Results 21 to 30 of about 38,654,738 (261)

Phosphatidylinositol‐3,4,5‐trisphosphate: Tool of choice for class I PI 3‐kinases [PDF]

BioEssays, 2013
Class I PI 3‐kinases signal by producing the signaling lipid phosphatidylinositol(3,4,5) trisphosphate, which in turn acts by recruiting downstream effectors that contain specific lipid‐binding domains. The class I PI 3‐kinases comprise four distinct catalytic subunits linked to one of seven different regulatory subunits.
Rachel Schnur, Salamon, Jonathan M, Backer   +1 more
openaire   +2 more sources

Class I and III Phosphatidylinositol 3′-Kinase Play Distinct Roles in TLR Signaling Pathway [PDF]

The Journal of Immunology, 2006
Abstract PI3K involvement has been implicated in the TLR signal pathway. However, the precise roles of the different classes of PI3K in the pathway remain elusive. In this study, we have explored the functions of class I and class III PI3K in the TLR signal pathway using specific kinase mutants and PI3K lipid products.
Cheng-Chin, Kuo, Wen-Ting, Lin, Chi-Ming, Liang, Shu-Mei, Liang   +3 more
openaire   +2 more sources

Role of class III phosphatidylinositol 3-kinase during programmed nuclear death of Tetrahymena thermophila [PDF]

Autophagy, 2013
Programmed nuclear death (PND) in the ciliate protozoan Tetrahymena thermophila is a novel type of autophagy that occurs during conjugation, in which only the parental somatic macronucleus is destined to die and is then eliminated from the progeny cytoplasm. Other coexisting nuclei, however, such as new micro- and macronuclei are unaffected. PND starts
Akematsu, Takahiko, Fukuda, Yasuhiro, Attiq, Rizwan, Pearlman, Ronald E   +3 more
openaire   +2 more sources

Insulin-stimulated degradation of apolipoprotein B100: roles of class II phosphatidylinositol-3-kinase and autophagy. [PDF]

PLoS ONE, 2013
Both in humans and animal models, an acute increase in plasma insulin levels, typically following meals, leads to transient depression of hepatic secretion of very low density lipoproteins (VLDL).
Ursula Andreo, Liang Guo, Doru V Chirieac, Ana C Tuyama, Emilie Montenont, Jeffrey L Brodsky, Edward A Fisher   +6 more
doaj   +1 more source

Class IA phosphatidylinositol 3-kinase p110α regulates phagosome maturation. [PDF]

PLoS ONE, 2012
Of the various phosphatidylinositol 3- kinases (PI3Ks), only the class III enzyme Vps34 has been shown to regulate phagosome maturation. During studies of phagosome maturation in THP-1 cells deficient in class IA PI3K p110α, we discovered that this PI3K ...
Emily P Thi, Ulrike Lambertz, Neil E Reiner   +2 more
doaj   +1 more source

Phosphatidylinositol Kinases and Phosphatases in Entamoeba histolytica

Frontiers in Cellular and Infection Microbiology, 2019
Phosphatidylinositol (PtdIns) metabolism is indispensable in eukaryotes. Phosphoinositides (PIs) are phosphorylated derivatives of PtdIns and consist of seven species generated by reversible phosphorylation of the inositol moieties at the positions 3, 4,
Kumiko Nakada-Tsukui, Natsuki Watanabe, Natsuki Watanabe, Tomohiko Maehama, Tomoyoshi Nozaki   +4 more
doaj   +1 more source

Characterization of VPS34-IN1, a selective inhibitor of Vps34, reveals that the phosphatidylinositol 3-phosphate-binding SGK3 protein kinase is a downstream target of class III phosphoinositide 3-kinase [PDF]

, 2014
The Vps34 (vacuolar protein sorting 34) class III PI3K (phosphoinositide 3-kinase) phosphorylates PtdIns (phosphatidylinositol) at endosomal membranes to generate PtdIns(3)P that regulates membrane trafficking processes via its ability to recruit a ...
Ward, Richard, Davies, Paul; id_orcid, Bago, Ruzica, Shpiro, Natalia, Cross, Darren, Sommer, Eeva, Malik, Nazma, Ganley, Ian G.; id_orcid, Munson, Michael J., Alessi, Dario R.; id_orcid, Prescott, Alan R.; id_orcid   +10 more
core   +1 more source

