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:

"
SAP domain
".

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 9: E3 SUMO-protein ligase PIAS4

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 16 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).
3 Q8N2W9 (/IPI) Q9JM05 (/IPI) Q9JM05 (/IPI)
Zinc ion binding GO:0008270
Interacting selectively and non-covalently with zinc (Zn) ions.
3 Q8N2W9 (/NAS) Q9JM05 (/NAS) Q9JM05 (/NAS)
SUMO transferase activity GO:0019789
Catalysis of the transfer of SUMO from one protein to another via the reaction X-SUMO + Y --> Y-SUMO + X, where both X-SUMO and Y-SUMO are covalent linkages.
3 Q8N2W9 (/EXP) Q9JM05 (/EXP) Q9JM05 (/EXP)
Ubiquitin protein ligase binding GO:0031625
Interacting selectively and non-covalently with a ubiquitin protein ligase enzyme, any of the E3 proteins.
3 Q8N2W9 (/IPI) Q9JM05 (/IPI) Q9JM05 (/IPI)
SUMO ligase activity GO:0061665
Catalysis of the transfer of SUMO to a substrate protein via the reaction X-SUMO + S --> X + S-SUMO, where X is either an E2 or E3 enzyme, the X-SUMO linkage is a thioester bond, and the S-SUMO linkage is an isopeptide bond between the C-terminal amino acid of SUMO and the epsilon-amino group of lysine residues in the substrate.
3 Q8N2W9 (/IDA) Q9JM05 (/IDA) Q9JM05 (/IDA)
DNA binding GO:0003677
Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Transcription corepressor activity GO:0003714
A protein or a member of a complex that interacts specifically and non-covalently with a DNA-bound DNA-binding transcription factor to repress the transcription of specific genes. Corepressors often act by altering chromatin structure and modifications. For example, one class of transcription coregulators modifies chromatin structure through covalent modification of histones. A second ATP-dependent class modifies the conformation of chromatin. A third class occludes DNA-binding transcription factor protein-protein interaction domains. A fourth class of corepressors prevents interactions of DNA bound DNA-binding transcription factor with coactivators.
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Transcription corepressor activity GO:0003714
A protein or a member of a complex that interacts specifically and non-covalently with a DNA-bound DNA-binding transcription factor to repress the transcription of specific genes. Corepressors often act by altering chromatin structure and modifications. For example, one class of transcription coregulators modifies chromatin structure through covalent modification of histones. A second ATP-dependent class modifies the conformation of chromatin. A third class occludes DNA-binding transcription factor protein-protein interaction domains. A fourth class of corepressors prevents interactions of DNA bound DNA-binding transcription factor with coactivators.
2 Q9JM05 (/ISA) Q9JM05 (/ISA)
Protein C-terminus binding GO:0008022
Interacting selectively and non-covalently with a protein C-terminus, the end of any peptide chain at which the 1-carboxyl function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
SUMO transferase activity GO:0019789
Catalysis of the transfer of SUMO from one protein to another via the reaction X-SUMO + Y --> Y-SUMO + X, where both X-SUMO and Y-SUMO are covalent linkages.
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
SUMO transferase activity GO:0019789
Catalysis of the transfer of SUMO from one protein to another via the reaction X-SUMO + Y --> Y-SUMO + X, where both X-SUMO and Y-SUMO are covalent linkages.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
Ubiquitin protein ligase binding GO:0031625
Interacting selectively and non-covalently with a ubiquitin protein ligase enzyme, any of the E3 proteins.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
SUMO ligase activity GO:0061665
Catalysis of the transfer of SUMO to a substrate protein via the reaction X-SUMO + S --> X + S-SUMO, where X is either an E2 or E3 enzyme, the X-SUMO linkage is a thioester bond, and the S-SUMO linkage is an isopeptide bond between the C-terminal amino acid of SUMO and the epsilon-amino group of lysine residues in the substrate.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
Protein C-terminus binding GO:0008022
Interacting selectively and non-covalently with a protein C-terminus, the end of any peptide chain at which the 1-carboxyl function of a constituent amino acid is not attached in peptide linkage to another amino-acid residue.
1 B5DFF9 (/IPI)
SUMO transferase activity GO:0019789
Catalysis of the transfer of SUMO from one protein to another via the reaction X-SUMO + Y --> Y-SUMO + X, where both X-SUMO and Y-SUMO are covalent linkages.
1 Q8N2W9 (/IMP)
SUMO transferase activity GO:0019789
Catalysis of the transfer of SUMO from one protein to another via the reaction X-SUMO + Y --> Y-SUMO + X, where both X-SUMO and Y-SUMO are covalent linkages.
1 Q8N2W9 (/TAS)

