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Details on Person UniProt:Q640N2 Arl13b

Class:IdReferenceGeneProduct:218955
_chainChangeLogchain:1-427 added on Sat February 7 2015
_displayNameUniProt:Q640N2 Arl13b
_timestamp2024-08-09 19:18:52
chainchain:1-427
checksumAC131D386B999ABB
commentFUNCTION Cilium-specific protein required to control the microtubule-based, ciliary axoneme structure. May act by maintaining the association between IFT subcomplexes A and B. Binds GTP but is not able to hydrolyze it; the GTPase activity remains unclear. Required to pattern the neural tube. Involved in cerebral cortex development: required for the initial formation of a polarized radial glial scaffold, the first step in the construction of the cerebral cortex, by regulating ciliary signaling (PubMed:23817546). Regulates the migration and placement of postmitotic interneurons in the developing cerebral cortex (PubMed:23153492). Plays a role in ciliar trafficking of phosphatidylinositol phosphatase INPP5E in ciliogenesis (By similarity). May regulate ARF6- and RAB22A-dependent endocytic recycling traffic (By similarity).SUBUNIT Monomer. Interacts with IFT complex B components IFT46 and IFT74 (By similarity). Interacts with CIMAP3 (By similarity) (PubMed:20643351). Interacts with EXOC2; regulates ARL13B localization to the cilium membrane (PubMed:26582389). Interacts with actin; the interaction mediates colocalization of ARL13B and microtubules (By similarity).SUBCELLULAR LOCATION Associates with the cilium membrane via palmitoylation. Localizes to proximal ciliary membranes, to an inversin-like subciliary membrane compartment, excluding the transition zone.TISSUE SPECIFICITY Cilium-specific protein. Expressed in neuroepithelial cells and developing radial glia of the developing cerebral cortex: present in both neuroepithelial and radial progenitor cells. In radial progenitors, found in the apical, cell soma domains of these cells (at protein level). Expressed in the primary cilia of postmitotic cortical neurons during embryonic and postnatal development.DOMAIN The C-terminal domain is required for localization to microtubules and the cell membrane.PTM Sumoylation is required for PKD2 entry into cilium.DISRUPTION PHENOTYPE Impaired cilium's ability to convey critical extracellular signals such as Shh, without destroying cilia and their downstream pathways. Mice show a constitutive low-level of Shh activity owing to loss of modulation of Gli2 activator, corresponding to the specification of progenitors of motoneurons through most of the neural tube. In contrast to other mouse mutants that disrupt cilia, Gli3 repressor activity is unaffected in mutants (PubMed:17488627). Mutants show abnormal cilia in which components of Shh signaling are not regulated properly: Ptch1 and Smo localize to cilia regardless of Shh stimulation, and there is no Gli enrichment in cilia upon Shh stimulation (PubMed:21976698). Conditional deletion disrupts interneuronal placement, but not postmigratory differentiation in the developing cerebral cortex (PubMed:23153492). Early neuroepithelial-specific deletion in cortical progenitors induces a reversal of the apical-basal polarity of radial progenitors and aberrant neuronal placement (PubMed:23817546).MISCELLANEOUS Used as a ciliary marker because of its specific localization to microtubule doublets of the ciliary axoneme. Frequently used to study cilium signaling, since in contrast to most cilia null mutants, deletion of Arl13b impairs without destroying cilia and their downstream pathways (PubMed:23817546).SIMILARITY Belongs to the small GTPase superfamily. Arf family.
created[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
descriptionrecommendedName: ADP-ribosylation factor-like protein 13B alternativeName: ADP-ribosylation factor-like protein 2-like 1 shortName: ARL2-like protein 1 alternativeName: Protein hennin
geneNameArl13b
Arl2l1
identifierQ640N2
isSequenceChangedFALSE
keywordCell membrane
Cell projection
Cilium
Coiled coil
Developmental protein
GTP-binding
Lipoprotein
Membrane
Nucleotide-binding
Palmitate
Phosphoprotein
Reference proteome
Ubl conjugation
modified[InstanceEdit:354386] Schmidt, EE, 2008-06-18 04:45:12
[InstanceEdit:384350] Kanapin, AA, 2008-11-26 14:00:39
[InstanceEdit:392885] Kanapin, AA, 2009-03-09 12:07:18
[InstanceEdit:400710] Schmidt, EE, 2009-03-25 05:33:35
[InstanceEdit:423310] Kanapin, AA
[InstanceEdit:435478] Kanapin, AA
[InstanceEdit:435871] Kanapin, AA
[InstanceEdit:447347] Kanapin, AA
[InstanceEdit:525883] Kanapin, AA
[InstanceEdit:613449] Kanapin, AA
[InstanceEdit:797602] Kanapin, AA
[InstanceEdit:937368] Yung, CK
[InstanceEdit:1042053] Yung, CK
[InstanceEdit:1220657] Yung, CK
[InstanceEdit:1300696] Yung, CK
[InstanceEdit:1301627] Yung, CK
[InstanceEdit:1551960] Weiser, JD
[InstanceEdit:1995863] Weiser, JD
[InstanceEdit:2132304] Weiser, JD
[InstanceEdit:2265580] Weiser, JD
[InstanceEdit:2587579] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9773244] Weiser, Joel
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
nameArl13b
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierAR13B_MOUSE
G3X9K5
sequenceLength427
species[Species:48892] Mus musculus
(referenceEntity)[EntityWithAccessionedSequence:9639686] Arl13b [cilium] [Mus musculus]
[EntityWithAccessionedSequence:9639719] Misfolded Arl13b [cilium] [Mus musculus]
[EntityWithAccessionedSequence:9640118] Misfolded Arl13b [cytosol] [Mus musculus]
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No pathways have been reviewed or authored by UniProt:Q640N2 Arl13b (218955)