ArticleBiophysical journal2011
Divalent cation-dependent formation of electrostatic PIP2 clusters in lipid monolayers.
Article in Biophysical journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
45 citing papers in PubMed, 90 citations in OpenAlex.
- Lipid nanoparticles as active biointerfaces: From membrane interaction to systemic dysregulation.Acta pharmaceutica Sinica. B · 2026Review
- Calcium-sensitive synaptotagmin 11-lipid interaction modulates exo-endocytosis.Nature communications · 2025Article
- Combined thermodynamic and time-resolved structural analysis of interactions between AP2 and biomimetic plasma membranes provides insights into clathrin-mediated endocytosis.Communications biology · 2025Article
- Effects of CaBiochemistry · 2025Article
- Phosphoinositide switches in cell physiology - From molecular mechanisms to disease.The Journal of biological chemistry · 2024Review
- Phosphatidylinositol 4,5-Bisphosphate and Cholesterol Regulators of the Calcium-Activated Chloride Channels TMEM16A and TMEM16B.Advances in experimental medicine and biology · 2023Article
- Synaptotagmin rings as high-sensitivity regulators of synaptic vesicle docking and fusion.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Impact of CaBiomolecules · 2022Article
- CaMolecular biology of the cell · 2022Article
- The degree and position of phosphorylation determine the impact of toxic and trace metals on phosphoinositide containing model membranes.BBA advances · 2021Article
- The Polarized Redistribution of the Contractile Vacuole to the Rear of the Cell is Critical for Streaming and is Regulated by PI(4,5)P2-Mediated Exocytosis.Frontiers in cell and developmental biology · 2021Review
- Article
- Structure and Lateral Organization of Phosphatidylinositol 4,5-bisphosphate.Molecules (Basel, Switzerland) · 2020Review
- A multiscale biophysical model for the recruitment of actin nucleating proteins at the membrane interface.Soft matter · 2020Article
- Divalent cations bind to phosphoinositides to induce ion and isomer specific propensities for nano-cluster initiation in bilayer membranes.Royal Society open science · 2020Article
- Characterization of Specific Ion Effects on PI(4,5)PThe journal of physical chemistry. B · 2020Article
- GαBiochemistry · 2019Article
- Membrane reshaping by micrometric curvature sensitive septin filaments.Nature communications · 2019Article
- Multivalent Cation-Bridged PI(4,5)PBiophysical journal · 2018Article
- Quantifying spatial and temporal variations of the cell membrane ultra-structure by bimFCS.Methods (San Diego, Calif.) · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 2 countries.
Funding
Abstract
Polyphosphoinositides are among the most highly charged molecules in the cell membrane, and the most common polyphosphoinositide, phosphatidylinositol-4,5-bisphosphate (PIP(2)), is involved in many mechanical and biochemical processes in the cell membrane. Divalent cations such as calcium can cause clustering of the polyanionic PIP(2), but the origin and strength of the effective attractions leading to clustering has been unclear. In addition, the question of whether the ion-mediated attractions could be strong enough to alter the mechanical properties of the membrane, to our knowledge, has not been addressed. We study phase separation in mixed monolayers of neutral and highly negatively charged lipids, induced by the addition of divalent positively charged counterions, both experimentally and numerically. We find good agreement between experiments on mixtures of PIP(2) and 1-stearoyl-2-oleoyl phosphatidylcholine and simulations of a simplified model in which only the essential electrostatic interactions are retained. In addition, we find numerically that under certain conditions the effective attractions can rigidify the resulting clusters. Our results support an interpretation of PIP(2) clustering as governed primarily by electrostatic interactions. At physiological pH, the simulations suggest that the effective attractions are strong enough to give nearly pure clusters of PIP(2) even at small overall concentrations of PIP(2).
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.