Tight junction protein 1

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Identifiers
Aliases
External IDs	GeneCards: [1]
Orthologs
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a
Wikidata
View/Edit Human

Not to be confused with Occludin.

Zonula occludens-1 ZO-1, also known as Tight junction protein-1 is a 220-kD peripheral membrane protein that is encoded by the TJP1 gene in humans. It belongs to the family of zona occludens proteins (ZO-1, ZO-2, and ZO-3), which are tight junction-associated proteins and of which, ZO-1 is the first to be cloned. It was first isolated in 1986 by Stevenson and Goodenough using a monoclonal antibody raised in rodent liver to recognise a 225-kD polypeptide in whole liver homogenates and in tight junction-enriched membrane fractions. It has a role as a scaffold protein which cross-links and anchors Tight Junction (TJ) strand proteins, which are fibril-like structures within the lipid bilayer, to the actin cytoskeleton.

Function

This gene encodes a protein located on a cytoplasmic membrane surface of intercellular tight junctions. The encoded protein may be involved in signal transduction at cell–cell junctions. Two transcript variants encoding distinct isoforms have been identified for this gene.

Interactions

Tight junction protein 1 has been shown to interact with:

• F11 receptor,
• GJA3,
• GJA8,
• Gap junction protein, alpha 1,
• KIRREL,
• MLLT4,
• Occludin,
• TJP3, and
• Tight junction protein 2.

