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:

"
C2 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 79: copine-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 14 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).
2 Q8C166 (/IPI) Q99829 (/IPI)
Phosphatidylserine binding GO:0001786
Interacting selectively and non-covalently with phosphatidylserine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of L-serine.
1 Q99829 (/IDA)
Phosphatidylserine binding GO:0001786
Interacting selectively and non-covalently with phosphatidylserine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of L-serine.
1 Q8C166 (/ISO)
Endopeptidase activity GO:0004175
Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain.
1 Q99829 (/IDA)
Endopeptidase activity GO:0004175
Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain.
1 Q8C166 (/ISO)
Transporter activity GO:0005215
Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells.
1 Q99829 (/TAS)
Calcium ion binding GO:0005509
Interacting selectively and non-covalently with calcium ions (Ca2+).
1 Q99829 (/IMP)
Calcium ion binding GO:0005509
Interacting selectively and non-covalently with calcium ions (Ca2+).
1 Q8C166 (/ISO)
Calcium ion binding GO:0005509
Interacting selectively and non-covalently with calcium ions (Ca2+).
1 Q8C166 (/ISS)
Calcium-dependent phospholipid binding GO:0005544
Interacting selectively and non-covalently with phospholipids, a class of lipids containing phosphoric acid as a mono- or diester, in the presence of calcium.
1 Q99829 (/TAS)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
1 Q99829 (/IMP)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
1 Q8C166 (/ISO)
NF-kappaB binding GO:0051059
Interacting selectively and non-covalently with NF-kappaB, a transcription factor for eukaryotic RNA polymerase II promoters.
1 Q99829 (/IPI)
NF-kappaB binding GO:0051059
Interacting selectively and non-covalently with NF-kappaB, a transcription factor for eukaryotic RNA polymerase II promoters.
1 Q8C166 (/ISO)

