TSC1

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Template:Short description An Error has occurred retrieving Wikidata item for infobox Tuberous sclerosis 1 (TSC1), also known as hamartin, is a protein that in humans is encoded by the TSC1 gene.[1]

Function

TSC1 functions as a co-chaperone which inhibits the ATPase activity of the chaperone Hsp90 (heat shock protein-90) and decelerates its chaperone cycle. TSC1 functions as a facilitator of Hsp90 in chaperoning the kinase and non-kinase clients including TSC2, therefore preventing their ubiquitination and degradation in the proteasome.[2] TSC1, TSC2 and TBC1D7 is a multi-protein complex also known as the TSC complex. This complex negatively regulates mTORC1 signaling by functioning as a GTPase-activating protein (GAP) for the small GTPase Rheb, an essential activator of mTORC1. The TSC complex has been implicated as a tumor suppressor.

Clinical significance

Defects in this gene can cause tuberous sclerosis, due to a functional impairment of the TSC complex.[citation needed] Defects in TSC1 may also be a cause of focal cortical dysplasia.[citation needed] TSC1 may be involved in protecting brain neurons in the CA3 region of the hippocampus from the effects of stroke.[3]

Interactions

TSC1 has been shown to interact with:

See also

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."Entrez Gene: TSC1 tuberous sclerosis 1".
  2. ^ a b c Page Module:Citation/CS1/styles.css has no content.Woodford MR, Sager RA, Marris E, Dunn DM, Blanden AR, Murphy RL, Rensing N, Shapiro O, Panaretou B, Prodromou C, Loh SN, Gutmann DH, Bourboulia D, Bratslavsky G, Wong M, Mollapour M (December 2017). "Tumor suppressor Tsc1 is a new Hsp90 co-chaperone that facilitates folding of kinase and non-kinase clients". The EMBO Journal. 36 (24): 3650–3665. doi:10.15252/embj.201796700. PMC 5730846. PMID 29127155.
  3. ^ Page Module:Citation/CS1/styles.css has no content.Papadakis M, Hadley G, Xilouri M, Hoyte LC, Nagel S, McMenamin MM, Tsaknakis G, Watt SM, Drakesmith CW, Chen R, Wood MJ, Zhao Z, Kessler B, Vekrellis K, Buchan AM (March 2013). "Tsc1 (hamartin) confers neuroprotection against ischemia by inducing autophagy". Nature Medicine. 19 (3): 351–7. doi:10.1038/nm.3097. PMC 3744134. PMID 23435171.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Roux PP, Ballif BA, Anjum R, Gygi SP, Blenis J (September 2004). "Tumor-promoting phorbol esters and activated Ras inactivate the tuberous sclerosis tumor suppressor complex via p90 ribosomal S6 kinase". Proceedings of the National Academy of Sciences of the United States of America. 101 (37): 13489–94. Bibcode:2004PNAS..10113489R. doi:10.1073/pnas.0405659101. PMC 518784. PMID 15342917.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Haddad LA, Smith N, Bowser M, Niida Y, Murthy V, Gonzalez-Agosti C, Ramesh V (November 2002). "The TSC1 tumor suppressor hamartin interacts with neurofilament-L and possibly functions as a novel integrator of the neuronal cytoskeleton". The Journal of Biological Chemistry. 277 (46): 44180–6. doi:10.1074/jbc.M207211200. PMID 12226091.
  6. ^ a b Page Module:Citation/CS1/styles.css has no content.Astrinidis A, Senapedis W, Henske EP (January 2006). "Hamartin, the tuberous sclerosis complex 1 gene product, interacts with polo-like kinase 1 in a phosphorylation-dependent manner". Human Molecular Genetics. 15 (2): 287–97. doi:10.1093/hmg/ddi444. PMID 16339216.
  7. ^ Page Module:Citation/CS1/styles.css has no content.Hodges AK, Li S, Maynard J, Parry L, Braverman R, Cheadle JP, DeClue JE, Sampson JR (December 2001). "Pathological mutations in TSC1 and TSC2 disrupt the interaction between hamartin and tuberin". Human Molecular Genetics. 10 (25): 2899–905. doi:10.1093/hmg/10.25.2899. PMID 11741833.
  8. ^ Page Module:Citation/CS1/styles.css has no content.Aicher LD, Campbell JS, Yeung RS (June 2001). "Tuberin phosphorylation regulates its interaction with hamartin. Two proteins involved in tuberous sclerosis". The Journal of Biological Chemistry. 276 (24): 21017–21. doi:10.1074/jbc.C100136200. PMID 11290735.
  9. ^ Page Module:Citation/CS1/styles.css has no content.van Slegtenhorst M, Nellist M, Nagelkerken B, Cheadle J, Snell R, van den Ouweland A, Reuser A, Sampson J, Halley D, van der Sluijs P (June 1998). "Interaction between hamartin and tuberin, the TSC1 and TSC2 gene products". Human Molecular Genetics. 7 (6): 1053–7. doi:10.1093/hmg/7.6.1053. hdl:1765/8818. PMID 9580671.
  10. ^ Page Module:Citation/CS1/styles.css has no content.Nellist M, Goedbloed MA, de Winter C, Verhaaf B, Jankie A, Reuser AJ, van den Ouweland AM, van der Sluijs P, Halley DJ (October 2002). "Identification and characterization of the interaction between tuberin and 14-3-3zeta". The Journal of Biological Chemistry. 277 (42): 39417–24. doi:10.1074/jbc.M204802200. PMID 12176984.
