISO) Q9QZM0 (/ISO)
Autophagosome assembly GO:0000045
The formation of a double membrane-bounded structure, the autophagosome, that occurs when a specialized membrane sac, called the isolation membrane, starts to enclose a portion of the cytoplasm.
1 Q9UMX0 (/IMP)
Autophagosome assembly GO:0000045
The formation of a double membrane-bounded structure, the autophagosome, that occurs when a specialized membrane sac, called the isolation membrane, starts to enclose a portion of the cytoplasm.
1 Q8R317 (/ISO)
Macroautophagy GO:0016236
The major inducible pathway for the general turnover of cytoplasmic constituents in eukaryotic cells, it is also responsible for the degradation of active cytoplasmic enzymes and organelles during nutrient starvation. Macroautophagy involves the formation of double-membrane-bounded autophagosomes which enclose the cytoplasmic constituent targeted for degradation in a membrane-bounded structure. Autophagosomes then fuse with a lysosome (or vacuole) releasing single-membrane-bounded autophagic bodies that are then degraded within the lysosome (or vacuole). Some types of macroautophagy, e.g. pexophagy, mitophagy, involve selective targeting of the targets to be degraded.
1 Q9UMX0 (/IMP)
Macroautophagy GO:0016236
The major inducible pathway for the general turnover of cytoplasmic constituents in eukaryotic cells, it is also responsible for the degradation of active cytoplasmic enzymes and organelles during nutrient starvation. Macroautophagy involves the formation of double-membrane-bounded autophagosomes which enclose the cytoplasmic constituent targeted for degradation in a membrane-bounded structure. Autophagosomes then fuse with a lysosome (or vacuole) releasing single-membrane-bounded autophagic bodies that are then degraded within the lysosome (or vacuole). Some types of macroautophagy, e.g. pexophagy, mitophagy, involve selective targeting of the targets to be degraded.
1 Q8R317 (/ISO)
Regulation of macroautophagy GO:0016241
Any process that modulates the frequency, rate or extent of macroautophagy.
1 Q9UHD9 (/IMP)
Regulation of macroautophagy GO:0016241
Any process that modulates the frequency, rate or extent of macroautophagy.
1 Q9QZM0 (/ISO)
Regulation of macroautophagy GO:0016241
Any process that modulates the frequency, rate or extent of macroautophagy.
1 Q9QZM0 (/ISS)
Regulation of protein ubiquitination GO:0031396
Any process that modulates the frequency, rate or extent of the addition of ubiquitin groups to a protein.
1 Q9UMX0 (/IDA)
Regulation of protein ubiquitination GO:0031396
Any process that modulates the frequency, rate or extent of the addition of ubiquitin groups to a protein.
1 Q8R317 (/ISO)
Positive regulation of protein ubiquitination GO:0031398
Any process that activates or increases the frequency, rate or extent of the addition of ubiquitin groups to a protein.
1 Q9UMX0 (/IDA)
Positive regulation of protein ubiquitination GO:0031398
Any process that activates or increases the frequency, rate or extent of the addition of ubiquitin groups to a protein.
1 Q8R317 (/ISO)
Negative regulation of toll-like receptor 3 signaling pathway GO:0034140
Any process that stops, prevents, or reduces the frequency, rate, or extent of toll-like receptor 3 signaling pathway.
1 Q8R317 (/IMP)
Response to endoplasmic reticulum stress GO:0034976
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 stress acting at the endoplasmic reticulum. ER stress usually results from the accumulation of unfolded or misfolded proteins in the ER lumen.
1 Q9UMX0 (/IMP)
Response to endoplasmic reticulum stress GO:0034976
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 stress acting at the endoplasmic reticulum. ER stress usually results from the accumulation of unfolded or misfolded proteins in the ER lumen.
1 Q8R317 (/ISO)
Aggrephagy GO:0035973
Selective degradation of protein aggregates by macroautophagy.
1 Q9UMX0 (/IDA)
Aggrephagy GO:0035973
Selective degradation of protein aggregates by macroautophagy.
1 Q8R317 (/ISO)
Cellular response to hypoxia GO:0071456
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 stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
1 Q9UMX0 (/IMP)
Cellular response to hypoxia GO:0071456
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 stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
1 Q8R317 (/ISO)
Autophagosome maturation GO:0097352
Removal of PI3P and Atg8/LC3 after the closure of the phagophore and before the fusion with the endosome/lysosome (e.g. mammals and insects) or vacuole (yeast), and that very likely destabilizes other Atg proteins and thus enables their efficient dissociation and recycling.
1 Q9UMX0 (/IMP)
Autophagosome maturation GO:0097352
Removal of PI3P and Atg8/LC3 after the closure of the phagophore and before the fusion with the endosome/lysosome (e.g. mammals and insects) or vacuole (yeast), and that very likely destabilizes other Atg proteins and thus enables their efficient dissociation and recycling.
1 Q8R317 (/ISO)
Negative regulation of clathrin-dependent endocytosis GO:1900186
Any process that stops, prevents or reduces the frequency, rate or extent of clathrin-mediated endocytosis.
