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:

"
KEN 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 2: Serine/threonine-protein kinase/endoribonuclease I...

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 10 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
Endoribonuclease activity GO:0004521
Catalysis of the hydrolysis of ester linkages within ribonucleic acid by creating internal breaks.
4 O94537 (/IMP) Q4WKP8 (/IMP) Q9C5S2 (/IMP) Q9C5S2 (/IMP)
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 P32361 (/IPI) Q9C5S2 (/IPI) Q9C5S2 (/IPI)
Endoribonuclease activity GO:0004521
Catalysis of the hydrolysis of ester linkages within ribonucleic acid by creating internal breaks.
2 F4KH40 (/IDA) P32361 (/IDA)
Protein kinase activity GO:0004672
Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction: a protein + ATP = a phosphoprotein + ADP.
1 P32361 (/HDA)
Protein serine/threonine kinase activity GO:0004674
Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate.
1 P32361 (/IDA)
Protein serine/threonine kinase activity GO:0004674
Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate.
1 O94537 (/ISO)
ATP binding GO:0005524
Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
1 O94537 (/ISM)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
1 P32361 (/IPI)
Unfolded protein binding GO:0051082
Interacting selectively and non-covalently with an unfolded protein.
1 P32361 (/IDA)
Unfolded protein binding GO:0051082
Interacting selectively and non-covalently with an unfolded protein.
1 P32361 (/IMP)

There are 24 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
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.
4 P32361 (/IMP) Q6FUI3 (/IMP) Q7XIT1 (/IMP) Q7XIT1 (/IMP)
RNA splicing GO:0008380
The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA.
3 Q93VJ2 (/IMP) Q9C5S2 (/IMP) Q9C5S2 (/IMP)
Response to salicylic acid GO:0009751
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 salicylic acid stimulus.
3 Q93VJ2 (/IMP) Q9C5S2 (/IMP) Q9C5S2 (/IMP)
Defense response to bacterium, incompatible interaction GO:0009816
A response of an organism to a bacterium that prevents the occurrence or spread of disease.
3 Q93VJ2 (/IMP) Q9C5S2 (/IMP) Q9C5S2 (/IMP)
Endoplasmic reticulum unfolded protein response GO:0030968
The series of molecular signals generated as a consequence of the presence of unfolded proteins in the endoplasmic reticulum (ER) or other ER-related stress; results in changes in the regulation of transcription and translation.
3 F4KH40 (/IGI) Q9C5S2 (/IGI) Q9C5S2 (/IGI)
Response to unfolded protein GO:0006986
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 an unfolded protein stimulus.
2 Q7XIT1 (/IMP) Q7XIT1 (/IMP)
Pathogenesis GO:0009405
The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
2 Q4WKP8 (/IMP) Q6FUI3 (/IMP)
Endoplasmic reticulum unfolded protein response GO:0030968
The series of molecular signals generated as a consequence of the presence of unfolded proteins in the endoplasmic reticulum (ER) or other ER-related stress; results in changes in the regulation of transcription and translation.
2 P32361 (/IMP) Q4WKP8 (/IMP)
Fungal-type cell wall organization GO:0031505
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the fungal-type cell wall.
2 P32361 (/IMP) Q4WKP8 (/IMP)
Positive regulation of autophagy in response to ER overload GO:0034263
The process in which the accumulation of misfolded proteins in the endoplasmic reticulum triggers a response that positively regulates autophagy.
2 F4KH40 (/IMP) Q93VJ2 (/IMP)
Protein autophosphorylation GO:0046777
The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).
2 Q9C5S2 (/IMP) Q9C5S2 (/IMP)
RNA splicing, via endonucleolytic cleavage and ligation GO:0000394
Splicing of RNA via recognition of the folded RNA structure that brings the 5' and 3' splice sites into proximity and cleavage of the RNA at both the 3' and 5' splice sites by an endonucleolytic mechanism, followed by ligation of the exons.
1 F4KH40 (/IDA)
Nuclear-transcribed mRNA catabolic process GO:0000956
The chemical reactions and pathways resulting in the breakdown of nuclear-transcribed mRNAs in eukaryotic cells.
1 O94537 (/IMP)
Inositol metabolic process GO:0006020
The chemical reactions and pathways involving inositol, 1,2,3,4,5,6-cyclohexanehexol, a growth factor for animals and microorganisms.
1 P32361 (/IMP)
MRNA catabolic process GO:0006402
The chemical reactions and pathways resulting in the breakdown of mRNA, messenger RNA, which is responsible for carrying the coded genetic 'message', transcribed from DNA, to sites of protein assembly at the ribosomes.
1 Q6FUI3 (/IMP)
Protein phosphorylation GO:0006468
The process of introducing a phosphate group on to a protein.
1 P32361 (/HDA)
Protein phosphorylation GO:0006468
The process of introducing a phosphate group on to a protein.
1 P32361 (/IDA)
Fungal-type cell wall organization GO:0031505
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the fungal-type cell wall.
1 P32361 (/IGI)
Protein localization to Golgi apparatus GO:0034067
A process in which a protein is transported to, or maintained in, a location within the Golgi apparatus.
1 P32361 (/IMP)
Cellular response to drug GO:0035690
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 drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
1 A0A1D8PE76 (/IMP)
Protein trans-autophosphorylation GO:0036290
The phosphorylation by a protein of a residue on an identical protein. For example, phosphorylation by the other kinase within a homodimer.
1 P32361 (/IDA)
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.
1 O94537 (/IC)
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.
1 O94537 (/IMP)
Protein homooligomerization GO:0051260
The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer.
1 P32361 (/IDA)

There are 8 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 Q93VJ2 (/IDA) Q9C5S2 (/IDA) Q9C5S2 (/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).
2 O94537 (/HDA) P32361 (/HDA)
Endoplasmic reticulum membrane GO:0005789
The lipid bilayer surrounding the endoplasmic reticulum.
2 Q7XIT1 (/IDA) Q7XIT1 (/IDA)
Extrinsic component of endoplasmic reticulum membrane GO:0042406
The component of the endoplasmic reticulum membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region.
2 Q9C5S2 (/IDA) Q9C5S2 (/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 P32361 (/IDA)
Endoplasmic reticulum membrane GO:0005789
The lipid bilayer surrounding the endoplasmic reticulum.
1 O94537 (/ISO)
Endoplasmic reticulum membrane GO:0005789
The lipid bilayer surrounding the endoplasmic reticulum.
1 P32361 (/TAS)
Integral component of endoplasmic reticulum membrane GO:0030176
The component of the endoplasmic reticulum membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
1 P32361 (/IDA)