Evidence map›Paper›PMID 23007400›Full record

ArticleThe Journal of biological chemistry2012

Roles of acidic phospholipids and nucleotides in regulating membrane binding and activity of a calcium-independent phospholipase A2 isoform.

Kylee Morrison, Kristen Witte, Jonathan R Mayers, Amber L Schuh, Anjon Audhya

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
0.8field-weighted citation impact, top 31% 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

13 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Mitochondrial Dysfunction in Genetic and Non-Genetic Parkinson's Disease.International journal of molecular sciences · 2025
    Review
  3. Review
  4. The PNPLA family of enzymes: characterisation and biological role.Arhiv za higijenu rada i toksikologiju · 2023
    Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
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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 1 institution in 1 country.

Kylee MorrisonDepartment of Biomolecular Chemistry, University of Wisconsin-Madison Medical School, Madison, Wisconsin 53706, USA.
Kristen Witte
Jonathan R Mayers
Amber L Schuh
Anjon Audhya
University of Wisconsin–Madison · US

Funding

Molecular Mechanisms that Regulate Lysosomal Protein TransportR01GM088151 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI AUDHYA, ANJON · 2010 to 2019
$3.0M
NIGMS NIH HHS 1R01GM088151NIGMS NIH HHS R01 GM088151
6 · The paper itself

Abstract

Phospholipase A(2) activity plays key roles in generating lipid second messengers and regulates membrane topology through the generation of asymmetric lysophospholipids. In particular, the Group VIA phospholipase A(2) (GVIA-iPLA(2)) subfamily of enzymes functions independently of calcium within the cytoplasm of cells and has been implicated in numerous cellular processes, including proliferation, apoptosis, and membrane transport steps. However, mechanisms underlying the spatial and temporal regulation of these enzymes have remained mostly unexplored. Here, we examine the subset of Caenorhabditis elegans lipases that harbor a consensus motif common to members of the GVIA-iPLA(2) subfamily. Based on sequence homology, we identify IPLA-1 as the closest C. elegans homolog of human GVIA-iPLA(2) enzymes and use a combination of liposome interaction studies to demonstrate a role for acidic phospholipids in regulating GVIA-iPLA(2) function. Our studies indicate that IPLA-1 binds directly to multiple acidic phospholipids, including phosphatidylserine, phosphatidylglycerol, cardiolipin, phosphatidic acid, and phosphorylated derivatives of phosphatidylinositol. Moreover, the presence of these acidic lipids dramatically elevates the specific activity of IPLA-1 in vitro. We also found that the addition of ATP and ADP promote oligomerization of IPLA-1, which probably underlies the stimulatory effect of nucleotides on its activity. We propose that membrane composition and the presence of nucleotides play key roles in recruiting and modulating GVIA-iPLA(2) activity in cells.

Indexed as

AnimalsCaenorhabditis elegansCalorimetryCell MembraneDimerizationEscherichia coliGene Expression RegulationGenomeGroup VI Phospholipases A2HumansLipid MetabolismLiposomesMutationNucleotidesPhospholipasesPhospholipases A2, Calcium-IndependentGroup VI Phospholipases A2LiposomesNucleotidesPhospholipasesPhospholipases A2, Calcium-IndependentPhospholipids

Identifiers

PMID23007400
PMCPMC3493924
OpenAlexW1971418768

What OpenQuestion holds

Textmetadata
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.