ArticleBMC cell biology2009
Live cell imaging with protein domains capable of recognizing phosphatidylinositol 4,5-bisphosphate; a comparative study.
Article in BMC cell biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.
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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.
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Who cites it
78 citing papers in PubMed, 124 citations in OpenAlex.
- Extracellular vesicles.Genetics · 2024Review
- Assessing the Presence of Phosphoinositides on Autophagosomal Membrane in Yeast by Live Cell Imaging.Microorganisms · 2024Article
- IMPA1 dependent regulation of phosphatidylinositol 4,5-bisphosphate and calcium signalling by lithium.Life science alliance · 2024Article
- Spatiotemporal Optical Control of Gαq-PLCβ Interactions.ACS synthetic biology · 2024Article
- Picornavirus 3C Proteins Intervene in Host Cell Processes through Proteolysis and Interactions with RNA.Viruses · 2023Review
- INPP5E regulates CD3ζ enrichment at the immune synapse by phosphoinositide distribution control.Communications biology · 2023Article
- Localization of the tubby domain, a PI(4,5)P2 biosensor, to E-Syt3-rich endoplasmic reticulum-plasma membrane junctions.Journal of cell science · 2023Article
- Lipid kinase PIP5Kα contributes to Hippo pathway activation via interaction with Merlin and by mediating plasma membrane targeting of LATS1.Cell communication and signaling : CCS · 2023Article
- Article
- Two cooperative binding sites sensitize PI(4,5)PScience advances · 2022Article
- The inositol 5-phosphatase INPP5B regulates B cell receptor clustering and signaling.The Journal of cell biology · 2022Article
- Expression of the GFP-mammalian pleckstrin homology (PH) domain of the phospholipase C δ1 in Saccharomyces cerevisiae BY4741.Molecular biology reports · 2022Article
- An update on genetically encoded lipid biosensors.Molecular biology of the cell · 2022Article
- Cetylpyridinium chloride (CPC) reduces zebrafish mortality from influenza infection: Super-resolution microscopy reveals CPC interference with multiple protein interactions with phosphatidylinositol 4,5-bisphosphate in immune function.Toxicology and applied pharmacology · 2022Article
- Hippocampal neurons maintain a large PtdIns(4)P pool that results in faster PtdIns(4,5)P2 synthesis.The Journal of general physiology · 2022Article
- IQGAP1 scaffolding links phosphoinositide kinases to cytoskeletal reorganization.Biophysical journal · 2022Article
- PIPCommunications biology · 2022Article
- Diacylglycerol Kinase Inhibition Reduces Airway Contraction by Negative Feedback Regulation of Gq-Signaling.American journal of respiratory cell and molecular biology · 2021Article
- Optical Control of Phosphoinositide Binding: Rapid Activation of Subcellular Protein Translocation and Cell Signaling.ACS synthetic biology · 2021Article
- PIPCell calcium · 2021Article
18 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 2 countries.
Funding
Abstract
backgroundPhosphatidylinositol 4,5-bisphosphate [PtdIns(4,5)P2] is a critically important regulatory phospholipid found in the plasma membrane of all eukaryotic cells. In addition to being a precursor of important second messengers, PtdIns(4,5)P2 also regulates ion channels and transporters and serves the endocytic machinery by recruiting clathrin adaptor proteins. Visualization of the localization and dynamic changes in PtdIns(4,5)P2 levels in living cells is critical to understanding the biology of PtdIns(4,5)P2. This has been mostly achieved with the use of the pleckstrin homology (PH) domain of PLCdelta1 fused to GFP. Here we report on a comparative analysis of several recently-described yeast PH domains as well as the mammalian Tubby domain to evaluate their usefulness as PtdIns(4,5)P2 imaging tools.
resultsAll of the yeast PH domains that have been previously shown to bind PtdIns(4,5)P2 showed plasma membrane localization but only a subset responded to manipulations of plasma membrane PtdIns(4,5)P2. None of these domains showed any advantage over the PLCdelta1PH-GFP reporter and were compromised either in their expression levels, nuclear localization or by causing peculiar membrane structures. In contrast, the Tubby domain showed high membrane localization consistent with PtdIns(4,5)P2 binding and displayed no affinity for the soluble headgroup, Ins(1,4,5)P3. Detailed comparison of the Tubby and PLCdelta1PH domains showed that the Tubby domain has a higher affinity for membrane PtdIns(4,5)P2 and therefore displays a lower sensitivity to report on changes of this lipid during phospholipase C activation.
conclusionThese results showed that both the PLCdelta1PH-GFP and the GFP-Tubby domain are useful reporters of PtdIns(4,5)P2 changes in the plasma membrane, with distinct advantages and disadvantages. While the PLCdelta1PH-GFP is a more sensitive reporter, its Ins(1,4,5)P3 binding may compromise its accuracy to measure PtdIns(4,5)P2 changes. The Tubby domain is more accurate to report on PtdIns(4,5)P2 but its higher affinity and lower sensitivity may limit its utility when phospholipase C activation is only moderate. These studies also demonstrated that similar changes in PtdIns(4,5)P2 levels in the plasma membrane can differentially regulate multiple effectors if they display different affinities to PtdIns(4,5)P2.
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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.