Results 51 to 60 of about 58,639 (259)

PIP2: A critical regulator of vascular ion channels hiding in plain sight

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance Phosphatidylinositol 4,5-bisphosphate (PIP2), a plasma membrane lipid, is hydrolyzed by Gq-protein–coupled receptor (GqPCR) signaling into inositol 1,4,5-trisphosphate and diacylglycerol—extensively studied second messengers with profound ...
O. Harraz, David Hill-Eubanks, M. Nelson
semanticscholar   +1 more source

Quantitative analysis of mammalian GIRK2 channel regulation by G proteins, the signaling lipid PIP2 and Na+ in a reconstituted system

eLife, 2014
GIRK channels control spike frequency in atrial pacemaker cells and inhibitory potentials in neurons. By directly responding to G proteins, PIP2 and Na+, GIRK is under the control of multiple signaling pathways. In this study, the mammalian GIRK2 channel
Weiwei Wang, Matthew R Whorton, Roderick MacKinnon   +2 more
doaj   +1 more source

Do anionic phospholipids serve as cofactors or second messengers for the regulation of activity of cloned ATP-sensitive K+ channels? [PDF]

, 2003
The regulation of ion channels by anionic phospholipids is currently very topical. An outstanding issue is whether phosphatidylinositol 4,5-diphosphate and related species act as true second messengers in signaling or behave in a manner analogous to an ...
Clapp, LH, Cui, Y, Giblin, JP, Quinn, KV, Tinker, A   +4 more
core   +1 more source

Activation of native TRPC1/C5/C6 channels by endothelin-1 is mediated by both PIP3 and PIP2 in rabbit coronary artery myocytes [PDF]

, 2009
We investigate activation mechanisms of native TRPC1/C5/C6 channels (termed TRPC1 channels) by stimulation of endothelin-1 (ET-1) receptor subtypes in freshly dispersed rabbit coronary artery myocytes using single channel recording and ...
Ahmmed, Albert, Albert, Albert, Albert, Albert, Albert, Albert, Anthony P. Albert, Boualleque, Clapham, Davenport, Davenport, Drummond, Fukami, Hamill, Hardie, Helliwell, Inoue, Ivey, Kawanabe, Kinlay, Kwon, Large, Lemonnier, Liu, Miwa, Nakanishi, Nilius, Otsuguro, Peppiatt-Wildman, Rohacs, Saleh, Saleh, Saleh, Schiffrin, Sohag N. Saleh, Sugawara, Sumner, Trebak, Tseng, Vanhaesebroeck, Voets, Wang, William A. Large   +44 more
core   +2 more sources

A long QT mutation substitutes cholesterol for phosphatidylinositol-4,5-bisphosphate in KCNQ1 channel regulation.

PLoS ONE, 2014
IntroductionPhosphatidylinositol-4,5-bisphosphate (PIP2) is a cofactor necessary for the activity of KCNQ1 channels. Some Long QT mutations of KCNQ1, including R243H, R539W and R555C have been shown to decrease KCNQ1 interaction with PIP2.
Fabien C Coyan, Fayal Abderemane-Ali, Mohamed Yassine Amarouch, Julien Piron, Jérôme Mordel, Céline S Nicolas, Marja Steenman, Jean Mérot, Céline Marionneau, Annick Thomas, Robert Brasseur, Isabelle Baró, Gildas Loussouarn   +12 more
doaj   +1 more source

Insulin Action on Polyunsaturated Phosphatidic Acid Formation in Rat Brain: An “In Vitro” Model with Synaptic Endings from Cerebral Cortex and Hippocampus [PDF]

, 2009
The highly efficient formation of phosphatidic acid from exogenous 1-stearoyl-2-arachidonoyl-sn-glycerol (SAG) in rat brain synaptic nerve endings (synaptosomes) from cerebral cortex and hippocampus is reported.
Giusto, Norma Maria, Ilincheta, Monica Graciela, Zulian, Sandra Edith   +2 more
core   +1 more source

Structural and Functional Analysis of a β2-Adrenergic Receptor Complex with GRK5. [PDF]

, 2017
The phosphorylation of agonist-occupied G-protein-coupled receptors (GPCRs) by GPCR kinases (GRKs) functions to turn off G-protein signaling and turn on arrestin-mediated signaling.
Adams, Christopher M., Benovic, Jeffrey L., Betz, Robin M., Chung, Ka Young, Dror, Ron O., Du, Yang, Duc, Nguyen Minh, Kobilka, Brian K., Komolov, Konstantin E., Leib, Ryan D., Patra, Dhabaleswar, Rodrigues, João P.G.L.M., Skiniotis, Georgios   +12 more
core   +2 more sources

Insight into Phosphatidylinositol-Dependent Membrane Localization of the Innate Immune Adaptor Protein Toll/Interleukin 1 Receptor Domain-Containing Adaptor Protein

Frontiers in Immunology, 2018
The toll/interleukin 1 receptor (TIR) domain-containing adaptor protein (TIRAP) plays an important role in the toll-like receptor (TLR) 2, TLR4, TLR7, and TLR9 signaling pathways.
Mahesh Chandra Patra, Sangdun Choi
doaj   +1 more source

Integrative binding sites within intracellular termini of TRPV1 receptor. [PDF]

PLoS ONE, 2012
TRPV1 is a nonselective cation channel that integrates wide range of painful stimuli. It has been shown that its activity could be modulated by intracellular ligands PIP2 or calmodulin (CaM).
Lenka Grycova, Blanka Holendova, Ladislav Bumba, Jan Bily, Michaela Jirku, Zdenek Lansky, Jan Teisinger   +6 more
doaj   +1 more source

GCGR-PIP2

, 2022
Atomistic and Coarse Grained simulaitions of GCGR in simple and complex bilayers studying the interaction with PIP2 lipids.
openaire   +1 more source