There are 23 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
Protein sumoylation GO:0016925
The process in which a SUMO protein (small ubiquitin-related modifier) is conjugated to a target protein via an isopeptide bond between the carboxy-terminus of SUMO with an epsilon-amino group of a lysine residue of the target protein.
3 Q8N2W9 (/IDA) Q9JM05 (/IDA) Q9JM05 (/IDA)
Negative regulation of transcription by RNA polymerase II GO:0000122
Any process that stops, prevents, or reduces the frequency, rate or extent of transcription mediated by RNA polymerase II.
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Receptor signaling pathway via JAK-STAT GO:0007259
Any process in which STAT proteins (Signal Transducers and Activators of Transcription) and JAK (Janus Activated Kinase) proteins convey a signal to trigger a change in the activity or state of a cell. The receptor signaling pathway via JAK-STAT begins with activation of a receptor and proceeeds through STAT protein activation by members of the JAK family of tyrosine kinases. STAT proteins dimerize and subsequently translocate to the nucleus. The pathway ends with regulation of target gene expression by STAT proteins.
2 Q9JM05 (/ISA) Q9JM05 (/ISA)
Multicellular organism development GO:0007275
The biological process whose specific outcome is the progression of a multicellular organism over time from an initial condition (e.g. a zygote or a young adult) to a later condition (e.g. a multicellular animal or an aged adult).
2 Q9JM05 (/NAS) Q9JM05 (/NAS)
Negative regulation of tumor necrosis factor-mediated signaling pathway GO:0010804
Any process that decreases the rate or extent of the tumor necrosis factor-mediated signaling pathway. The tumor necrosis factor-mediated signaling pathway is the series of molecular signals generated as a consequence of tumor necrosis factor binding to a cell surface receptor.
2 Q9JM05 (/IMP) Q9JM05 (/IMP)
Protein sumoylation GO:0016925
The process in which a SUMO protein (small ubiquitin-related modifier) is conjugated to a target protein via an isopeptide bond between the carboxy-terminus of SUMO with an epsilon-amino group of a lysine residue of the target protein.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
Negative regulation of NF-kappaB transcription factor activity GO:0032088
Any process that stops, prevents, or reduces the frequency, rate or extent of the activity of the transcription factor NF-kappaB.
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Positive regulation of protein sumoylation GO:0033235
Any process that activates or increases the frequency, rate or extent of the addition of SUMO groups to a protein.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
Positive regulation of protein sumoylation GO:0033235
Any process that activates or increases the frequency, rate or extent of the addition of SUMO groups to a protein.
2 Q9JM05 (/ISS) Q9JM05 (/ISS)
Negative regulation of transcription, DNA-templated GO:0045892
Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
Negative regulation of transcription, DNA-templated GO:0045892
Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
2 Q9JM05 (/ISS) Q9JM05 (/ISS)
Positive regulation of keratinocyte apoptotic process GO:1902174
Any process that activates or increases the frequency, rate or extent of keratinocyte apoptotic process.
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage GO:1902231
Any process that activates or increases the frequency, rate or extent of intrinsic apoptotic signaling pathway in response to DNA damage.
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Double-strand break repair via nonhomologous end joining GO:0006303
The repair of a double-strand break in DNA in which the two broken ends are rejoined with little or no sequence complementarity. Information at the DNA ends may be lost due to the modification of broken DNA ends. This term covers instances of separate pathways, called classical (or canonical) and alternative nonhomologous end joining (C-NHEJ and A-NHEJ). These in turn may further branch into sub-pathways, but evidence is still unclear.
1 Q8N2W9 (/TAS)
Protein sumoylation GO:0016925
The process in which a SUMO protein (small ubiquitin-related modifier) is conjugated to a target protein via an isopeptide bond between the carboxy-terminus of SUMO with an epsilon-amino group of a lysine residue of the target protein.
1 Q8N2W9 (/IMP)
Protein sumoylation GO:0016925
The process in which a SUMO protein (small ubiquitin-related modifier) is conjugated to a target protein via an isopeptide bond between the carboxy-terminus of SUMO with an epsilon-amino group of a lysine residue of the target protein.
1 Q8N2W9 (/TAS)
Negative regulation of type I interferon production GO:0032480
Any process that stops, prevents, or reduces the frequency, rate, or extent of type I interferon production. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
1 F1R4C4 (/IMP)
Positive regulation of protein sumoylation GO:0033235
Any process that activates or increases the frequency, rate or extent of the addition of SUMO groups to a protein.
1 Q8N2W9 (/IDA)
Vitamin D metabolic process GO:0042359
The chemical reactions and pathways involving vitamin D, any of a group of related, fat-soluble compounds that are derived from delta-5,7 steroids and play a central role in calcium metabolism. Specific forms of vitamin D include calciferol (ergocalciferol; vitamin D2) and cholecalciferol (calciol; vitamin D3).
1 Q8N2W9 (/TAS)
Negative regulation of transcription, DNA-templated GO:0045892
Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
1 Q8N2W9 (/IDA)
Negative regulation of transcription, DNA-templated GO:0045892
Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
1 Q8N2W9 (/NAS)
Negative regulation of type I interferon-mediated signaling pathway GO:0060339
Any process that decreases the rate, frequency or extent of a type I interferon-mediated signaling pathway. A type I interferon-mediated signaling pathway is the series of molecular events generated as a consequence of a type I interferon binding to a cell surface receptor.
1 F1R4C4 (/IMP)
Positive regulation of keratinocyte apoptotic process GO:1902174
Any process that activates or increases the frequency, rate or extent of keratinocyte apoptotic process.
1 Q8N2W9 (/ISS)

There are 9 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
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
4 F1R4C4 (/IDA) Q8N2W9 (/IDA) Q9JM05 (/IDA) Q9JM05 (/IDA)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
3 Q8N2W9 (/TAS) Q9JM05 (/TAS) Q9JM05 (/TAS)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
2 Q9JM05 (/ISO) Q9JM05 (/ISO)
Nuclear matrix GO:0016363
The dense fibrillar network lying on the inner side of the nuclear membrane.
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Transferase complex GO:1990234
A protein complex capable of catalyzing the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor).
2 Q9JM05 (/IDA) Q9JM05 (/IDA)
Nucleus GO:0005634
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
1 Q8N2W9 (/NAS)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q8N2W9 (/IDA)