There are 30 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
Proteolysis GO:0006508
The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
1 Q99829 (/IMP)
Proteolysis GO:0006508
The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
1 Q8C166 (/ISO)
Lipid metabolic process GO:0006629
The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
1 Q99829 (/TAS)
Negative regulation of gene expression GO:0010629
Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
1 Q99829 (/IMP)
Negative regulation of gene expression GO:0010629
Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
1 Q8C166 (/ISO)
Vesicle-mediated transport GO:0016192
A cellular transport process in which transported substances are moved in membrane-bounded vesicles; transported substances are enclosed in the vesicle lumen or located in the vesicle membrane. The process begins with a step that directs a substance to the forming vesicle, and includes vesicle budding and coating. Vesicles are then targeted to, and fuse with, an acceptor membrane.
1 Q99829 (/TAS)
Regulation of I-kappaB kinase/NF-kappaB signaling GO:0043122
Any process that modulates I-kappaB kinase/NF-kappaB signaling.
1 Q99829 (/IMP)
Regulation of I-kappaB kinase/NF-kappaB signaling GO:0043122
Any process that modulates I-kappaB kinase/NF-kappaB signaling.
1 Q8C166 (/ISO)
Neutrophil degranulation GO:0043312
The regulated exocytosis of secretory granules containing preformed mediators such as proteases, lipases, and inflammatory mediators by a neutrophil.
1 Q99829 (/TAS)
Negative regulation of DNA binding GO:0043392
Any process that stops or reduces the frequency, rate or extent of DNA binding. DNA binding is any process in which a gene product interacts selectively with DNA (deoxyribonucleic acid).
1 Q99829 (/IDA)
Negative regulation of DNA binding GO:0043392
Any process that stops or reduces the frequency, rate or extent of DNA binding. DNA binding is any process in which a gene product interacts selectively with DNA (deoxyribonucleic acid).
1 Q8C166 (/ISO)
Positive regulation of neuron differentiation GO:0045666
Any process that activates or increases the frequency, rate or extent of neuron differentiation.
1 Q99829 (/IDA)
Positive regulation of neuron differentiation GO:0045666
Any process that activates or increases the frequency, rate or extent of neuron differentiation.
1 Q99829 (/IMP)
Positive regulation of neuron differentiation GO:0045666
Any process that activates or increases the frequency, rate or extent of neuron differentiation.
1 Q8C166 (/ISO)
Positive regulation of neuron differentiation GO:0045666
Any process that activates or increases the frequency, rate or extent of neuron differentiation.
1 Q8C166 (/ISS)
Glycerophospholipid biosynthetic process GO:0046474
The chemical reactions and pathways resulting in the formation of glycerophospholipids, any derivative of glycerophosphate that contains at least one O-acyl, O-alkyl, or O-alkenyl group attached to the glycerol residue.
1 Q99829 (/TAS)
Positive regulation of protein kinase B signaling GO:0051897
Any process that activates or increases the frequency, rate or extent of protein kinase B signaling, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B.
1 Q99829 (/IDA)
Positive regulation of protein kinase B signaling GO:0051897
Any process that activates or increases the frequency, rate or extent of protein kinase B signaling, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B.
1 Q99829 (/IMP)
Positive regulation of protein kinase B signaling GO:0051897
Any process that activates or increases the frequency, rate or extent of protein kinase B signaling, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B.
1 Q8C166 (/ISO)
Positive regulation of protein kinase B signaling GO:0051897
Any process that activates or increases the frequency, rate or extent of protein kinase B signaling, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B.
1 Q8C166 (/ISS)
Cellular response to calcium ion GO:0071277
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 calcium ion stimulus.
1 Q99829 (/IMP)
Cellular response to calcium ion GO:0071277
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 calcium ion stimulus.
1 Q8C166 (/ISO)
Negative regulation of NIK/NF-kappaB signaling GO:1901223
Any process that stops, prevents or reduces the frequency, rate or extent of NIK/NF-kappaB signaling.
1 Q99829 (/IMP)
Negative regulation of NIK/NF-kappaB signaling GO:1901223
Any process that stops, prevents or reduces the frequency, rate or extent of NIK/NF-kappaB signaling.
1 Q8C166 (/ISO)
Positive regulation of tumor necrosis factor-mediated signaling pathway GO:1903265
Any process that activates or increases the frequency, rate or extent of tumor necrosis factor-mediated signaling pathway.
1 Q99829 (/IMP)
Positive regulation of tumor necrosis factor-mediated signaling pathway GO:1903265
Any process that activates or increases the frequency, rate or extent of tumor necrosis factor-mediated signaling pathway.
1 Q8C166 (/ISO)
Neuron projection extension GO:1990138
Long distance growth of a single neuron projection involved in cellular development. A neuron projection is a prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 Q99829 (/IDA)
Neuron projection extension GO:1990138
Long distance growth of a single neuron projection involved in cellular development. A neuron projection is a prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 Q99829 (/IMP)
Neuron projection extension GO:1990138
Long distance growth of a single neuron projection involved in cellular development. A neuron projection is a prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 Q8C166 (/ISO)
Neuron projection extension GO:1990138
Long distance growth of a single neuron projection involved in cellular development. A neuron projection is a prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 Q8C166 (/ISS)

There are 17 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
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
9 A6PVH9 (/IDA) B0QZ18 (/IDA) F2Z2V0 (/IDA) Q5JX44 (/IDA) Q5JX45 (/IDA) Q5JX52 (/IDA) Q5JX60 (/IDA) Q5JX61 (/IDA) Q99829 (/IDA)
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
9 A6PVH9 (/IDA) B0QZ18 (/IDA) F2Z2V0 (/IDA) Q5JX44 (/IDA) Q5JX45 (/IDA) Q5JX52 (/IDA) Q5JX60 (/IDA) Q5JX61 (/IDA) Q99829 (/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 Q99829 (/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 Q8C166 (/ISO)
Nucleoplasm GO:0005654
That part of the nuclear content other than the chromosomes or the nucleolus.
1 Q8C166 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q99829 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q8C166 (/ISO)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
1 Q8C166 (/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.
1 Q99829 (/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.
1 Q8C166 (/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.
1 Q99829 (/TAS)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q99829 (/IDA)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q8C166 (/ISO)
Membrane GO:0016020
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
1 Q8C166 (/ISS)
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
1 Q8C166 (/ISO)
Azurophil granule membrane GO:0035577
The lipid bilayer surrounding an azurophil granule, a primary lysosomal granule found in neutrophil granulocytes that contains a wide range of hydrolytic enzymes and is released into the extracellular fluid.
1 Q99829 (/TAS)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
1 Q99829 (/HDA)