The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
The p38 and MK2 Kinase Cascade Phosphorylates Tuberin, the Tuberous Sclerosis 2 Gene Product, and Enhances Its Interaction with 14-3-3
Open accessAbstract
Tuberous sclerosis complex (TSC) is a genetic disease caused by mutations in either TSC1 or TSC2 tumor suppressor genes. TSC1 and TSC2 (also known as hamartin and tuberin, respectively) form a functional complex and negatively regulate cell growth by inhibiting protein synthesis. 14-3-3 binds to TSC2 and may inhibit TSC2 function. We have reported previously that phosphorylation of serine 1210 (Ser(1210)) in TSC2 is essential for 14-3-3 binding. Here we show that serum and anisomycin enhance the interaction between TSC2 and 14-3-3 by stimulating phosphorylation of Ser(1210). Activation of p38 MAP kinase (p38) is essential for the stimulating effect of serum and anisomycin although p38 is not directly responsible for the phosphorylation of Ser(1210) in TSC2. Both in vitro and in vivo experiments demonstrate that the p38-activated kinase MK2 (also known as MAPKAPK2) is directly responsible for the phosphorylation of Ser(1210). Our data show that anisomycin stimulates phosphorylation of Ser(1210) of TSC2 via the p38-MK2 kinase cascade. Phosphorylation of TSC2 by MK2 creates a 14-3-3 binding site and thus regulates the cellular function of the TSC2 tumor suppressor protein.
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Citations
Cites
TSC2 is phosphorylated and inhibited by Akt and suppresses mTOR signalling
Inoki, K., Li, Y., Zhu, T., Wu, J., & Guan, K.-L. (2002) · Nature Cell Biology · doi:10.1038/ncb839 · Cited by 3,083
Self-citationTee, A. R., Fingar, D. C., Manning, B. D., Kwiatkowski, D. J., Cantley, L. C., & Blenis, J. (2002) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.202476899 · Cited by 827
Shumway, S. D., Li, Y., & Xiong, Y. (2003) · Journal of Biological Chemistry · doi:10.1074/jbc.c200499200 · Cited by 74
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Cited by
Activation and function of the MAPKs and their substrates, the MAPK-activated protein kinases
Cargnello, M., & Roux, P. P. (2011) · Microbiology and Molecular Biology Reviews · doi:10.1128/mmbr.00031-10 · Cited by 3,274
The Tuberous Sclerosis Complex
Crino, P. B., Nathanson, K. L., & Henske, E. P. (2006) · New England Journal of Medicine · doi:10.1056/nejmra055323 · Cited by 1,793
Regulation of the mTOR Complex 1 Pathway by Nutrients, Growth Factors, and Stress
Sengupta, S., Peterson, T. R., & Sabatini, D. M. (2010) · Molecular Cell · doi:10.1016/j.molcel.2010.09.026 · Cited by 1,241
The TSC1–TSC2 complex: a molecular switchboard controlling cell growth
Huang, J., & Manning, B. D. (2008) · Biochemical Journal · doi:10.1042/bj20080281 · Cited by 1,237
Bhaskar, P. T., & Hay, N. (2007) · Developmental Cell · doi:10.1016/j.devcel.2007.03.020 · Cited by 798
Metadata
- Authors
- Li, Y., Inoki, K., Vacratsis, P., & Guan, K.-L.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2003-04
- Volume
- 278
- Issue
- 16
- Pages
- 13663-13671
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W2061216192
- Cited by
- 163
- References
- 3
- FWCI
- 8.32
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Li, Y., Inoki, K., Vacratsis, P., & Guan, K.-L. (2003). The p38 and MK2 Kinase Cascade Phosphorylates Tuberin, the Tuberous Sclerosis 2 Gene Product, and Enhances Its Interaction with 14-3-3. Journal of Biological Chemistry. https://doi.org/10.1074/jbc.m300862200
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