Structural organization and dynamics of FCHo2 docking on membranes
Clathrin-mediated endocytosis (CME) is a central trafficking pathway in eukaryotic cells regulated by phosphoinositides. The plasma membrane phosphatidylinositol-4,5-bisphosphate (PI(4,5)P2) plays an instrumental role in driving CME initiation. The F-BAR
Fatima El Alaoui +11 more
doaj +1 more source
Grb2 depletion under non-stimulated conditions inhibits PTEN, promotes Akt-induced tumor formation and contributes to poor prognosis in ovarian cancer [PDF]
In the absence of extracellular stimulation the adaptor protein growth factor receptor-bound protein (Grb2) and the phospholipase Plcγ1 compete for the same binding site on fibroblast growth factor receptor 2 (FGFR2).
A B Gladden +64 more
core +1 more source
The coincidence biosensor tubbyCT reveals local phosphatidylinositol-4,5-bisphosphate synthesis at endoplasmic reticulum-plasma membrane junctions [PDF]
Phosphatidylinositol-4,5-bisphosphate (PI(4,5)P2) plays a prominent role in plasma membrane (PM) physiology. It is implicated in the regulation of a variety of cellular functions including exo- and endocytosis, cytoskeleton anchorage, and ion channel ...
Thallmair, Veronika
core +1 more source
LPS-induced clustering of CD14 triggers generation of PI(4,5)P2 [PDF]
Bacterial lipopolysaccharide (LPS) induces strong pro-inflammatory reactions after sequential binding to CD14 protein and TLR4 receptor. Here we show that CD14 controls generation of phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2] in response to LPS binding. In J774 cells and HEK293 cells expressing CD14 exposed to 10-100 ng/ml LPS, the level of PI(4,
Agnieszka, Płóciennikowska +4 more
openaire +2 more sources
Synchronized HIV assembly by tunable PIP2 changes reveals PIP2 requirement for stable Gag anchoring
HIV-1 assembles at the plasma membrane (PM) of infected cells. PM association of the main structural protein Gag depends on its myristoylated MA domain and PM PI(4,5)P2. Using a novel chemical biology tool that allows rapidly tunable manipulation of PI(4,
Frauke Mücksch +4 more
doaj +1 more source
Gradients of PI(4,5)P2 and PI(3,5)P2 Jointly Participate in Shaping the Back State of Dictyostelium Cells [PDF]
Polarity, which refers to the molecular or structural asymmetry in cells, is essential for diverse cellular functions. Dictyostelium has proven to be a valuable system for dissecting the molecular mechanisms of cell polarity. Previous studies in Dictyostelium have revealed a range of signaling and cytoskeletal proteins that function at the leading edge
Dong Li +8 more
openaire +5 more sources
Rap1-interacting adapter molecule (RIAM) associates with the plasma membrane via a proximity detector [PDF]
Adaptive immunity depends on lymphocyte adhesion that is mediated by the integrin lymphocyte functional antigen 1 (LFA-1). The small guanosine triphosphatase Rap1 regulates LFA-1 adhesiveness through one of its effectors, Rap1-interacting adapter ...
Boussiotis, Vassiliki A. +7 more
core +2 more sources
Distinct functional properties of two electrogenic isoforms of the SLC34 Na‐Pi cotransporter
Inorganic phosphate (Pi) is crucial for proper cellular function in all organisms. In mammals, type II Na‐Pi cotransporters encoded by members of the Slc34 gene family play major roles in the maintenance of Pi homeostasis.
Natsuki Mizutani +2 more
doaj +1 more source
Quantification of the in-vivo affinity of PI(4,5)P2 effectors and sensors with the phosphoinositide phosphatase Ci-VSP [PDF]
Zusammenfassung Quantifizierung der in-vivo Affinität von PI(4,5)P2- Effektoren und Sensoren mit der Phosphoinositidphosphatase Ci-VSP Phosphoinositide (PI) sind Mitglieder einer Familie kleiner Membranphospholipide, die wichtige Aufgaben in vielen ...
Rjasanow, Alexandra
core +1 more source
Phosphatidylinositol 4-phosphate 5-kinase β regulates growth cone morphology and Semaphorin 3A-triggered growth cone collapse in mouse dorsal root ganglion neurons [PDF]
Growth cone motility and morphology, which are critical for axon guidance, are controlled through intracellular events such as actin cytoskeletal reorganization and vesicular trafficking.
Goshima Yoshio +4 more
core +1 more source

