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:

"
Ubiquitin Conjugating Enzyme
".

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 39: Ubiquitin-conjugating enzyme E2 C

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 8 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).
12 O00762 (/IPI) O00762 (/IPI) O00762 (/IPI) O00762 (/IPI) O00762 (/IPI) O00762 (/IPI) Q5TZN3 (/IPI) Q5TZN3 (/IPI) Q5TZN3 (/IPI) Q5TZN3 (/IPI)
(2 more)
Ubiquitin-protein transferase activity GO:0004842
Catalysis of the transfer of ubiquitin from one protein to another via the reaction X-Ub + Y --> Y-Ub + X, where both X-Ub and Y-Ub are covalent linkages.
10 Q32PA5 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q9D1C1 (/ISS) Q9D1C1 (/ISS)
Ubiquitin-protein transferase activity GO:0004842
Catalysis of the transfer of ubiquitin from one protein to another via the reaction X-Ub + Y --> Y-Ub + X, where both X-Ub and Y-Ub are covalent linkages.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Ubiquitin-like protein ligase binding GO:0044389
Interacting selectively and non-covalently with a ubiquitin-like protein ligase, such as ubiquitin-ligase.
6 O00762 (/IPI) O00762 (/IPI) O00762 (/IPI) O00762 (/IPI) O00762 (/IPI) O00762 (/IPI)
Ubiquitin conjugating enzyme activity GO:0061631
Isoenergetic transfer of ubiquitin from one protein to another via the reaction X-ubiquitin + Y -> Y-ubiquitin + X, where both the X-ubiquitin and Y-ubiquitin linkages are thioester bonds between the C-terminal glycine of ubiquitin and a sulfhydryl side group of a cysteine residue.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Ubiquitin-protein transferase activity GO:0004842
Catalysis of the transfer of ubiquitin from one protein to another via the reaction X-Ub + Y --> Y-Ub + X, where both X-Ub and Y-Ub are covalent linkages.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Ubiquitin-like protein ligase binding GO:0044389
Interacting selectively and non-covalently with a ubiquitin-like protein ligase, such as ubiquitin-ligase.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Ubiquitin conjugating enzyme activity GO:0061631
Isoenergetic transfer of ubiquitin from one protein to another via the reaction X-ubiquitin + Y -> Y-ubiquitin + X, where both the X-ubiquitin and Y-ubiquitin linkages are thioester bonds between the C-terminal glycine of ubiquitin and a sulfhydryl side group of a cysteine residue.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)