Phosphatidylinositol 3-monophosphate is involved in Toxoplasma apicoplast biogenesis [PDF]

, 2011
Apicomplexan parasites cause devastating diseases including malaria and toxoplasmosis. They harbour a plastid-like, non-photosynthetic organelle of algal origin, the apicoplast, which fulfils critical functions for parasite survival.
Henri J Vial, Dubremetz, J.-F., Payrastre, B., Merezegue, F., Montcourrier, Philippe, Merezegue, Fabrice, Jean-François Dubremetz, Tawk, Lina, Payrastre Bernard, Chicanne Gaëtan, Payrastre, Bernard, Roy Christian, Philippe Montcourrier, Lebrun Maryse, Vial, H.J., Vial Henri J., Véronique Richard, Henri J. Vial, Roy, C., Dubremetz Jean-François, Markus Meissner, Lebrun, M., Chicanne, G., Kai Wengelnik, Wengelnik Kai, Christian Roy, Wengelnik, Kai, Lina Tawk, Chicanne, Gaëtan, Montcourrier Philippe, Lebrun, Maryse, Bernard Payrastre, Vial, Henri, Roy, Christian, Fabrice Merezegue, Richard, V., Meissner, M., Meissner Markus, Richard Véronique, Tawk, L., Meissner, Markus, Gaëtan Chicanne, Maryse Lebrun, Tawk Lina, Merezegue Fabrice, Dubremetz, Jean-François, Wengelnik, K., Montcourrier, P., Richard, Véronique   +48 more
core   +2 more sources

Phosphoinositide 3-kinase: friend and foe in cardiovascular disease

Frontiers in Pharmacology, 2015
Class I phosphoinositide 3-kinases (PI3Ks) are a family of lipid kinases activated by cell membrane receptors, either receptor tyrosine kinases (RTKs) or G protein-coupled receptors (GPCRs), to catalyze the production of the lipid second messenger ...
Alessandra eGhigo, Mingchuan eLi
doaj   +1 more source

Class II Phosphoinositide 3-Kinases Contribute to Endothelial Cells Morphogenesis [PDF]

, 2013
PMCID: PMC3539993This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
I. Mavrommati, Piñeiro R, Chiozzotto, D, Tania Maffucci, G. Tibolla, Pineiro, R, Wheeler Ann P., Giuseppe Danilo Norata (104795), Wheeler, A., Ioanna Mavrommati, Maffucci Tania, Norata, G., Chiozzotto Daniela, Ioanna Mavrommati (104788), Tibolla Gianpaolo, Mavrommati, I, Maffucci, T, D. Chiozzotto, Falasca, M, Mavrommati Ioanna, Alberico Luigi Catapano, Roberto Piñeiro (104782), Mavrommati, I., Daniela Chiozzotto, Ann P Wheeler, R. Piñeiro, Gianpaolo Tibolla (104779), Norata GD, G.D. Norata, Norata Giuseppe Danilo, M. Falasca, Giuseppe Danilo Norata, Daniela Chiozzotto (104784), T. Maffucci, Catapano AL, Ann P. Wheeler (104791), Falasca Marco, Piñeiro Roberto, A.L. Catapano, Marco Falasca (104805), Chiozzotto D, Alberico Luigi Catapano (104799), Falasca, Marco, Wheeler AP, Falasca M, Maffucci T, Catapano, A., Mavrommati I, Norata, GD, Tibolla G, Piñeiro, R., Chiozzotto, D., Marco Falasca, Maffucci, T., Tibolla, G., Tibolla, G, Wheeler, AP, Roberto Piñeiro, Catapano Alberico Luigi, A. P. Wheeler, Gianpaolo Tibolla, Catapano, AL, Tania Maffucci (104802)   +62 more
core   +1 more source