See also

• Tight junction

Further reading

• González-Mariscal L, Betanzos A, Avila-Flores A (Aug 2000). "MAGUK proteins: structure and role in the tight junction". Seminars in Cell & Developmental Biology. 11 (4): 315–24. doi:10.1006/scdb.2000.0178. PMID 10966866.
• Anderson NL, Anderson NG (Nov 2002). "The human plasma proteome: history, character, and diagnostic prospects". Molecular & Cellular Proteomics. 1 (11): 845–67. doi:10.1074/mcp.R200007-MCP200. PMID 12488461.
• Zan L, Wu H, Jiang J, Zhao S, Song Y, Teng G, Li H, Jia Y, Zhou M, Zhang X, Qi J, Wang J (Jul 2011). "Temporal profile of Src, SSeCKS, and angiogenic factors after focal cerebral ischemia: correlations with angiogenesis and cerebral edema". Neurochemistry International. 58 (8): 872–9. doi:10.1016/j.neuint.2011.02.014. PMC 3100427. PMID 21334414.
• Zan L, Zhang X, Xi Y, Wu H, Song Y, Teng G, Li H, Qi J, Wang J (Mar 2014). "Src regulates angiogenic factors and vascular permeability after focal cerebral ischemia-reperfusion". Neuroscience. 262: 118–28. doi:10.1016/j.neuroscience.2013.12.060. PMC 3943922. PMID 24412374.
• Willott E, Balda MS, Heintzelman M, Jameson B, Anderson JM (May 1992). "Localization and differential expression of two isoforms of the tight junction protein ZO-1". The American Journal of Physiology. 262 (5 Pt 1): C1119–24. PMID 1590354.
• Van Itallie CM, Balda MS, Anderson JM (Apr 1995). "Epidermal growth factor induces tyrosine phosphorylation and reorganization of the tight junction protein ZO-1 in A431 cells". Journal of Cell Science. 108 (4): 1735–42. PMID 7542259.
• Balda MS, Anderson JM (Apr 1993). "Two classes of tight junctions are revealed by ZO-1 isoforms". The American Journal of Physiology. 264 (4 Pt 1): C918–24. PMID 7682777.
• Furuse M, Itoh M, Hirase T, Nagafuchi A, Yonemura S, Tsukita S, Tsukita S (Dec 1994). "Direct association of occludin with ZO-1 and its possible involvement in the localization of occludin at tight junctions". The Journal of Cell Biology. 127 (6 Pt 1): 1617–26. doi:10.1083/jcb.127.6.1617. PMC 2120300. PMID 7798316.
• Willott E, Balda MS, Fanning AS, Jameson B, Van Itallie C, Anderson JM (Aug 1993). "The tight junction protein ZO-1 is homologous to the Drosophila discs-large tumor suppressor protein of septate junctions". Proceedings of the National Academy of Sciences of the United States of America. 90 (16): 7834–8. doi:10.1073/pnas.90.16.7834. PMC 47237. PMID 8395056.
• Itoh M, Nagafuchi A, Yonemura S, Kitani-Yasuda T, Tsukita S, Tsukita S (May 1993). "The 220-kD protein colocalizing with cadherins in non-epithelial cells is identical to ZO-1, a tight junction-associated protein in epithelial cells: cDNA cloning and immunoelectron microscopy". The Journal of Cell Biology. 121 (3): 491–502. doi:10.1083/jcb.121.3.491. PMC 2119563. PMID 8486731.
• Andersson B, Wentland MA, Ricafrente JY, Liu W, Gibbs RA (Apr 1996). "A "double adaptor" method for improved shotgun library construction". Analytical Biochemistry. 236 (1): 107–13. doi:10.1006/abio.1996.0138. PMID 8619474.
• Yu W, Andersson B, Worley KC, Muzny DM, Ding Y, Liu W, Ricafrente JY, Wentland MA, Lennon G, Gibbs RA (Apr 1997). "Large-scale concatenation cDNA sequencing". Genome Research. 7 (4): 353–8. doi:10.1101/gr.7.4.353. PMC 139146. PMID 9110174.
• Itoh M, Nagafuchi A, Moroi S, Tsukita S (Jul 1997). "Involvement of ZO-1 in cadherin-based cell adhesion through its direct binding to alpha catenin and actin filaments". The Journal of Cell Biology. 138 (1): 181–92. doi:10.1083/jcb.138.1.181. PMC 2139940. PMID 9214391.
• Haskins J, Gu L, Wittchen ES, Hibbard J, Stevenson BR (Apr 1998). "ZO-3, a novel member of the MAGUK protein family found at the tight junction, interacts with ZO-1 and occludin". The Journal of Cell Biology. 141 (1): 199–208. doi:10.1083/jcb.141.1.199. PMC 2132714. PMID 9531559.
• Moroi S, Saitou M, Fujimoto K, Sakakibara A, Furuse M, Yoshida O, Tsukita S (Jun 1998). "Occludin is concentrated at tight junctions of mouse/rat but not human/guinea pig Sertoli cells in testes". The American Journal of Physiology. 274 (6 Pt 1): C1708–17. PMID 9611137.
• Giepmans BN, Moolenaar WH (1998). "The gap junction protein connexin43 interacts with the second PDZ domain of the zona occludens-1 protein". Current Biology. 8 (16): 931–4. doi:10.1016/S0960-9822(07)00375-2. PMID 9707407.
• Katsube T, Takahisa M, Ueda R, Hashimoto N, Kobayashi M, Togashi S (Nov 1998). "Cortactin associates with the cell-cell junction protein ZO-1 in both Drosophila and mouse". The Journal of Biological Chemistry. 273 (45): 29672–7. doi:10.1074/jbc.273.45.29672. PMID 9792678.
• Fanning AS, Jameson BJ, Jesaitis LA, Anderson JM (Nov 1998). "The tight junction protein ZO-1 establishes a link between the transmembrane protein occludin and the actin cytoskeleton". The Journal of Biological Chemistry. 273 (45): 29745–53. doi:10.1074/jbc.273.45.29745. PMID 9792688.
• Itoh M, Morita K, Tsukita S (Feb 1999). "Characterization of ZO-2 as a MAGUK family member associated with tight as well as adherens junctions with a binding affinity to occludin and alpha catenin". The Journal of Biological Chemistry. 274 (9): 5981–6. doi:10.1074/jbc.274.9.5981. PMID 10026224.
• Yamamoto T, Harada N, Kawano Y, Taya S, Kaibuchi K (May 1999). "In vivo interaction of AF-6 with activated Ras and ZO-1". Biochemical and Biophysical Research Communications. 259 (1): 103–7. doi:10.1006/bbrc.1999.0731. PMID 10334923.
• Wittchen ES, Haskins J, Stevenson BR (Dec 1999). "Protein interactions at the tight junction. Actin has multiple binding partners, and ZO-1 forms independent complexes with ZO-2 and ZO-3". The Journal of Biological Chemistry. 274 (49): 35179–85. doi:10.1074/jbc.274.49.35179. PMID 10575001.
• Cario E, Gerken G, Podolsky DK (July 2004). "Toll-like receptor 2 enhances ZO-1-associated intestinal epithelial barrier integrity via protein kinase C". Gastroenterology. 127 (1): 224–38. doi:10.1053/j.gastro.2004.04.015. PMID 15236188.