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PTEN
Multifunctional Tumor Suppressor
PTEN crystal structure contains a phosphatase and C2 domain
Lumb, C. N., & Sansom, M. S. (2013). Defining the Membrane-Associated State of the PTEN Tumor Suppressor
Protein. Biophysical Journal, 104(3), 613-621.
PTEN binds PIP3, a phospholipid substrate
Lumb, C. N., & Sansom, M. S. (2013). Defining the Membrane-Associated State of the PTEN Tumor Suppressor
Protein. Biophysical Journal, 104(3), 613-621.
PTEN opposes PI3 Kinase to keep PIP3 levels low
J. Clin Oncol. July 15, 2004 vol. 22 no. 14 2954-2963. DOI: 10.1200/JCO.2004.02.141
PTEN regulates the AKT pathway which has multiple biological roles
Backman, S., Stambolic, V., & Mak, T. (2002). PTEN function in mammalian cell size regulation. Current opinion in neurobiology, 12(5), 516.
Mice PTEN null ES cells grow excessively with disorganized patterning
Cristofano, A. D., Pesce, B., Cordon-Cardo, C., & Pandolfi, P. P. (1998). Pten is essential for embryonic development and tumour suppression. Nature
genetics, 19(4), 348-355.
Cancers with PTEN mutations occur in a dosage dependent manner
Cristofano, A. D., Pesce, B., Cordon-Cardo, C., & Pandolfi, P. P. (1998).
Pten is essential for embryonic development and tumour
suppression. Nature genetics, 19(4), 348-355.
http://www.nature.com/ng/journal/v42/n5/images_article/ng.556-F3.jpg
PTEN is one of the most frequently mutated genes in human cancers
Eng, C. (2003). PTEN: one gene, many syndromes. Human mutation, 22(3), 183-198.
Cowden Syndrome : hamartomas, benign tumors
due to germline mutations often in PTEN phosphatase catalytic site
http://www.hinsdale86.org/staff/kgabric/Disease10/Cowden%20Syndrome/Index1.htm
Cowden Syndrome patients display an increased predisposition for cancer
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