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CD81
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CD81 (synonym Tspan-28) ist ein OberflΓ€chenprotein aus der Gruppe der Tetraspanine.

Contents

β€’ Weblinks

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Eigenschaften

CD81 wird von hÀmatopoetischen, Endothel- und Epithelzellen gebildet, aber auch von hÀmatopoetischen, neuroektodermalen und mesenchymalen Tumor-Zelllinien gebildet. Es kommt nicht in Erythrozyten, BlutplÀttchen und Neutrophilen vor. CD81 ist an der Organisation der Zellmembran, am Proteintransport, an Zellfusionen und Zellkontakten beteiligt.cite-ref-vences-1-0[1] Im Immunsystem reguliert CD81 die immunologische Synapse, die Gruppierung von Rezeptoren in der Zellmembran und mindert die Immunantwort.cite-ref-vences-1-1[1] CD81 bindet an Leu-13. Weiterhin bindet es an Tspan-4,cite-ref-pmid9360996-2-0[2] CD19,cite-ref-pmid1383329-3-0[3]cite-ref-pmid7636191-4-0[4]cite-ref-pmid9804823-5-0[5] CD9,cite-ref-pmid9804823-5-1[5]cite-ref-pmid8630057-6-0[6] PTGFRN,cite-ref-pmid11278880-7-0[7]cite-ref-pmid11087758-8-0[8] CD117cite-ref-pmid12036870-9-0[9] und CD29.cite-ref-pmid10229664-10-0[10]cite-ref-pmid12175627-11-0[11] Außerdem bindet es an IGSF8,cite-ref-pmid11673522-12-0[12] CD316 und CD36 und bildet einen grâßeren Proteinkomplex mit CD19, CD21 und Leu-13 an der ZelloberflÀche von B-Zellen.cite-ref-cd81-13-0[13]

CD81 ist ein Rezeptor fΓΌr das Hepatitis-C-Viruscite-ref-14[14] und Plasmodiencite-ref-15[15]cite-ref-16[16] und verstΓ€rkt eine Infektion mit Listerien.cite-ref-vences-1-2[1] Vermutlich ist CD81 der zellulΓ€re Rezeptor fΓΌr das HCMV.cite-ref-17[17]

CD81 ist an der Regulierung des Zellwachstums von Lymphomen beteiligt und dient als Target bei der Behandlung von Tumoren.cite-ref-vences-1-3[1]

Weiterhin bindet CD81 Benzylsalicylatcite-ref-pmid22740401-18-0[18] und Terfenadin.cite-ref-pmid18560330-19-0[19]

