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:

"
EF-hand
".

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 77: Centrin 1

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 P05434 (/IPI) P05434 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI)
(2 more)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
10 P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI) P06704 (/IPI)
Calcium ion binding GO:0005509
Interacting selectively and non-covalently with calcium ions (Ca2+).
5 O74435 (/ISM) Q584G1 (/ISM) Q584G1 (/ISM) Q584G1 (/ISM) Q584G1 (/ISM)
G-protein beta/gamma-subunit complex binding GO:0031683
Interacting selectively and non-covalently with a complex of G-protein beta/gamma subunits.
2 P41209 (/IDA) Q8K4K1 (/IDA)
Heterotrimeric G-protein binding GO:0032795
Interacting selectively and non-covalently with a heterotrimeric G-protein.
2 P41209 (/IDA) Q8K4K1 (/IDA)
Dynein heavy chain binding GO:0045504
Interacting selectively and non-covalently with a heavy chain of the dynein complex.
2 P05434 (/IPI) P05434 (/IPI)
Calcium ion binding GO:0005509
Interacting selectively and non-covalently with calcium ions (Ca2+).
1 Q8K4K1 (/IDA)
Microtubule binding GO:0008017
Interacting selectively and non-covalently with microtubules, filaments composed of tubulin monomers.
1 P41209 (/IDA)

There are 7 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
Spindle pole body duplication GO:0030474
Construction of a new spindle pole body.
10 P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP)
Proteasome-mediated ubiquitin-dependent protein catabolic process GO:0043161
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, and mediated by the proteasome.
10 P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP)
Regulation of kinase activity GO:0043549
Any process that modulates the frequency, rate or extent of kinase activity, the catalysis of the transfer of a phosphate group, usually from ATP, to a substrate molecule.
10 P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP) P06704 (/IMP)
Centriole replication GO:0007099
The cell cycle process in which a daughter centriole is formed perpendicular to an existing centriole. An immature centriole contains a ninefold radially symmetric array of single microtubules; mature centrioles consist of a radial array of nine microtubule triplets, doublets, or singlets depending upon the species and cell type. Duplicated centrioles also become the ciliary basal body in cells that form cilia during G0.
4 Q584G1 (/IMP) Q584G1 (/IMP) Q584G1 (/IMP) Q584G1 (/IMP)
Cellular response to heat GO:0034605
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 heat stimulus, a temperature stimulus above the optimal temperature for that organism.
1 P41209 (/IDA)
Proteasome-mediated ubiquitin-dependent protein catabolic process GO:0043161
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, and mediated by the proteasome.
1 O74435 (/ISO)
Mitotic spindle pole body duplication GO:1903087
Any spindle pole body duplication that is involved in the mitotic cell cycle.
1 O74435 (/IMP)

There are 19 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
Centrosome GO:0005813
A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
10 P41209 (/IDA) Q584G1 (/IDA) Q584G1 (/IDA) Q584G1 (/IDA) Q584G1 (/IDA) Q8IJC7 (/IDA) Q8IJC7 (/IDA) Q8IJC7 (/IDA) Q8IJC7 (/IDA) Q8IJC7 (/IDA)
Half bridge of spindle pole body GO:0005825
Structure adjacent to the plaques of the spindle pole body.
10 P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA)
Transcription export complex 2 GO:0070390
A protein complex that couples SAGA-dependent gene expression to mRNA export at the inner side of the nuclear pore complex (NPC). The TREX-2 complex is tethered to the inner side of the NPC via the nucleoporins Nup1 and Nup60; in S. cerevisiae it contains Sac3p, Thp1p, Sem1, Sus1p and Cdc31p.
10 P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA) P06704 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
5 Q4Q2W1 (/ISO) Q4Q2W1 (/ISO) Q4Q2W1 (/ISO) Q4Q2W1 (/ISO) Q4Q2W1 (/ISO)
Nuclear membrane GO:0031965
Either of the lipid bilayers that surround the nucleus and form the nuclear envelope; excludes the intermembrane space.
5 Q8IJC7 (/IDA) Q8IJC7 (/IDA) Q8IJC7 (/IDA) Q8IJC7 (/IDA) Q8IJC7 (/IDA)
Cytoplasm GO:0005737
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
4 Q584G1 (/IDA) Q584G1 (/IDA) Q584G1 (/IDA) Q584G1 (/IDA)
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
4 Q584G1 (/RCA) Q584G1 (/RCA) Q584G1 (/RCA) Q584G1 (/RCA)
Inner dynein arm GO:0036156
Inner arm structure present on the outer doublet microtubules of ciliary and flagellar axonemes. The structure of inner dynein arms is complex and may vary within the axoneme. Inner dynein arms are heteromeric, comprising 8 different heavy chains and various subunits. Inner and outer dynein arms have different functions in the generation of microtubule-based motility.
2 P05434 (/IDA) P05434 (/IDA)
Spindle pole GO:0000922
Either of the ends of a spindle, where spindle microtubules are organized; usually contains a microtubule organizing center and accessory molecules, spindle microtubules and astral microtubules.
1 P41209 (/ISO)
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 O74435 (/HDA)
Centrosome GO:0005813
A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
1 P41209 (/ISO)
Centriole GO:0005814
A cellular organelle, found close to the nucleus in many eukaryotic cells, consisting of a small cylinder with microtubular walls, 300-500 nm long and 150-250 nm in diameter. It contains nine short, parallel, peripheral microtubular fibrils, each fibril consisting of one complete microtubule fused to two incomplete microtubules. Cells usually have two centrioles, lying at right angles to each other. At division, each pair of centrioles generates another pair and the twin pairs form the pole of the mitotic spindle.
1 Q8K4K1 (/IDA)
Centriole GO:0005814
A cellular organelle, found close to the nucleus in many eukaryotic cells, consisting of a small cylinder with microtubular walls, 300-500 nm long and 150-250 nm in diameter. It contains nine short, parallel, peripheral microtubular fibrils, each fibril consisting of one complete microtubule fused to two incomplete microtubules. Cells usually have two centrioles, lying at right angles to each other. At division, each pair of centrioles generates another pair and the twin pairs form the pole of the mitotic spindle.
1 P41209 (/ISO)
Microtubule organizing center GO:0005815
An intracellular structure that can catalyze gamma-tubulin-dependent microtubule nucleation and that can anchor microtubules by interacting with their minus ends, plus ends or sides.
1 P41209 (/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 O74435 (/HDA)
Photoreceptor connecting cilium GO:0032391
The portion of the photoreceptor cell cilium linking the photoreceptor inner and outer segments. It's considered to be equivalent to the ciliary transition zone.
1 P41209 (/IDA)
Ciliary basal body GO:0036064
A membrane-tethered, short cylindrical array of microtubules and associated proteins found at the base of a eukaryotic cilium (also called flagellum) that is similar in structure to a centriole and derives from it. The cilium basal body is the site of assembly and remodelling of the cilium and serves as a nucleation site for axoneme growth. As well as anchoring the cilium, it is thought to provide a selective gateway regulating the entry of ciliary proteins and vesicles by intraflagellar transport.
1 Q8K4K1 (/IDA)
Mitotic spindle pole body GO:0044732
The microtubule organizing center that forms as part of the mitotic cell cycle; functionally homologous to the animal cell centrosome.
1 O74435 (/HDA)
Half bridge of mitotic spindle pole body GO:0061496
Structure adjacent to the plaques of the mitotic spindle pole body.
1 O74435 (/IDA)