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cilium

Term Information

Accession
GO:0005929
Name
cilium
Ontology
cellular_component
Synonyms
eukaryotic flagellum, microtubule-based flagellum, flagellum, primary cilium
Alternate IDs
GO:0072372
Definition
A specialized eukaryotic organelle that consists of a filiform extrusion of the cell surface and of some cytoplasmic parts. Each cilium is largely bounded by an extrusion of the cytoplasmic (plasma) membrane, and contains a regular longitudinal array of microtubules, anchored to a basal body. Source: PMID:16824949, GOC:curators, GOC:cilia, PMID:17009929, ISBN:0198547684, GOC:vw, GOC:kmv, PMID:20144998
Comment
Note that we deem cilium and microtubule-based flagellum to be equivalent. In most eukaryotic species, intracellular sub-components of the cilium, such as the ciliary base and rootlet, are located near the plasma membrane. In Diplomonads such as Giardia, instead, the same ciliary parts are located further intracellularly. Also, 'cilium' may be used when axonemal structure and/or motility are unknown, or when axonemal structure is unusual. For all other cases, please refer to children of 'cilium'. Finally, note that any role of ciliary proteins in sensory events should be captured by annotating to relevant biological process terms.
History
See term history for GO:0005929 at QuickGO
Subset
goslim_chembl
goslim_drosophila
goslim_generic
goslim_pir
Feedback
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Graph of GO:0005929

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Parents of cilium (GO:0005929)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
cilium [is_a relation] is_a  plasma membrane bounded cell projection (GO:0120025)
cilium [BFO:0000051 relation] BFO:0000051  intraciliary transport particle (GO:0030990)
cilium [is_a relation] is_a  membrane-bounded organelle (GO:0043227)
Children of cilium (GO:0005929)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
ciliary pocket (GO:0020016) [BFO:0000050 relation] BFO:0000050  cilium
BBSome (GO:0034464) [BFO:0000050 relation] BFO:0000050  cilium
ciliary rootlet (GO:0035253) [BFO:0000050 relation] BFO:0000050  cilium
intraciliary transport (GO:0042073) [BFO:0000066 relation] BFO:0000066  cilium
ciliary receptor clustering involved in smoothened signaling pathway (GO:0060830) [BFO:0000066 relation] BFO:0000066  cilium
ciliary inversin compartment (GO:0097543) [BFO:0000050 relation] BFO:0000050  cilium
motile cilium (GO:0031514) [is_a relation] is_a  cilium
ciliary shaft (GO:0097544) [BFO:0000050 relation] BFO:0000050  cilium
ciliary basal body (GO:0036064) [BFO:0000050 relation] BFO:0000050  cilium
ring centriole (GO:0061823) [BFO:0000050 relation] BFO:0000050  cilium
non-motile cilium (GO:0097730) [is_a relation] is_a  cilium
ciliary transition zone (GO:0035869) [BFO:0000050 relation] BFO:0000050  cilium
ciliary microtubule quartet (GO:0120260) [BFO:0000050 relation] BFO:0000050  cilium
centriolar subdistal appendage (GO:0120103) [BFO:0000050 relation] BFO:0000050  cilium
ciliary transition fiber (GO:0097539) [BFO:0000050 relation] BFO:0000050  cilium
ciliary membrane (GO:0060170) [BFO:0000050 relation] BFO:0000050  cilium
ciliary tip (GO:0097542) [BFO:0000050 relation] BFO:0000050  cilium
ciliary cap (GO:0061822) [BFO:0000050 relation] BFO:0000050  cilium
ciliary base (GO:0097546) [BFO:0000050 relation] BFO:0000050  cilium
ciliary plasm (GO:0097014) [BFO:0000050 relation] BFO:0000050  cilium
FMA
67181
NIF_Subcellular
sao787716553
Wikipedia
Cilium