The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was named:

"
Helix hairpin bin
".

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 3: Tubulin beta chain

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 5 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).
7 P02557 (/IPI) P02557 (/IPI) P02557 (/IPI) P02557 (/IPI) P02557 (/IPI) P05219 (/IPI) Q6P602 (/IPI)
Structural constituent of cytoskeleton GO:0005200
The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
2 A0A1D8PC97 (/IGI) A0A1D8PC97 (/IGI)
GTPase activity GO:0003924
Catalysis of the reaction: GTP + H2O = GDP + phosphate.
1 P05219 (/ISM)
Structural constituent of cytoskeleton GO:0005200
The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
1 P10653 (/ISO)
GTP binding GO:0005525
Interacting selectively and non-covalently with GTP, guanosine triphosphate.
1 P05219 (/IC)

There are 25 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
Mitotic sister chromatid segregation GO:0000070
The cell cycle process in which replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the mitotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner. One homolog of each morphologic type goes into each of the resulting chromosome sets.
5 P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC)
Cytoskeleton organization GO:0007010
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures.
5 P02557 (/IMP) P02557 (/IMP) P02557 (/IMP) P02557 (/IMP) P02557 (/IMP)
Microtubule-based process GO:0007017
Any cellular process that depends upon or alters the microtubule cytoskeleton, that part of the cytoskeleton comprising microtubules and their associated proteins.
5 P02557 (/IMP) P02557 (/IMP) P02557 (/IMP) P02557 (/IMP) P02557 (/IMP)
Nuclear migration along microtubule GO:0030473
The directed movement of the nucleus along microtubules within the cell, mediated by motor proteins.
5 P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC)
Homologous chromosome segregation GO:0045143
The cell cycle process in which replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the first division of the meiotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner; this pairing off, referred to as synapsis, permits genetic recombination. One homolog (both sister chromatids) of each morphologic type goes into each of the resulting chromosome sets.
5 P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC)
Mitotic spindle assembly GO:0090307
The aggregation, arrangement and bonding together of a set of components to form the spindle that contributes to the process of mitosis.
5 P02557 (/IMP) P02557 (/IMP) P02557 (/IMP) P02557 (/IMP) P02557 (/IMP)
Positive regulation of intracellular protein transport GO:0090316
Any process that activates or increases the frequency, rate or extent of the directed movement of proteins within cells.
5 P02557 (/IMP) P02557 (/IMP) P02557 (/IMP) P02557 (/IMP) P02557 (/IMP)
Cytoplasmic microtubule organization GO:0031122
A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of structures formed of microtubules and associated proteins in the cytoplasm of a cell.
2 P05219 (/IMP) P12456 (/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.
2 A0A1D8PC97 (/IMP) A0A1D8PC97 (/IMP)
Mitotic sister chromatid segregation GO:0000070
The cell cycle process in which replicated homologous chromosomes are organized and then physically separated and apportioned to two sets during the mitotic cell cycle. Each replicated chromosome, composed of two sister chromatids, aligns at the cell equator, paired with its homologous partner. One homolog of each morphologic type goes into each of the resulting chromosome sets.
1 P10653 (/IMP)
Microtubule-based process GO:0007017
Any cellular process that depends upon or alters the microtubule cytoskeleton, that part of the cytoskeleton comprising microtubules and their associated proteins.
1 P10653 (/ISO)
Microtubule depolymerization GO:0007019
The removal of tubulin heterodimers from one or both ends of a microtubule.
1 P10653 (/IMP)
Mechanosensory behavior GO:0007638
Behavior that is dependent upon the sensation of a mechanical stimulus.
1 P12456 (/IGI)
Mechanosensory behavior GO:0007638
Behavior that is dependent upon the sensation of a mechanical stimulus.
1 P12456 (/IMP)
Response to mechanical stimulus GO:0009612
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 mechanical stimulus.
1 P12456 (/IMP)
Nuclear migration along microtubule GO:0030473
The directed movement of the nucleus along microtubules within the cell, mediated by motor proteins.
1 P10653 (/IMP)
Intracellular distribution of mitochondria GO:0048312
Any process that establishes the spatial arrangement of mitochondria within the cell.
1 P05219 (/IMP)
Detection of mechanical stimulus involved in sensory perception GO:0050974
The series of events in which a mechanical stimulus is received and converted into a molecular signal as part of sensory perception.
1 P12456 (/IMP)
Detection of mechanical stimulus involved in sensory perception of touch GO:0050976
The series of events involved in the perception of touch in which a mechanical stimulus is received and converted into a molecular signal.
1 P12456 (/IGI)
Mitotic spindle disassembly GO:0051228
The controlled breakdown of the spindle during a mitotic cell cycle.
1 P10653 (/IMP)
Establishment or maintenance of cell polarity regulating cell shape GO:0071963
Any cellular process that results in the specification, formation or maintenance of a polarized intracellular organization or cell growth patterns that regulate the shape of a cell.
1 P05219 (/IMP)
Nuclear migration by microtubule mediated pushing forces GO:0098863
The directed movement of the nucleus by pushing forces exerted by polymerization of backward-extending microtubules.
1 P05219 (/IDA)
Mitotic spindle pole body duplication GO:1903087
Any spindle pole body duplication that is involved in the mitotic cell cycle.
1 P05219 (/IMP)
Positive regulation of detection of mechanical stimulus involved in sensory perception of touch GO:1905789
Any process that activates or increases the frequency, rate or extent of detection of mechanical stimulus involved in sensory perception of touch.
1 P12456 (/IGI)
Positive regulation of mechanosensory behavior GO:1905792
Any process that activates or increases the frequency, rate or extent of mechanosensory behavior.
1 P12456 (/IGI)