Weblinks

β€’ MeSH CD81

Einzelnachweise

cite-note-vences-11. ↑ F. Vences-CatalΓ‘n, C. Duault, C. C. Kuo, R. Rajapaksa, R. Levy, S. Levy: CD81 as a tumor target. In: Biochemical Society transactions. Band 45, Nummer 2, April 2017, S. 531–535, doi:10.1042/BST20160478, PMID 28408492.
cite-note-pmid9360996-22. ↑ Tachibana I, Bodorova J, Berditchevski F, Zutter MM, Hemler ME: NAG-2, a novel transmembrane-4 superfamily (TM4SF) protein that complexes with integrins and other TM4SF proteins. In: J. Biol. Chem. 272. Jahrgang, Nr. 46, November 1997, S. 29181–9, doi:10.1074/jbc.272.46.29181, PMID 9360996.
cite-note-pmid1383329-33. ↑ Bradbury LE, Kansas GS, Levy S, Evans RL, Tedder TF: The CD19/CD21 signal transducing complex of human B lymphocytes includes the target of antiproliferative antibody-1 and Leu-13 molecules. In: J. Immunol. 149. Jahrgang, Nr. 9, November 1992, S. 2841–50, PMID 1383329.
cite-note-pmid7636191-44. ↑ Imai T, Kakizaki M, Nishimura M, Yoshie O: Molecular analyses of the association of CD4 with two members of the transmembrane 4 superfamily, CD81 and CD82. In: J. Immunol. 155. Jahrgang, Nr. 3, August 1995, S. 1229–39, PMID 7636191.
cite-note-pmid9804823-55. ↑ HorvΓ‘th G, Serru V, Clay D, Billard M, Boucheix C, Rubinstein E: CD19 is linked to the integrin-associated tetraspans CD9, CD81, and CD82. In: J. Biol. Chem. 273. Jahrgang, Nr. 46, November 1998, S. 30537–43, doi:10.1074/jbc.273.46.30537, PMID 9804823.
cite-note-pmid8630057-66. ↑ Radford KJ, Thorne RF, Hersey P: CD63 associates with transmembrane 4 superfamily members, CD9 and CD81, and with beta 1 integrins in human melanoma. In: Biochem. Biophys. Res. Commun. 222. Jahrgang, Nr. 1, Mai 1996, S. 13–8, doi:10.1006/bbrc.1996.0690, PMID 8630057.
cite-note-pmid11278880-77. ↑ Charrin S, Le Naour F, Oualid M, Billard M, Faure G, Hanash SM, Boucheix C, Rubinstein E: The major CD9 and CD81 molecular partner. Identification and characterization of the complexes. In: J. Biol. Chem. 276. Jahrgang, Nr. 17, April 2001, S. 14329–37, doi:10.1074/jbc.M011297200, PMID 11278880.
cite-note-pmid11087758-88. ↑ Stipp CS, Orlicky D, Hemler ME: FPRP, a major, highly stoichiometric, highly specific CD81- and CD9-associated protein. In: J. Biol. Chem. 276. Jahrgang, Nr. 7, Februar 2001, S. 4853–62, doi:10.1074/jbc.M009859200, PMID 11087758.
cite-note-pmid12036870-99. ↑ N. Anzai, Y. Lee, B. S. Youn, S. Fukuda, Y. J. Kim, C. Mantel, M. Akashi, H. E. Broxmeyer: C-kit associated with the transmembrane 4 superfamily proteins constitutes a functionally distinct subunit in human hematopoietic progenitors. In: Blood. Band 99, Nummer 12, Juni 2002, S. 4413–4421, PMID 12036870.
cite-note-pmid10229664-1010. ↑ Serru V, Le Naour F, Billard M, Azorsa DO, Lanza F, Boucheix C, Rubinstein E: Selective tetraspan-integrin complexes (CD81/alpha4beta1, CD151/alpha3beta1, CD151/alpha6beta1) under conditions disrupting tetraspan interactions. In: Biochem. J. 340. Jahrgang, Pt 1, Mai 1999, S. 103–11, doi:10.1042/0264-6021:3400103, PMID 10229664, PMC 1220227 (freier Volltext).
cite-note-pmid12175627-1111. ↑ A. Mazzocca, V. Carloni, S. Sciammetta, C. Cordella, P. Pantaleo, A. Caldini, P. Gentilini, M. Pinzani: Expression of transmembrane 4 superfamily (TM4SF) proteins and their role in hepatic stellate cell motility and wound healing migration. In: Journal of hepatology. Band 37, Nummer 3, September 2002, S. 322–330, PMID 12175627.
cite-note-pmid11673522-1212. ↑ K. L. Clark, Z. Zeng, A. L. Langford, S. M. Bowen, S. C. Todd: PGRL is a major CD81-associated protein on lymphocytes and distinguishes a new family of cell surface proteins. In: Journal of Immunology. Band 167, Nummer 9, November 2001, S. 5115–5121, PMID 11673522.
cite-note-cd81-1313. ↑ Levy S, Todd SC, Maecker HT: CD81 (TAPA-1): a molecule involved in signal transduction and cell adhesion in the immune system. In: Annu Rev Immunol. 16. Jahrgang, 1998, S. 89–109, doi:10.1146/annurev.immunol.16.1.89, PMID 9597125.
cite-note-1414. ↑ B. Bartosch, A. Vitelli, C. Granier, C. Goujon, J. Dubuisson, S. Pascale, E. Scarselli, R. Cortese, A. Nicosia, F. L. Cosset: Cell entry of hepatitis C virus requires a set of co-receptors that include the CD81 tetraspanin and the SR-B1 scavenger receptor. In: The Journal of biological chemistry. Band 278, Nummer 43, Oktober 2003, S. 41624–41630, doi:10.1074/jbc.M305289200, PMID 12913001.
cite-note-1515. ↑ S. Yalaoui, S. ZougbΓ©dΓ©, S. Charrin, O. Silvie, C. Arduise, K. Farhati, C. Boucheix, D. Mazier, E. Rubinstein, P. Froissard: Hepatocyte permissiveness to Plasmodium infection is conveyed by a short and structurally conserved region of the CD81 large extracellular domain. In: PLoS pathogens. Band 4, Nummer 2, Februar 2008, S. e1000010, doi:10.1371/journal.ppat.1000010, PMID 18389082, PMC 2279262 (freier Volltext).
cite-note-1616. ↑ O. Silvie, E. Rubinstein, J. F. Franetich, M. Prenant, E. Belnoue, L. RΓ©nia, L. Hannoun, W. Eling, S. Levy, C. Boucheix, D. Mazier: Hepatocyte CD81 is required for Plasmodium falciparum and Plasmodium yoelii sporozoite infectivity. In: Nature medicine. Band 9, Nummer 1, Januar 2003, S. 93–96, doi:10.1038/nm808, PMID 12483205.
cite-note-1717. ↑ L. A. Fast, D. Lieber, T. Lang, L. Florin: Tetraspanins in infections by human cytomegalo- and papillomaviruses. In: Biochemical Society transactions. Band 45, Nummer 2, April 2017, S. 489–497, doi:10.1042/BST20160295, PMID 28408489.
cite-note-pmid22740401-1818. ↑ Rajesh S, Sridhar P, Tews BA, FΓ©nΓ©ant L, Cocquerel L, Ward DG, Berditchevski F, Overduin M: Structural basis of ligand interactions of the large extracellular domain of tetraspanin CD81. In: J Virol. 86. Jahrgang, Nr. 18, Juni 2012, S. 9606–16, doi:10.1128/JVI.00559-12, PMID 22740401, PMC 3446547 (freier Volltext).
cite-note-pmid18560330-1919. ↑ Holzer M, Ziegler S, Albrecht B, Kronenberger B, Kaul A, Bartenschlager R, Kattner L, Klein CD, Hartmann RW: Identification of terfenadine as an inhibitor of human CD81-receptor HCV-E2 interaction: synthesis and structure optimization. In: Molecules. 13. Jahrgang, Nr. 5, 2008, S. 1081–110, doi:10.3390/molecules13051081, PMID 18560330.