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Space-filling model of the PTEN protein (blue) complexed with tartaric acid (brown) [5] Phosphatase and tensin homolog (PTEN) is a phosphatase in humans and is encoded by the PTEN gene. [6] Mutations of this gene are a step in the development of many cancers, specifically glioblastoma, lung cancer, breast cancer, and prostate cancer.
PTEN also refers to a member of the class, phosphatase and tensin homolog. [ citation needed ] This enzyme participates in 10 metabolic pathways : inositol phosphate metabolism , phosphatidylinositol signaling system , p53 signaling pathway , focal adhesion , tight junction , endometrial cancer , glioma , prostate cancer , melanoma , and small ...
PtdIns(3,4,5)P 3 is dephosphorylated by the phosphatase PTEN on the 3 position, generating PI(4,5)P 2, and by SHIPs (SH2-containing inositol phosphatase) on the 5' position of the inositol ring, producing PI(3,4)P 2. [5] The PH domain in a number of proteins binds to PtdIns(3,4,5)P 3. Such proteins include Akt/PKB, [6] PDPK1, [7] Btk1, and ARNO ...
[14] [page needed] Germline mutations in PTEN (phosphatase and tensin homolog), a tumor suppressor gene, are found in up to 80% of Cowden's patients. [10] Several other hereditary cancer syndromes, such as Bannayan–Riley–Ruvalcaba syndrome, have been associated with mutations in the PTEN gene as well.
In triple-negative breast cancer (TNBC), oncogenic activation of the PI3K/AKT/mTOR pathway can happen as a function of overexpression of upstream regulators like EGFR, activating mutations of PIK3CA, loss of function or expression of phosphatase and tensin homolog (PTEN), and the proline-rich inositol polyphosphatase, which are downregulators ...
RhoA-GTP stimulates the phospholipid phosphatase activity of PTEN (phosphatase and tensin homologue), a human tumor suppressor protein. This stimulation seems to depend on ROCK. [8] [9] In this way, PTEN is important to prevent uncontrolled cell division as is exhibited in cancer cells.
n/a Ensembl ENSG00000274391 n/a UniProt P56180 n/a RefSeq (mRNA) NM_199261 NM_001290224 NM_199259 NM_199260 n/a RefSeq (protein) NP_001277153 NP_954868 NP_954869 NP_954870 n/a Location (UCSC) Chr 21: 10.52 – 10.61 Mb n/a PubMed search n/a Wikidata View/Edit Human Putative tyrosine-protein phosphatase TPTE is an enzyme that in humans is encoded by the TPTE gene. Function TPTE is a member of a ...
PTEN chromosomal location is 10q23.31, while the molecular location is 87,863,438 to 87,971,930 [2] [7] There are many syndromes that are linked to PTEN aside from Bannayan–Riley–Ruvalcaba Syndrome. [8] The syndrome combines Bannayan–Zonana syndrome, Riley–Smith syndrome, and Ruvalcaba–Myhre–Smith syndrome. [9]
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