Evidence map›Paper›PMID 19556238›Full record

ArticleThe Journal of biological chemistry2009

Localizing the membrane binding region of Group VIA Ca2+-independent phospholipase A2 using peptide amide hydrogen/deuterium exchange mass spectrometry.

Yuan-Hao Hsu, John E Burke, Sheng Li, Virgil L Woods, Edward A Dennis

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
–field-weighted citation impact
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

45 citing papers in PubMed.

  1. Review
  2. Article
  3. The mechanism of allosteric regulation of calcium-independent phospholipase AProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Phospholipase ABiochimica et biophysica acta. Molecular and cell biology of lipids · 2019
    Review
  13. Dynamic structural biology at the protein membrane interface.The Journal of biological chemistry · 2019
    Review
  14. Article
  15. Article
  16. The structure of iPLANature communications · 2018
    Article
  17. Article
  18. Article
  19. Review
  20. Article
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.

Yuan-Hao HsuDepartment of Chemistry, University of California, San Diego, La Jolla, California 92093-0601, USA.
John E Burke
Sheng Li
Virgil L Woods
Edward A Dennis

Funding

ACTION OF LIPOLYTIC ENZYMESR01GM020501 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DENNIS, EDWARD A · 1985 to 2020
$7.3M
Enhanced Crystallography of Cancer-Implicated ProteinsR33CA099835 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI WOODS, VIRGIL L · 2004 to 2006
$1.8M
Hydrogen Deuterium Exchange Mapping of Chemokine Receptor Complex InterfacesR21AI076961 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI HANDEL, TRACY M, WOODS, VIRGIL L · 2008 to 2009
$425k
DXMS-Facilitated Membrane Protein Construct Design/CancerR21CA118595 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI WOODS, VIRGIL L · 2006 to 2007
$420k
Enhanced Crystallography of Cancer-Implicated ProteinsR21CA099835 · NCI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI WOODS, VIRGIL L · 2003 to 2003
$142k
DESIGN OF AMPHIPHILIC PEPTOID ASSEMBLIESF32GM020501 · NIGMS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI BURKOTH, TIMOTHY S · 2000 to 2002
$75k
NCI NIH HHS CA099835NCI NIH HHS CA118595NCI NIH HHS R21 CA099835NCI NIH HHS R21 CA118595NCI NIH HHS R33 CA099835NIAID NIH HHS AI076961NIAID NIH HHS R21 AI076961NIGMS NIH HHS F32 GM020501NIGMS NIH HHS GM20501NIGMS NIH HHS R01 GM020501
6 · The paper itself

Abstract

The Group VIA-2 Ca(2+)-independent phospholipase A(2) (GVIA-2 iPLA(2)) is composed of seven consecutive N-terminal ankyrin repeats, a linker region, and a C-terminal phospholipase catalytic domain. No structural information exists for this enzyme, and no information is known about the membrane binding surface. We carried out deuterium exchange experiments with the GVIA-2 iPLA(2) in the presence of both phospholipid substrate and the covalent inhibitor methyl arachidonoyl fluorophosphonate and located regions in the protein that change upon lipid binding. No changes were seen in the presence of only methyl arachidonoyl fluorophosphonate. The region with the greatest change upon lipid binding was region 708-730, which showed a >70% decrease in deuteration levels at numerous time points. No decreases in exchange due to phospholipid binding were seen in the ankyrin repeat domain of the protein. To locate regions with changes in exchange on the enzyme, we constructed a computational homology model based on homologous structures. This model was validated by comparing the deuterium exchange results with the predicted structure. Our model combined with the deuterium exchange results in the presence of lipid substrate have allowed us to propose the first structural model of GVIA-2 iPLA(2) as well as the interfacial lipid binding region.

Indexed as

AmidesAmino Acid SequenceBinding SitesCalciumCell MembraneDeuterium Exchange MeasurementGroup VI Phospholipases A2HumansHydrogenMass SpectrometryMolecular ConformationMolecular Sequence DataPhospholipidsProtein BindingProtein Structure, TertiaryAmidesCalciumGroup VI Phospholipases A2HydrogenPhospholipids

Identifiers

PMID19556238
PMCPMC2749140

What OpenQuestion holds

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Registered trials

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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.