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de Cicco, M.* ; Abd Rahim, M.S.* ; Dames, S.A.

Regulation of the target of rapamycin and other phosphatidylinositol 3-kinase-related kinases by membrane targeting.

Membranes 5, 553-575 (2015)
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Phosphatidylinositol 3-kinase-related kinases (PIKKs) play vital roles in the regulation of cell growth, proliferation, survival, and consequently metabolism, as well as in the cellular response to stresses such as ionizing radiation or redox changes. In humans six family members are known to date, namely mammalian/mechanistic target of rapamycin (mTOR), ataxia-telangiectasia mutated (ATM), ataxia- and Rad3-related (ATR), DNA-dependent protein kinase catalytic subunit (DNA-PKcs), suppressor of morphogenesis in genitalia-1 (SMG-1), and transformation/transcription domain-associated protein (TRRAP). All fulfill rather diverse functions and most of them have been detected in different cellular compartments including various cellular membranes. It has been suggested that the regulation of the localization of signaling proteins allows for generating a locally specific output. Moreover, spatial partitioning is expected to improve the reliability of biochemical signaling. Since these assumptions may also be true for the regulation of PIKK function, the current knowledge about the regulation of the localization of PIKKs at different cellular (membrane) compartments by a network of interactions is reviewed. Membrane targeting can involve direct lipid-/membrane interactions as well as interactions with membrane-anchored regulatory proteins, such as, for example, small GTPases, or a combination of both.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Review
Schlagwörter Atm ; Atr ; Dna-pkcs ; Membrane Targeting ; Mtor ; Phosphatidylinositol-3 Kinase-related Kinase ; Protein–membrane Interaction ; Signal Transduction ; Smg-1 ; Trrap
e-ISSN 2077-0375
Zeitschrift Membranes
Quellenangaben Band: 5, Heft: 4, Seiten: 553-575 Artikelnummer: , Supplement: ,
Verlag MDPI
Verlagsort Basel
Begutachtungsstatus Peer reviewed