Evidence map›Paper›PMID 31895009›Full record

ArticleMolecular biology of the cell2020

Imaging FCS delineates subtle heterogeneity in plasma membranes of resting mast cells.

Nirmalya Bag, David A Holowka, Barbara A Baird

Open access · bronzeAbstract read
In one paragraph

Article in Molecular biology of the cell, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Lipid-based and protein-based interactions synergize transmembrane signaling stimulated by antigen clustering of IgE receptors.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  10. Review
  11. Bringing light to ER contacts and a new phase in organelle communication.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  12. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Nirmalya BagDepartment of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853.
David A HolowkaDepartment of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853.
Barbara A BairdDepartment of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853.
Cornell University · US

Funding

High Resolution Characterization of Receptor Signaling and RegulationR01GM117552 · NIGMS · CORNELL UNIVERSITY · PI BAIRD, BARBARA A, HOLOWKA, DAVID A · 2016 to 2023
$3.2M
NIGMS NIH HHS R01 GM117552
6 · The paper itself

Abstract

A myriad of transient, nanoscopic lipid- and protein-based interactions confer a steady-state organization of the plasma membrane in resting cells that is poised to orchestrate assembly of key signaling components upon reception of an extracellular stimulus. Although difficult to observe directly in live cells, these subtle interactions can be discerned by their impact on the diffusion of membrane constituents. Here, we quantified the diffusion properties of a panel of structurally distinct lipid, lipid-anchored, and transmembrane (TM) probes in RBL mast cells by imaging fluorescence correlation spectroscopy (ImFCS). We developed a statistical analysis of data combined from many pixels over multiple cells to characterize differences in diffusion coefficients as small as 10%, which reflect differences in underlying interactions. We found that the distinctive diffusion properties of lipid probes can be explained by their dynamic partitioning into Lo-like proteolipid nanodomains, which encompass a major fraction of the membrane and whose physical properties are influenced by actin polymerization. Effects on diffusion of functional protein modules in both lipid--anchored and TM probes reflect additional complexity in steady state membrane organization. The contrast we observe between different probes diffusing through the same membrane milieu represents the dynamic resting steady state, which serves as a baseline for monitoring plasma membrane remodeling that occurs upon stimulation.

Indexed as

Spectrometry, FluorescenceActinsAnimalsCell LineCell MembraneDiffusionGreen Fluorescent ProteinsImaging, Three-DimensionalImmunoglobulin ELipidsMast CellsPolymerizationRatsReceptors, IgEActinsenhanced green fluorescent proteinFCER1A protein, ratGreen Fluorescent ProteinsImmunoglobulin ELipidsReceptors, IgE

Identifiers

PMID31895009
PMCPMC7202073
OpenAlexW2998238839

What Socratic holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

Registered trials

None linked

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 Socratic graph.