CLDN7

CLDN7
Identifiers
Aliases	CLDN7 , CEPTRL2, CLDN-7, CPETRL2, Hs.84359, claudin-1, claudin 7
External IDs	OMIM: 609131 MGI: 1859285 HomoloGene: 9649 GeneCards: CLDN7
Gene location (Human)
Chr.	Chromosome 17 (human)
End	7,263,983 bp
Gene location (Mouse)
Chr.	Chromosome 11 (mouse)
End	69,858,711 bp
RNA expression pattern
	Top expressed in
	duodenum; ; rectum; ; right uterine tube; ; minor salivary gland; ; body of pancreas; ; left lobe of thyroid gland; ; islet of Langerhans; ; right lobe of thyroid gland; ; upper lobe of left lung; ; kidney;
	Top expressed in
	crypt of lieberkuhn of small intestine; ; left colon; ; ileum; ; duodenum; ; yolk sac; ; medullary collecting duct; ; jejunum; ; mucosa of urinary bladder; ; intestinal epithelium; ; intestinal villus;
	More reference expression data
	More reference expression data
Gene ontology
Molecular function	structural molecule activity ; identical protein binding ; protein binding ; cell adhesion molecule binding ;
Cellular component	bicellular tight junction ; cell junction ; basolateral plasma membrane ; membrane ; lateral plasma membrane ; integral component of membrane ; apicolateral plasma membrane ; plasma membrane ;
Biological process	negative regulation of protein homooligomerization ; negative regulation of cell adhesion ; positive regulation of cell motility ; negative regulation of apoptotic process ; positive regulation of cell population proliferation ; calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules ; response to ethanol ;
	Sources:Amigo / QuickGO
Orthologs
	1366
	53624
	ENSG00000181885 ; ENSG00000288292
	ENSMUSG00000018569
	O95471
	Q9Z261
	NM_001307 ; NM_001185022 ; NM_001185023
	NM_001193619 ; NM_016887
	NP_001171951 ; NP_001171952 ; NP_001298
	NP_001180548 ; NP_058583
	Wikidata
View/Edit Human	View/Edit Mouse

Last updated January 27, 2024

Claudin-7 is a protein that in humans is encoded by the CLDN7 gene.^[5]^[6] It belongs to the group of claudins.

Claudins, such as CLDN7, are involved in the formation of tight junctions between epithelial cells. Tight junctions restrict lateral diffusion of lipids and membrane proteins, and thereby physically define the border between the apical and basolateral compartments of epithelial cells (Zheng et al., 2003).[supplied by OMIM]^[6]

Related Research Articles

<span class="mw-page-title-main">Occludin</span> Mammalian protein found in Homo sapiens

Occludin is a transmembrane protein that regulates the permeability of epithelial and endothelial barriers. It was first identified in epithelial cells as a 65 kDa integral plasma-membrane protein localized at the tight junctions. Together with Claudins, and zonula occludens-1 (ZO-1), occludin has been considered a staple of tight junctions, and although it was shown to regulate the formation, maintenance, and function of tight junctions, its precise mechanism of action remained elusive and most of its actions were initially attributed to conformational changes following selective phosphorylation, and its redox-sensitive dimerization. However, mounting evidence demonstrated that occludin is not only present in epithelial/endothelial cells, but is also expressed in large quantities in cells that do not have tight junctions but have very active metabolism: pericytes, neurons and astrocytes, oligodendrocytes, dendritic cells, monocytes/macrophages lymphocytes, and myocardium. Recent work, using molecular modeling, supported by biochemical and live-cell experiments in human cells demonstrated that occludin is a NADH oxidase that influences critical aspects of cell metabolism like glucose uptake, ATP production and gene expression. Furthermore, manipulation of occludin content in human cells is capable of influencing the expression of glucose transporters, and the activation of transcription factors like NFkB, and histone deacetylases like sirtuins, which proved capable of diminishing HIV replication rates in infected human macrophages under laboratory conditions.

