IndraLab

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PDPK1 phosphorylates AKT1 on S473. 18 / 18
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"In general, receptor- or non-receptor tyrosine kinases, PI3K, the 3-phosphoinositide-dependent protein kinase 1 (PDK1) and mTOR complex 2 (mTORC2) can activate Akt by promoting the phosphorylation of Akt1, Akt2 and Akt3 at residues T308/S473, T309/S474 and T305/S472, respectively [83]."

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"PDK1 directly phosphorylates Akt1 at T308, while mTORC2 not only directly phosphorylates Akt1 at S473, but also phosphorylates and activates insulin receptor (InsR)/insulin-like growth factor receptor (IGF-IR) through the tyrosine kinase activity of mTOR, thereby indirectly promoting Akt activation [83, 85]."

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"AC093818.1 could increase the expression level of PDK1, which can activate the AKT/mTOR pathway by phosphorylating AKT1 at S473."

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"Akt1 is phosphorylated by PDK1 at T308, and additionally at S473 by the Pl3K related kinases, mammalian target of rapamycin complex 2 (mTORC2) or DNA-PK to achieve its full kinase activity, depending on the stimulus and the cellular context."

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"It has been shown that PI3,4P2 and PI3,4,5P3, interacting with the PH domain of AKT-1/PKB, promote its translocation to the plasma membrane inducing conformational changes and, in parallel, activate P[MISSING/INVALID CREDENTIALS: limited to 200 char for Elsevier]"

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"We have partially purified a kinase from brain extract that phosphorylates Ser473 of PKBalpha in a PtdIns(3,4,5)P3-dependent manner and that is immunoprecipitated with PDK1 antibodies."

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