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Details on Person UniProt:O54991 Cntnap1

Class:IdReferenceGeneProduct:88317
_chainChangeLogsignal peptide:1-20 added on Fri February 6 2015;chain:21-1385 added on Fri February 6 2015
_displayNameUniProt:O54991 Cntnap1
_timestamp2024-08-09 19:28:59
chainsignal peptide:1-20
chain:21-1385
checksumB10BA6F150C27BA2
commentFUNCTION Required, with CNTNAP2, for radial and longitudinal organization of myelinated axons (PubMed:25378149). Plays a role in the formation of functional distinct domains critical for saltatory conduction of nerve impulses in myelinated nerve fibers. Demarcates the paranodal region of the axo-glial junction. In association with contactin involved in the signaling between axons and myelinating glial cells (PubMed:11395000, PubMed:25378149).SUBUNIT Interacts with CNTN1/contactin in cis form.SUBCELLULAR LOCATION Expressed in brain. In myelinated nerve fibers predominantly found in paranodal axoglial junctions. In the internodal region of myelinated axons in the CNS and the PNS also found as a thin line apposing the inner mesaxon of the myelin sheath. In PNS neurons this line forms a circumferential ring that apposes the innermost aspect of Schmidt-Lanterman incisures.DISRUPTION PHENOTYPE Mutant mice exhibit tremor, ataxia, and significant motor paresis. Normal paranodal junctions fail to form, and the organization of the paranodal loops is disrupted. Contactin is undetectable in the paranodes, and potassium channels are displaced from the juxtaparanodal into the paranodal domains. Also results in a severe decrease in peripheral nerve conduction velocity (PubMed:11395000, PubMed:25378149). Double mutants CNTNAP1 and CNTNAP2 have wider Ranvier nodes compared to wild-type littermates (PubMed:25378149).SIMILARITY Belongs to the neurexin family.
descriptionrecommendedName: Contactin-associated protein 1 shortName: Caspr shortName: Caspr1 alternativeName: MHDNIV alternativeName: NCP1 alternativeName: Neurexin IV alternativeName: Neurexin-4 alternativeName: Paranodin
geneNameCntnap1
Nrxn4
identifierO54991
isSequenceChangedFALSE
keywordCell adhesion
Cell junction
Disulfide bond
EGF-like domain
Glycoprotein
Membrane
Phosphoprotein
Reference proteome
Repeat
SH3-binding
Signal
Transmembrane
Transmembrane helix
modified[InstanceEdit:143527] Schmidt, EE, 2004-11-12 07:45:10
[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
[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:5263031] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:6807888] Weiser, JD
[InstanceEdit:9015733] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
nameCntnap1
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierCNTP1_MOUSE
A2A4K6
sequenceLength1385
species[Species:48892] Mus musculus
(referenceEntity)[EntityWithAccessionedSequence:373617] Contactin-associated protein 1 [plasma membrane] [Mus musculus]
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No pathways have been reviewed or authored by UniProt:O54991 Cntnap1 (88317)