Claudin-1 is a protein that in humans is encoded by the CLDN1 gene. It belongs to the group of claudins.

Tight junction protein ZO-2 is a protein that in humans is encoded by the TJP2 gene.

Claudin 4, also known as CLDN4, is a protein which in humans is encoded by the CLDN4 gene. It belongs to the group of claudins.

Claudin-5 is a protein that in humans is encoded by the CLDN5 gene. It belongs to the group of claudins.

Claudin 3, also known as CLDN3, is a protein which in humans is encoded by the CLDN3 gene. It is a member of the claudin protein family.

Claudin-6 is a protein that in humans is encoded by the CLDN6 gene. It belongs to the group of claudins. The knockout mice of mouse homolog exhibit no phenotype, indicating that claudin-6 is dispensable for normal development and homeostasis.

Claudin-2 is a protein that in humans is encoded by the CLDN2 gene. It belongs to the group of claudins.

Claudin-12 is a protein that in humans is encoded by the CLDN12 gene. It belongs to the group of claudins.

Claudin-8 is a protein that in humans is encoded by the CLDN8 gene. It belongs to the group of claudins.

Claudin-16 is a protein that in humans is encoded by the CLDN16 gene. It belongs to the group of claudins.

Claudin-14 is a protein that in humans is encoded by the CLDN14 gene. It belongs to a related family of proteins called claudins.

Claudin-9 is a protein that in humans is encoded by the CLDN9 gene. It belongs to the group of claudins.

Claudin-17 is a protein that in humans is encoded by the CLDN17 gene. It belongs to the group of claudins; claudins are cell-cell junction proteins that keep that maintains cell- and tissue-barrier function. It forms anion-selective paracellular channels and is localized mainly in kidney proximal tubules.

Claudin-10 is a protein that in humans is encoded by the CLDN10 gene. It belongs to the group of claudins.

Claudin-15 is a protein that in humans is encoded by the CLDN15 gene. It belongs to the group of claudins. Among its related pathways are Blood-Brain Barrier and Immune Cell Transmigration: VCAM-1/CD106 Signaling Pathways and Tight junction. GO annotations related to this gene include identical protein binding and structural molecule activity. An important paralog of this gene is CLDN10.

Claudin-19 is a protein that in humans is encoded by the CLDN19 gene. It belongs to the group of claudins. Claudin-19 has been implicated in magnesium transport.

Claudin-20 is a protein that in humans is encoded by the CLDN20 gene. It belongs to the group of claudins.

Claudin-18 is a protein that in humans is encoded by the CLDN18 gene. It belongs to the group of claudins.

Claudin-22 is a protein that in humans is encoded by the CLDN22 gene. It belongs to the group of claudins.

References

1 2 3 ENSG00000288292 GRCh38: Ensembl release 89: ENSG00000181885, ENSG00000288292 - Ensembl, May 2017
1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000018569 - Ensembl, May 2017
↑ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
↑ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
↑ Morita K, Furuse M, Fujimoto K, Tsukita S (Mar 1999). "Claudin multigene family encoding four-transmembrane domain protein components of tight junction strands". Proc Natl Acad Sci U S A. 96 (2): 511–6. Bibcode:1999PNAS...96..511M. doi: 10.1073/pnas.96.2.511 . PMC 15167 . PMID 9892664.
1 2 "Entrez Gene: CLDN7 claudin 7".

External links

Human CLDN7 genome location and CLDN7 gene details page in the UCSC Genome Browser .