  11. ^ Page Module:Citation/CS1/styles.css has no content.Li Y, Inoki K, Guan KL (September 2004). "Biochemical and functional characterizations of small GTPase Rheb and TSC2 GAP activity". Molecular and Cellular Biology. 24 (18): 7965–75. doi:10.1128/MCB.24.18.7965-7975.2004. PMC 515062. PMID 15340059.
  12. ^ Page Module:Citation/CS1/styles.css has no content.Mak BC, Takemaru K, Kenerson HL, Moon RT, Yeung RS (February 2003). "The tuberin-hamartin complex negatively regulates beta-catenin signaling activity". The Journal of Biological Chemistry. 278 (8): 5947–51. doi:10.1074/jbc.C200473200. PMID 12511557.
  13. ^ Page Module:Citation/CS1/styles.css has no content.Ma L, Chen Z, Erdjument-Bromage H, Tempst P, Pandolfi PP (April 2005). "Phosphorylation and functional inactivation of TSC2 by Erk implications for tuberous sclerosis and cancer pathogenesis". Cell. 121 (2): 179–93. doi:10.1016/j.cell.2005.02.031. PMID 15851026. S2CID 18663447.
  14. ^ Page Module:Citation/CS1/styles.css has no content.Cai SL, Tee AR, Short JD, Bergeron JM, Kim J, Shen J, Guo R, Johnson CL, Kiguchi K, Walker CL (April 2006). "Activity of TSC2 is inhibited by AKT-mediated phosphorylation and membrane partitioning". The Journal of Cell Biology. 173 (2): 279–89. doi:10.1083/jcb.200507119. PMC 2063818. PMID 16636147.
  15. ^ Page Module:Citation/CS1/styles.css has no content.Cao Y, Kamioka Y, Yokoi N, Kobayashi T, Hino O, Onodera M, Mochizuki N, Nakae J (December 2006). "Interaction of FoxO1 and TSC2 induces insulin resistance through activation of the mammalian target of rapamycin/p70 S6K pathway". The Journal of Biological Chemistry. 281 (52): 40242–51. doi:10.1074/jbc.M608116200. PMID 17077083.
  16. ^ Page Module:Citation/CS1/styles.css has no content.Inoki K, Zhu T, Guan KL (November 2003). "TSC2 mediates cellular energy response to control cell growth and survival". Cell. 115 (5): 577–90. doi:10.1016/S0092-8674(03)00929-2. PMID 14651849. S2CID 18173817.
  17. ^ Page Module:Citation/CS1/styles.css has no content.Nellist M, Burgers PC, van den Ouweland AM, Halley DJ, Luider TM (August 2005). "Phosphorylation and binding partner analysis of the TSC1-TSC2 complex". Biochemical and Biophysical Research Communications. 333 (3): 818–26. doi:10.1016/j.bbrc.2005.05.175. PMID 15963462.
  18. ^ Page Module:Citation/CS1/styles.css has no content.Goncharova EA, Goncharov DA, Spaits M, Noonan DJ, Talovskaya E, Eszterhas A, Krymskaya VP (May 2006). "Abnormal growth of smooth muscle-like cells in lymphangioleiomyomatosis: Role for tumor suppressor TSC2". American Journal of Respiratory Cell and Molecular Biology. 34 (5): 561–72. doi:10.1165/rcmb.2005-0300OC. PMC 2644221. PMID 16424383.
  19. ^ Page Module:Citation/CS1/styles.css has no content.Astrinidis A, Senapedis W, Coleman TR, Henske EP (December 2003). "Cell cycle-regulated phosphorylation of hamartin, the product of the tuberous sclerosis complex 1 gene, by cyclin-dependent kinase 1/cyclin B". The Journal of Biological Chemistry. 278 (51): 51372–9. doi:10.1074/jbc.M303956200. PMID 14551205.
  20. ^ Page Module:Citation/CS1/styles.css has no content.Nellist M, Verhaaf B, Goedbloed MA, Reuser AJ, van den Ouweland AM, Halley DJ (December 2001). "TSC2 missense mutations inhibit tuberin phosphorylation and prevent formation of the tuberin-hamartin complex". Human Molecular Genetics. 10 (25): 2889–98. doi:10.1093/hmg/10.25.2889. hdl:1765/9803. PMID 11741832.
  21. ^ Page Module:Citation/CS1/styles.css has no content.Benvenuto G, Li S, Brown SJ, Braverman R, Vass WC, Cheadle JP, Halley DJ, Sampson JR, Wienecke R, DeClue JE (December 2000). "The tuberous sclerosis-1 (TSC1) gene product hamartin suppresses cell growth and augments the expression of the TSC2 product tuberin by inhibiting its ubiquitination". Oncogene. 19 (54): 6306–16. doi:10.1038/sj.onc.1204009. PMID 11175345.
  22. ^ Page Module:Citation/CS1/styles.css has no content.Murthy V, Haddad LA, Smith N, Pinney D, Tyszkowski R, Brown D, Ramesh V (May 2000). "Similarities and differences in the subcellular localization of hamartin and tuberin in the kidney". American Journal of Physiology. Renal Physiology. 278 (5): F737–46. doi:10.1152/ajprenal.2000.278.5.F737. PMID 10807585. S2CID 13321027.
  23. ^ Page Module:Citation/CS1/styles.css has no content.Miloloza A, Rosner M, Nellist M, Halley D, Bernaschek G, Hengstschläger M (July 2000). "The TSC1 gene product, hamartin, negatively regulates cell proliferation". Human Molecular Genetics. 9 (12): 1721–7. doi:10.1093/hmg/9.12.1721. PMID 10915759.

Further reading

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