1 Q9UHD9 (/IMP)
Negative regulation of clathrin-dependent endocytosis GO:1900186
Any process that stops, prevents or reduces the frequency, rate or extent of clathrin-mediated endocytosis.
1 Q9QZM0 (/ISO)
Negative regulation of clathrin-dependent endocytosis GO:1900186
Any process that stops, prevents or reduces the frequency, rate or extent of clathrin-mediated endocytosis.
1 Q9QZM0 (/ISS)
Negative regulation of store-operated calcium channel activity GO:1901340
Any process that stops, prevents or reduces the frequency, rate or extent of store-operated calcium channel activity.
1 Q9UMX0 (/IMP)
Negative regulation of store-operated calcium channel activity GO:1901340
Any process that stops, prevents or reduces the frequency, rate or extent of store-operated calcium channel activity.
1 Q8R317 (/ISO)
Regulation of oxidative stress-induced intrinsic apoptotic signaling pathway GO:1902175
Any process that modulates the frequency, rate or extent of an oxidative stress-induced intrinsic apoptotic signaling pathway.
1 Q9UMX0 (/IMP)
Regulation of oxidative stress-induced intrinsic apoptotic signaling pathway GO:1902175
Any process that modulates the frequency, rate or extent of an oxidative stress-induced intrinsic apoptotic signaling pathway.
1 Q8R317 (/ISO)
Negative regulation of G protein-coupled receptor internalization GO:1904021
Any process that stops, prevents or reduces the frequency, rate or extent of G protein-coupled receptor internalization.
1 Q9UHD9 (/IMP)
Negative regulation of G protein-coupled receptor internalization GO:1904021
Any process that stops, prevents or reduces the frequency, rate or extent of G protein-coupled receptor internalization.
1 Q9QZM0 (/ISO)
Negative regulation of G protein-coupled receptor internalization GO:1904021
Any process that stops, prevents or reduces the frequency, rate or extent of G protein-coupled receptor internalization.
1 Q9QZM0 (/ISS)
Regulation of autophagosome assembly GO:2000785
Any process that modulates the frequency, rate or extent of autophagosome assembly.
1 Q9UHD9 (/IMP)
Regulation of autophagosome assembly GO:2000785
Any process that modulates the frequency, rate or extent of autophagosome assembly.
1 Q9QZM0 (/ISO)
Regulation of autophagosome assembly GO:2000785
Any process that modulates the frequency, rate or extent of autophagosome assembly.
1 Q9QZM0 (/ISS)

There are 27 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
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
3 Q9JJP9 (/IDA) Q9UHD9 (/IDA) Q9UMX0 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
3 Q8R317 (/ISS) Q9JJP9 (/ISS) Q9QZM0 (/ISS)
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 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
3 A0A024R258 (/IDA) Q9UHD9 (/IDA) Q9UMX0 (/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.
3 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS)
Aggresome GO:0016235
An inclusion body formed by dynein-dependent retrograde transport of an aggregated protein on microtubules.
3 Q5R684 (/ISS) Q8R317 (/ISS) Q9JJP9 (/ISS)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
2 A0A024R258 (/IDA) Q9UMX0 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 Q8R317 (/ISO) Q9QZM0 (/ISO)
Autophagosome GO:0005776
A double-membrane-bounded compartment that engulfs endogenous cellular material as well as invading microorganisms to target them to the lytic vacuole/lysosome for degradation as part of macroautophagy.
2 Q8R317 (/IDA) Q9UMX0 (/IDA)
Autophagosome GO:0005776
A double-membrane-bounded compartment that engulfs endogenous cellular material as well as invading microorganisms to target them to the lytic vacuole/lysosome for degradation as part of macroautophagy.
2 Q5R684 (/ISS) Q9JJP9 (/ISS)
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 Q8R317 (/ISO) Q9QZM0 (/ISO)
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 Q9UHD9 (/IDA) Q9UMX0 (/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 Q8R317 (/ISO) Q9QZM0 (/ISO)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
2 Q8R317 (/ISS) Q9JJP9 (/ISS)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q8R317 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q9UMX0 (/IMP)
Autophagosome GO:0005776
A double-membrane-bounded compartment that engulfs endogenous cellular material as well as invading microorganisms to target them to the lytic vacuole/lysosome for degradation as part of macroautophagy.
1 Q8R317 (/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 Q9UMX0 (/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 Q8R317 (/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 Q9UHD9 (/TAS)
Aggresome GO:0016235
An inclusion body formed by dynein-dependent retrograde transport of an aggregated protein on microtubules.
1 Q9UMX0 (/IDA)
Aggresome GO:0016235
An inclusion body formed by dynein-dependent retrograde transport of an aggregated protein on microtubules.
1 Q8R317 (/ISO)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
1 Q9UMX0 (/IDA)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
1 Q8R317 (/ISO)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
1 Q9UMX0 (/IDA)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
1 Q8R317 (/ISO)
Perinuclear region of cytoplasm GO:0048471
Cytoplasm situated near, or occurring around, the nucleus.
1 Q9UMX0 (/NAS)