There are 27 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 protein catabolic process GO:0006511
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of a ubiquitin group, or multiple ubiquitin groups, to the protein.
12 P56616 (/ISS) P56616 (/ISS) Q32PA5 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS)
(2 more)
Exit from mitosis GO:0010458
The cell cycle transition where a cell leaves M phase and enters a new G1 phase. M phase is the part of the mitotic cell cycle during which mitosis and cytokinesis take place.
12 P56616 (/ISS) P56616 (/ISS) Q32PA5 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS)
(2 more)
Free ubiquitin chain polymerization GO:0010994
The process of creating free ubiquitin chains, compounds composed of a large number of ubiquitin monomers. These chains are not conjugated to a protein.
12 P56616 (/ISS) P56616 (/ISS) Q32PA5 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS)
(2 more)
Anaphase-promoting complex-dependent catabolic process GO:0031145
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, with ubiquitin-protein ligation catalyzed by the anaphase-promoting complex, and mediated by the proteasome.
12 P56616 (/ISS) P56616 (/ISS) Q32PA5 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS)
(2 more)
Protein K11-linked ubiquitination GO:0070979
A protein ubiquitination process in which ubiquitin monomers are attached to a protein, and then ubiquitin polymers are formed by linkages between lysine residues at position 11 of the ubiquitin monomers. K11-linked polyubiquitination targets the substrate protein for degradation. The anaphase-promoting complex promotes the degradation of mitotic regulators by assembling K11-linked polyubiquitin chains.
12 P56616 (/ISS) P56616 (/ISS) Q32PA5 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS)
(2 more)
Protein K48-linked ubiquitination GO:0070936
A protein ubiquitination process in which a polymer of ubiquitin, formed by linkages between lysine residues at position 48 of the ubiquitin monomers, is added to a protein. K48-linked ubiquitination targets the substrate protein for degradation.
10 Q32PA5 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q9D1C1 (/ISS) Q9D1C1 (/ISS)
Ubiquitin-dependent protein catabolic process GO:0006511
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of a ubiquitin group, or multiple ubiquitin groups, to the protein.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Ubiquitin-dependent protein catabolic process GO:0006511
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of a ubiquitin group, or multiple ubiquitin groups, to the protein.
6 O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS)
Exit from mitosis GO:0010458
The cell cycle transition where a cell leaves M phase and enters a new G1 phase. M phase is the part of the mitotic cell cycle during which mitosis and cytokinesis take place.
6 O00762 (/IMP) O00762 (/IMP) O00762 (/IMP) O00762 (/IMP) O00762 (/IMP) O00762 (/IMP)
Free ubiquitin chain polymerization GO:0010994
The process of creating free ubiquitin chains, compounds composed of a large number of ubiquitin monomers. These chains are not conjugated to a protein.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Protein ubiquitination GO:0016567
The process in which one or more ubiquitin groups are added to a protein.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Protein ubiquitination GO:0016567
The process in which one or more ubiquitin groups are added to a protein.
6 O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS)
Anaphase-promoting complex-dependent catabolic process GO:0031145
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, with ubiquitin-protein ligation catalyzed by the anaphase-promoting complex, and mediated by the proteasome.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Anaphase-promoting complex-dependent catabolic process GO:0031145
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, with ubiquitin-protein ligation catalyzed by the anaphase-promoting complex, and mediated by the proteasome.
6 O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS)
Positive regulation of exit from mitosis GO:0031536
Any process that activates or increases the rate of progression from anaphase/telophase (high mitotic CDK activity) to G1 (low mitotic CDK activity).
6 O00762 (/IMP) O00762 (/IMP) O00762 (/IMP) O00762 (/IMP) O00762 (/IMP) O00762 (/IMP)
Protein K48-linked ubiquitination GO:0070936
A protein ubiquitination process in which a polymer of ubiquitin, formed by linkages between lysine residues at position 48 of the ubiquitin monomers, is added to a protein. K48-linked ubiquitination targets the substrate protein for degradation.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Protein K11-linked ubiquitination GO:0070979
A protein ubiquitination process in which ubiquitin monomers are attached to a protein, and then ubiquitin polymers are formed by linkages between lysine residues at position 11 of the ubiquitin monomers. K11-linked polyubiquitination targets the substrate protein for degradation. The anaphase-promoting complex promotes the degradation of mitotic regulators by assembling K11-linked polyubiquitin chains.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Regulation of mitotic cell cycle phase transition GO:1901990
Any process that modulates the frequency, rate or extent of mitotic cell cycle phase transition.
6 O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS)
Positive regulation of ubiquitin protein ligase activity GO:1904668
Any process that activates or increases the frequency, rate or extent of ubiquitin protein ligase activity.
6 O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS)
Ubiquitin-dependent protein catabolic process GO:0006511
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of a ubiquitin group, or multiple ubiquitin groups, to the protein.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Exit from mitosis GO:0010458
The cell cycle transition where a cell leaves M phase and enters a new G1 phase. M phase is the part of the mitotic cell cycle during which mitosis and cytokinesis take place.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Free ubiquitin chain polymerization GO:0010994
The process of creating free ubiquitin chains, compounds composed of a large number of ubiquitin monomers. These chains are not conjugated to a protein.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Protein ubiquitination GO:0016567
The process in which one or more ubiquitin groups are added to a protein.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Anaphase-promoting complex-dependent catabolic process GO:0031145
The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, with ubiquitin-protein ligation catalyzed by the anaphase-promoting complex, and mediated by the proteasome.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Positive regulation of exit from mitosis GO:0031536
Any process that activates or increases the rate of progression from anaphase/telophase (high mitotic CDK activity) to G1 (low mitotic CDK activity).
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Protein K48-linked ubiquitination GO:0070936
A protein ubiquitination process in which a polymer of ubiquitin, formed by linkages between lysine residues at position 48 of the ubiquitin monomers, is added to a protein. K48-linked ubiquitination targets the substrate protein for degradation.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Protein K11-linked ubiquitination GO:0070979
A protein ubiquitination process in which ubiquitin monomers are attached to a protein, and then ubiquitin polymers are formed by linkages between lysine residues at position 11 of the ubiquitin monomers. K11-linked polyubiquitination targets the substrate protein for degradation. The anaphase-promoting complex promotes the degradation of mitotic regulators by assembling K11-linked polyubiquitin chains.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)

There are 11 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
Anaphase-promoting complex GO:0005680
A ubiquitin ligase complex that degrades mitotic cyclins and anaphase inhibitory protein, thereby triggering sister chromatid separation and exit from mitosis. Substrate recognition by APC occurs through degradation signals, the most common of which is termed the Dbox degradation motif, originally discovered in cyclin B.
12 P56616 (/ISS) P56616 (/ISS) Q32PA5 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS) Q4R9D1 (/ISS)
(2 more)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
12 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) Q5TZN3 (/IDA) Q5TZN3 (/IDA) Q5TZN3 (/IDA) Q5TZN3 (/IDA)
(2 more)
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.
12 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) Q5TZN3 (/IDA) Q5TZN3 (/IDA) Q5TZN3 (/IDA) Q5TZN3 (/IDA)
(2 more)
Ubiquitin ligase complex GO:0000151
A protein complex that includes a ubiquitin-protein ligase and enables ubiquitin protein ligase activity. The complex also contains other proteins that may confer substrate specificity on the complex.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
6 O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS)
Anaphase-promoting complex GO:0005680
A ubiquitin ligase complex that degrades mitotic cyclins and anaphase inhibitory protein, thereby triggering sister chromatid separation and exit from mitosis. Substrate recognition by APC occurs through degradation signals, the most common of which is termed the Dbox degradation motif, originally discovered in cyclin B.
6 O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/IDA) O00762 (/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.
6 O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS) O00762 (/TAS)
Ubiquitin ligase complex GO:0000151
A protein complex that includes a ubiquitin-protein ligase and enables ubiquitin protein ligase activity. The complex also contains other proteins that may confer substrate specificity on the complex.
2 Q9D1C1 (/ISO) Q9D1C1 (/ISO)
Anaphase-promoting complex GO:0005680
A ubiquitin ligase complex that degrades mitotic cyclins and anaphase inhibitory protein, thereby triggering sister chromatid separation and exit from mitosis. Substrate recognition by APC occurs through degradation signals, the most common of which is termed the Dbox degradation motif, originally discovered in cyclin B.
2 Q9D1C1 (/ISO) Q9D1C1 (/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.
2 Q9D1C1 (/ISO) Q9D1C1 (/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 Q9D1C1 (/ISO) Q9D1C1 (/ISO)