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Details on Person UniProt:P56748 CLDN8

Class:IdReferenceGeneProduct:52246
_chainChangeLogchain:1-225 added on Fri February 6 2015
_displayNameUniProt:P56748 CLDN8
_timestamp2024-11-03 19:50:28
chainchain:1-225
checksumF7920E8E71682473
commentFUNCTION Can associate with other claudins to regulate tight junction structural and functional strand dynamics (By similarity). May coassemble with CLDN4 into tight junction strands containing anion-selective channels that convey paracellular chloride permeability in renal collecting ducts (By similarity) (PubMed:36008380). Cannot form tight junction strands on its own (PubMed:36008380).CATALYTIC ACTIVITY chloride(in) = chloride(out)CATALYTIC ACTIVITY bromide(in) = bromide(out)CATALYTIC ACTIVITY iodide(out) = iodide(in)CATALYTIC ACTIVITY fluoride(in) = fluoride(out)SUBUNIT Can form heteropolymeric strands with other claudins (PubMed:36008380). Directly interacts with TJP1/ZO-1, TJP2/ZO-2 and TJP3/ZO-3. Interacts with CLDN4; forms coassem. Interacts with KLHL3.INTERACTION Localizes to tight junctions in all 3 segments of the epididymis, in the caput found in the lateral margins of principal cells, and in the corpus at the interface between basal and principal cells.TISSUE SPECIFICITY Expressed in the epididymis, mainly in the caput segment.PTM Ubiquitinated by the BCR(KLHL3) E3 ubiquitin ligase complex in the kidney, leading to its degradation.SIMILARITY Belongs to the claudin family.
descriptionrecommendedName: Claudin-8
geneNameCLDN8
UNQ779/PRO1573
identifierP56748
isSequenceChangedFALSE
keywordCell junction
Cell membrane
Membrane
Proteomics identification
Reference proteome
Tight junction
Transmembrane
Transmembrane helix
Ubl conjugation
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameCLDN8
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8989448] ENSEMBL:ENSG00000156284 CLDN8 [Homo sapiens]
secondaryIdentifierCLD8_HUMAN
D3DSE3
Q53EX7
sequenceLength225
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:419968] CLDN8 [plasma membrane] [Homo sapiens]
[EntityWithAccessionedSequence:421243] CLDN8 [cell junction] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:P56748 CLDN8 (52246)