The members of the IL-6 receptor family all complex with gp130 for signal transduction. For example, IL-6 binds to the IL-6 Receptor. The complex of these two proteins then associates with gp130. This complex of 3 proteins then homodimerizes to form a hexameric complex which can produce downstream signals.[7] There are many other proteins which associate with gp130, such as cardiotrophin 1 (CT-1), leukemia inhibitory factor (LIF), ciliary neurotrophic factor (CNTF), oncostatin M (OSM), and IL-11.[8] There are also several other proteins which have structural similarity to gp130 and contain the WSXWS motif and preserved cysteine residues. Members of this group include LIF-R, OSM-R, and G-CSF-R.
Loss of gp130
gp130 is an important part of many different types of signaling complexes. Inactivation of gp130 is lethal to mice.[9]Homozygous mice who are born show a number of defects including impaired development of the ventricularmyocardium. Haematopoietic effects included reduced numbers of stem cells in the spleen and liver.
^"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.
^Hibi M, Murakami M, Saito M, Hirano T, Taga T, Kishimoto T (1990). "Molecular cloning and expression of an IL-6 signal transducer, gp130". Cell. 63 (6): 1149–1157. doi:10.1016/0092-8674(90)90411-7. PMID2261637. S2CID30852638.
^Murakami M, Hibi M, Nakagawa N, Nakagawa T, Yasukawa K, Yamanishi K, Taga T, Kishimoto T (1993). "IL-6-induced homodimerization of gp130 and associated activation of a tyrosine kinase". Science. 260 (5115): 1808–1810. Bibcode:1993Sci...260.1808M. doi:10.1126/science.8511589. PMID8511589.
^Grant SL, Hammacher A, Douglas AM, Goss GA, Mansfield RK, Heath JK, Begley CG (January 2002). "An unexpected biochemical and functional interaction between gp130 and the EGF receptor family in breast cancer cells". Oncogene. 21 (3): 460–74. doi:10.1038/sj.onc.1205100. PMID11821958. S2CID19754641.
^Timmermann A, Küster A, Kurth I, Heinrich PC, Müller-Newen G (June 2002). "A functional role of the membrane-proximal extracellular domains of the signal transducer gp130 in heterodimerization with the leukemia inhibitory factor receptor". Eur. J. Biochem. 269 (11): 2716–26. doi:10.1046/j.1432-1033.2002.02941.x. PMID12047380.
^Liu F, Liu Y, Li D, Zhu Y, Ouyang W, Xie X, Jin B (March 2002). "The transcription co-repressor TLE1 interacted with the intracellular region of gpl30 through its Q domain". Mol. Cell. Biochem. 232 (1–2): 163–7. doi:10.1023/A:1014880813692. PMID12030375. S2CID8270300.
Further reading
Ip NY, Nye SH, Boulton TG, Davis S, Taga T, Li Y, Birren SJ, Yasukawa K, Kishimoto T, Anderson DJ (1992). "CNTF and LIF act on neuronal cells via shared signaling pathways that involve the IL-6 signal transducing receptor component gp130". Cell. 69 (7): 1121–32. doi:10.1016/0092-8674(92)90634-O. PMID1617725. S2CID45816061.
Hibi M, Murakami M, Saito M, Hirano T, Taga T, Kishimoto T (1991). "Molecular cloning and expression of an IL-6 signal transducer, gp130". Cell. 63 (6): 1149–57. doi:10.1016/0092-8674(90)90411-7. PMID2261637. S2CID30852638.
Taga T, Hibi M, Hirata Y, Yamasaki K, Yasukawa K, Matsuda T, Hirano T, Kishimoto T (1989). "Interleukin-6 triggers the association of its receptor with a possible signal transducer, gp130". Cell. 58 (3): 573–81. doi:10.1016/0092-8674(89)90438-8. PMID2788034. S2CID41245022.
Rodriguez C, Grosgeorge J, Nguyen VC, Gaudray P, Theillet C (1995). "Human gp130 transducer chain gene (IL6ST) is localized to chromosome band 5q11 and possesses a pseudogene on chromosome band 17p11". Cytogenet. Cell Genet. 70 (1–2): 64–7. doi:10.1159/000133993. PMID7736792.
Davis S, Aldrich TH, Stahl N, Pan L, Taga T, Kishimoto T, Ip NY, Yancopoulos GD (1993). "LIFR beta and gp130 as heterodimerizing signal transducers of the tripartite CNTF receptor". Science. 260 (5115): 1805–8. Bibcode:1993Sci...260.1805D. doi:10.1126/science.8390097. PMID8390097.
Murakami M, Hibi M, Nakagawa N, Nakagawa T, Yasukawa K, Yamanishi K, Taga T, Kishimoto T (1993). "IL-6-induced homodimerization of gp130 and associated activation of a tyrosine kinase". Science. 260 (5115): 1808–10. Bibcode:1993Sci...260.1808M. doi:10.1126/science.8511589. PMID8511589.