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CLDN4
HPA
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  • CLDN4
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

CLDN4
Synonyms CPE-R, CPETR, CPETR1, hCPE-R, WBSCR8
Gene descriptioni

Full gene name according to HGNC.

Claudin 4
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Cancer-related genes
Disease related genes
Human disease related genes
Potential drug targets
Transporters
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Membrane
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 7
Cytoband q11.23
Chromosome location (bp) 73799542 - 73832690
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

3
Ensembl ENSG00000189143 (version 109)
Entrez gene 1364
HGNC HGNC:2046
UniProt O14493 (UniProt - Evidence at protein level)
neXtProt NX_O14493
GeneCards CLDN4
Antibodypedia CLDN4 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Can associate with other claudins to regulate tight junction structural and functional strand dynamics 1, 2. May coassemble with CLDN8 into tight junction strands containing anion-selective channels that convey paracellular chloride permeability in renal collecting ducts (By similarity) 3. May integrate into CLDN3 strands to modulate localized tight junction barrier properties 4, 5. May disrupt strand assembly of channel-forming CLDN2 and CLDN15 and inhibit cation conductance 6, 7. Cannot form tight junction strands on its own 8, 9.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Chloride channel, Ion channel
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Ion transport, Transport
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

Chloride
Gene summary (Entrez)i

Useful information about the gene from Entrez

The protein encoded by this intronless gene belongs to the claudin family. Claudins are integral membrane proteins that are components of the epithelial cell tight junctions, which regulate movement of solutes and ions through the paracellular space. This protein is a high-affinity receptor for Clostridium perfringens enterotoxin (CPE) and may play a role in internal organ development and function during pre- and postnatal life. This gene is deleted in Williams-Beuren syndrome, a neurodevelopmental disorder affecting multiple systems. [provided by RefSeq, Sep 2013]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
CLDN4-201
ENSP00000342445
ENST00000340958
O14493
[Direct mapping] Claudin-4
Show all
Q75L80
[Target identity:100%; Query identity:100%] Claudin
Show all
Transporters
   Transporter channels and pores
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   3TM proteins predicted by MDM
Cancer-related genes
   Candidate cancer biomarkers
Disease related genes
Potential drug targets
Human disease related genes
   Other congenital disorders
   Chromosomal abnormalities
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005198 [structural molecule activity]
GO:0005254 [chloride channel activity]
GO:0005515 [protein binding]
GO:0005886 [plasma membrane]
GO:0005911 [cell-cell junction]
GO:0005923 [bicellular tight junction]
GO:0006811 [ion transport]
GO:0006821 [chloride transport]
GO:0007155 [cell adhesion]
GO:0007565 [female pregnancy]
GO:0007623 [circadian rhythm]
GO:0009925 [basal plasma membrane]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0016324 [apical plasma membrane]
GO:0016327 [apicolateral plasma membrane]
GO:0016328 [lateral plasma membrane]
GO:0016338 [calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules]
GO:0022604 [regulation of cell morphogenesis]
GO:0030335 [positive regulation of cell migration]
GO:0032570 [response to progesterone]
GO:0034707 [chloride channel complex]
GO:0042802 [identical protein binding]
GO:0061436 [establishment of skin barrier]
GO:0070160 [tight junction]
GO:0070161 [anchoring junction]
GO:0070293 [renal absorption]
GO:0070830 [bicellular tight junction assembly]
GO:0090303 [positive regulation of wound healing]
GO:1902476 [chloride transmembrane transport]
GO:1905050 [positive regulation of metallopeptidase activity]
Show all
209 aa
22.1 kDa
No 3
CLDN4-202
ENSP00000388639
ENST00000431918
O14493
[Direct mapping] Claudin-4
Show all
Q75L80
[Target identity:100%; Query identity:100%] Claudin
Show all
Transporters
   Transporter channels and pores
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   3TM proteins predicted by MDM
Cancer-related genes
   Candidate cancer biomarkers
Disease related genes
Potential drug targets
Human disease related genes
   Other congenital disorders
   Chromosomal abnormalities
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005198 [structural molecule activity]
GO:0005254 [chloride channel activity]
GO:0005515 [protein binding]
GO:0005886 [plasma membrane]
GO:0005911 [cell-cell junction]
GO:0005923 [bicellular tight junction]
GO:0006811 [ion transport]
GO:0006821 [chloride transport]
GO:0007155 [cell adhesion]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0016338 [calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules]
GO:0022604 [regulation of cell morphogenesis]
GO:0030335 [positive regulation of cell migration]
GO:0034707 [chloride channel complex]
GO:0042802 [identical protein binding]
GO:0061436 [establishment of skin barrier]
GO:0070160 [tight junction]
GO:0070161 [anchoring junction]
GO:0070293 [renal absorption]
GO:0070830 [bicellular tight junction assembly]
GO:0090303 [positive regulation of wound healing]
GO:1902476 [chloride transmembrane transport]
GO:1905050 [positive regulation of metallopeptidase activity]
Show all
209 aa
22.1 kDa
No 3
CLDN4-203
ENSP00000409544
ENST00000435050
O14493
[Direct mapping] Claudin-4
Show all
Q75L80
[Target identity:100%; Query identity:100%] Claudin
Show all
Transporters
   Transporter channels and pores
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   3TM proteins predicted by MDM
Cancer-related genes
   Candidate cancer biomarkers
Disease related genes
Potential drug targets
Human disease related genes
   Other congenital disorders
   Chromosomal abnormalities
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0004888 [transmembrane signaling receptor activity]
GO:0005198 [structural molecule activity]
GO:0005254 [chloride channel activity]
GO:0005515 [protein binding]
GO:0005886 [plasma membrane]
GO:0005911 [cell-cell junction]
GO:0005923 [bicellular tight junction]
GO:0006811 [ion transport]
GO:0006821 [chloride transport]
GO:0007155 [cell adhesion]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0016338 [calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules]
GO:0022604 [regulation of cell morphogenesis]
GO:0030335 [positive regulation of cell migration]
GO:0034707 [chloride channel complex]
GO:0042802 [identical protein binding]
GO:0061436 [establishment of skin barrier]
GO:0070160 [tight junction]
GO:0070161 [anchoring junction]
GO:0070293 [renal absorption]
GO:0070830 [bicellular tight junction assembly]
GO:0090303 [positive regulation of wound healing]
GO:1902476 [chloride transmembrane transport]
GO:1905050 [positive regulation of metallopeptidase activity]
Show all
209 aa
22.1 kDa
No 3

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