Regulation of autophagy by phosphatidylinositol 3‐phosphate [PDF]
FEBS Letters, 2010 The simple phosphoinositide phosphatidylinositol 3‐phosphate (PI(3)P) has been known to have important functions in endocytic and phagocytic traffic, and to be required for the autophagic pathway. In all of these settings, PI(3)P appears to create platforms that serve to recruit specific effectors for membrane trafficking events.
Burman, Chloe, Ktistakis, Nicholas T.
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Phosphatidylinositol (4,5)-bisphosphate turnover by INP51 regulates the cell wall integrity pathway in "Saccharomyces cerevisiae" [PDF]
, 2004 Signal transduction pathways are important for the cell to transduce external or internal stimuli where second messengers play an important role as mediators of the stimuli. One important group of second messengers are the phosphoinositide family present
Makhtar, Mokhairi +3 more
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PI3P-dependent regulation of cell size and autophagy by phosphatidylinositol 5-phosphate 4-kinase
Life Science Alliance, 2023 PIP4K is a lipid kinase implicated in tumour growth, immune function, and metabolic regulation. This study shows that PIP4K regulates PI3P levels and autophagy, thereby controlling cell size in Drosophila salivary glands. Phosphatidylinositol 3-phosphate
Avishek Ghosh +8 more
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Phosphatidylinositol 3-phosphate is generated in phagosomal membranes [PDF]
Current Biology, 2001 Phagocytic cells such as neutrophils and macrophages engulf and destroy invading microorganisms. After internalization, material captured within the phagosomal membrane is destroyed by a complex process of coordinated delivery of digestive enzymes and reactive oxygen species.
Ellson, C.D. +6 more
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Phosphatidylinositol 3-Phosphate Recognition by the FYVE Domain [PDF]
Molecular Cell, 1999 Recognition of phosphatidylinositol 3-phosphate (Ptdlns(3)P) is crucial for a broad range of cellular signaling and membrane trafficking events regulated by phosphoinositide (PI) 3-kinases. PtdIns(3)P binding by the FYVE domain of human early endosome autoantigen 1 (EEA1), a protein implicated in endosome fusion, involves two beta hairpins and an alpha
Kutateladze, Tatiana G +6 more
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Sbf/MTMR13 coordinates PI(3)P and Rab21 regulation in endocytic control of cellular remodeling. [PDF]
, 2012 Cells rely on the coordinated regulation of lipid phosphoinositides and Rab GTPases to define membrane compartment fates along distinct trafficking routes.
Cox, Sarah +4 more
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Stimulation of a glycosyl-phosphatidylinositol-specific phospholipase by insulin and the sulfonylurea, glimepiride, in rat adipocytes depends on increased glucose transport [PDF]
, 1994 . Lipoprotein lipase (LPL) and glycolipidanchored cAMP-binding ectoprotein (Gcel) are modified by glycosyl-phosphatidylinositol (GPI) in rat adipocytes, however, the linkage is potentially unstable. Incubation of the cells with either insulin (0.1-30 nM)
Bandlow, Wolfhard +3 more
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The recruitment and activation of phosphatidylinositol 4-phosphate 5-kinases α critically regulate CD28-dependent signaling responses [PDF]
, 2013 CD28 costimulatory receptor is a crucial determinant of the outcome of T lymphocyte activation. The engagement of CD28 by its natural ligands, B7.1/CD80 or B7.2/CD86, expressed on the surface of professional APC, lowers T cell receptor (TCR) activation ...
Camperio, Cristina +6 more
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Journal of Lipid Research, 2014 Mutations in the gene encoding comparative gene identification 58 (CGI-58)/α/β hydrolase domain 5 (ABHD5) cause Chanarin-Dorfman syndrome, characterized by excessive triacylglycerol storage in cells and tissues.
Derek McMahon +6 more
doaj +1 more source
Structural basis for VPS34 kinase activation by Rab1 and Rab5 on membranes
Nature Communications, 2021 The phosphatidylinositol-3-phosphate (PI3P) is generated by the lipid kinase VPS34, in the context of VPS34 complex I on autophagosomes or complex II on endosomes.
Shirley Tremel +15 more
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