Evidence map›Paper›PMID 22496416›Full record

ArticleMolecular biology of the cell2012

Phosphatidylserine dynamics in cellular membranes.

Jason G Kay, Mirkka Koivusalo, Xiaoxiao Ma, Thorsten Wohland, Sergio Grinstein

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

112 citing papers in PubMed, 188 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Targeting the cell membrane in established and emerging model organisms.bioRxiv : the preprint server for biology · 2025
    Article
  7. Review
  8. The Inner Nuclear Membrane Has a Unique Lipid Signature.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  9. Article
  10. Article
  11. Synthetic Lipid Biology.Chemical reviews · 2025
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Phosphatidic acid signaling and function in nuclei.Progress in lipid research · 2024
    Review

52 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 2 countries.

Jason G KayCell Biology, The Hospital for Sick Children, Toronto, ON, Canada.
Mirkka Koivusalo
Xiaoxiao Ma
Thorsten Wohland
Sergio Grinstein
Hospital for Sick Children · CANational University of Singapore · SG

Funding

Canadian Institutes of Health Research MOP7075Canadian Institutes of Health Research MOP93634
6 · The paper itself

Abstract

Much has been learned about the role of exofacial phosphatidylserine (PS) in apoptosis and blood clotting using annexin V. However, because annexins are impermeant and unable to bind PS at low calcium concentration, they are unsuitable for intracellular use. Thus little is known about the topology and dynamics of PS in the endomembranes of normal cells. We used two new probes-green fluorescent protein (GFP)-LactC2, a genetically encoded fluorescent PS biosensor, and 1-palmitoyl-2-(dipyrrometheneboron difluoride)undecanoyl-sn-glycero-3-phospho-L-serine (TopFluor-PS), a synthetic fluorescent PS analogue-to examine PS distribution and dynamics inside live cells. The mobility of PS was assessed by a combination of advanced optical methods, including single-particle tracking and fluorescence correlation spectroscopy. Our results reveal the existence of a sizable fraction of PS with limited mobility, with cortical actin contributing to the confinement of PS in the plasma membrane. We were also able to measure the dynamics of PS in endomembrane organelles. By targeting GFP-LactC2 to the secretory pathway, we detected the presence of PS in the luminal leaflet of the endoplasmic reticulum. Our data provide new insights into properties of PS inside cells and suggest mechanisms to account for the subcellular distribution and function of this phospholipid.

Indexed as

Biological TransportCell MembraneCholesterolCytosolDiffusionEndoplasmic ReticulumFluorescence Recovery After PhotobleachingFluorescent DyesGreen Fluorescent ProteinsHeLa CellsHumansIntracellular MembranesLipid BilayersLiposomesPhosphatidylserinesProtein BindingCholesterolFluorescent DyesGreen Fluorescent ProteinsLipid BilayersLiposomesPhosphatidylserinesRecombinant Fusion Proteins

Identifiers

PMID22496416
PMCPMC3364182
OpenAlexW2159516959

What OpenQuestion 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 OpenQuestion graph.