There are 15 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
Kinetochore microtubule GO:0005828
Any of the spindle microtubules that attach to the kinetochores of chromosomes by their plus ends, and maneuver the chromosomes during mitotic or meiotic chromosome segregation.
5 P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC)
Nuclear microtubule GO:0005880
Any microtubule in the nucleus of a cell.
5 P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC)
Cytoplasmic microtubule GO:0005881
Any microtubule in the cytoplasm of a cell.
5 P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC) P02557 (/IC)
Tubulin complex GO:0045298
A heterodimer of tubulins alpha and beta that constitutes the protomer for microtubule assembly.
5 P02557 (/IDA) P02557 (/IDA) P02557 (/IDA) P02557 (/IDA) P02557 (/IDA)
Tubulin complex GO:0045298
A heterodimer of tubulins alpha and beta that constitutes the protomer for microtubule assembly.
5 P02557 (/IPI) P02557 (/IPI) P02557 (/IPI) P02557 (/IPI) P02557 (/IPI)
Spindle microtubule GO:0005876
Any microtubule that is part of a mitotic or meiotic spindle; anchored at one spindle pole.
4 A0A1D8PC97 (/IDA) A0A1D8PC97 (/IDA) P05219 (/IDA) P10653 (/IDA)
Spindle pole body GO:0005816
The microtubule organizing center in fungi; functionally homologous to the animal cell centrosome.
2 A0A1D8PC97 (/IDA) A0A1D8PC97 (/IDA)
Cytoplasmic microtubule GO:0005881
Any microtubule in the cytoplasm of a cell.
2 P05219 (/IMP) P10653 (/IMP)
Tubulin complex GO:0045298
A heterodimer of tubulins alpha and beta that constitutes the protomer for microtubule assembly.
2 A0A1D8PC97 (/ISS) A0A1D8PC97 (/ISS)
Astral microtubule GO:0000235
Any of the spindle microtubules that radiate in all directions from the spindle poles and are thought to contribute to the forces that separate the poles and position them in relation to the rest of the cell.
1 P05219 (/NAS)
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 P05219 (/IC)
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 P05219 (/HDA)
Neuron projection GO:0043005
A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
1 P12456 (/IDA)
Neuronal cell body GO:0043025
The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
1 P12456 (/IDA)
Tubulin complex GO:0045298
A heterodimer of tubulins alpha and beta that constitutes the protomer for microtubule assembly.
1 P10653 (/ISO)
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