Kniesel U, Wolburg H (2000). "Tight junctions of the blood–brain barrier". Cell. Mol. Neurobiol. 20 (1): 57–76. doi:10.1023/A:1006995910836. PMID 10690502. S2CID 26473781.
Heiskala M, Peterson PA, Yang Y (2001). "The roles of claudin superfamily proteins in paracellular transport". Traffic. 2 (2): 93–8. doi:10.1034/j.1600-0854.2001.020203.x. PMID 11247307. S2CID 12132159.
Tsukita S, Furuse M, Itoh M (2001). "Multifunctional strands in tight junctions". Nat. Rev. Mol. Cell Biol. 2 (4): 285–93. doi:10.1038/35067088. PMID 11283726. S2CID 36524601.
Tsukita S, Furuse M (2003). "Claudin-based barrier in simple and stratified cellular sheets". Curr. Opin. Cell Biol. 14 (5): 531–6. doi:10.1016/S0955-0674(02)00362-9. PMID 12231346.
González-Mariscal L, Betanzos A, Nava P, Jaramillo BE (2003). "Tight junction proteins". Prog. Biophys. Mol. Biol. 81 (1): 1–44. doi:10.1016/S0079-6107(02)00037-8. PMID 12475568.
Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
Peacock RE, Keen TJ, Inglehearn CF (1998). "Analysis of a human gene homologous to rat ventral prostate.1 protein". Genomics. 46 (3): 443–9. doi:10.1006/geno.1997.5033. PMID 9441748.
Itoh M, Furuse M, Morita K, et al. (2000). "Direct Binding of Three Tight Junction-Associated Maguks, Zo-1, Zo-2, and Zo-3, with the Cooh Termini of Claudins". J. Cell Biol. 147 (6): 1351–63. doi:10.1083/jcb.147.6.1351. PMC 2168087 . PMID 10601346.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi: 10.1073/pnas.242603899 . PMC 139241 . PMID 12477932.
Kominsky SL, Argani P, Korz D, et al. (2003). "Loss of the tight junction protein claudin-7 correlates with histological grade in both ductal carcinoma in situ and invasive ductal carcinoma of the breast". Oncogene. 22 (13): 2021–33. doi:10.1038/sj.onc.1206199. PMID 12673207. S2CID 20318884.
Ban Y, Dota A, Cooper LJ, et al. (2003). "Tight junction-related protein expression and distribution in human corneal epithelium". Exp. Eye Res. 76 (6): 663–9. doi:10.1016/S0014-4835(03)00054-X. PMID 12742348.
Zheng JY, Yu D, Foroohar M, et al. (2004). "Regulation of the expression of the prostate-specific antigen by claudin-7". J. Membr. Biol. 194 (3): 187–97. doi:10.1007/s00232-003-2038-4. PMID 14502431. S2CID 8482475.
Resnick MB, Konkin T, Routhier J, et al. (2005). "Claudin-1 is a strong prognostic indicator in stage II colonic cancer: a tissue microarray study". Mod. Pathol. 18 (4): 511–8. doi:10.1038/modpathol.3800301. PMID 15475928. S2CID 28512983.
Liu F, Koval M, Ranganathan S, Fanayan S, Hancock WS, Lundberg EK, Beavis RC, Lane L, Duek P, McQuade L, Kelleher NL, Baker MS (2015). "A systems proteomics view of the endogenous human claudin protein family". J Proteome Res. 15 (2): 339–359. doi:10.1021/acs.jproteome.5b00769. PMC 4777318 . PMID 26680015.

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[refGRCh38Ensembl-1] 1 2 3 ENSG00000288292 GRCh38: Ensembl release 89: ENSG00000181885, ENSG00000288292 - Ensembl, May 2017

[refGRCm38Ensembl-2] 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000018569 - Ensembl, May 2017

[3] "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[4] "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.

[pmid9892664-5] Morita K, Furuse M, Fujimoto K, Tsukita S (Mar 1999). "Claudin multigene family encoding four-transmembrane domain protein components of tight junction strands". Proc Natl Acad Sci U S A. 96 (2): 511–6. Bibcode:1999PNAS...96..511M. doi: 10.1073/pnas.96.2.511 . PMC 15167 . PMID 9892664.

[entrez-6] 1 2 "Entrez Gene: CLDN7 claudin 7".

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CLDN7

Contents

Related Research Articles

References

External links

Further reading