Evidence map›Paper›PMID 22235130›Full record

ArticleThe Journal of biological chemistry2012

Apolipoprotein A-II-mediated conformational changes of apolipoprotein A-I in discoidal high density lipoproteins.

Kekulawalage Gauthamadasa, Nataraja Sarma Vaitinadin, James L Dressman, Stephen Macha, Reyn Homan, Kenneth D Greis, R A Gangani D Silva

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 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.5field-weighted citation impact, top 17% 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, 14 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Kekulawalage GauthamadasaDepartment of Pathology and Laboratory Medicine, Center for Lipids and Atherosclerosis Sciences, University of Cincinnati, Cincinnati, Ohio 45267, USA.
Nataraja Sarma Vaitinadin
James L Dressman
Stephen Macha
Reyn Homan
Kenneth D Greis
R A Gangani D Silva
University of Cincinnati · USAlphacore (United States) · USUniversity of Cincinnati Medical Center · US

Funding

The role of apolipoprotein A-II in the modulation of HDL functionR00HL087561 · NHLBI · UNIVERSITY OF CINCINNATI · PI SILVA, RANASINGHE · 2009 to 2011
$742k
The Role of Apolipoprotein A-II in the Modulation of HDL FunctionK99HL087561 · NHLBI · UNIVERSITY OF CINCINNATI · PI SILVA, RANASINGHE · 2007 to 2008
$174k
NHLBI NIH HHS K99 HL087561NHLBI NIH HHS K99/R00 HL087561NHLBI NIH HHS R00 HL087561
6 · The paper itself

Abstract

It is well accepted that HDL has the ability to reduce risks for several chronic diseases. To gain insights into the functional properties of HDL, it is critical to understand the HDL structure in detail. To understand interactions between the two major apolipoproteins (apos), apoA-I and apoA-II in HDL, we generated highly defined benchmark discoidal HDL particles. These particles were reconstituted using a physiologically relevant phospholipid, 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) incorporating two molecules of apoA-I and one homodimer of apoA-II per particle. We utilized two independent mass spectrometry techniques to study these particles. The techniques are both sensitive to protein conformation and interactions and are namely: 1) hydrogen deuterium exchange combined with mass spectrometry and 2) partial acetylation of lysine residues combined with MS. Comparison of mixed particles with apoA-I only particles of similar diameter revealed that the changes in apoA-I conformation in the presence of apoA-II are confined to apoA-I helices 3-4 and 7-9. We discuss these findings with respect to the relative reactivity of these two particle types toward a major plasma enzyme, lecithin:cholesterol acyltransferase responsible for the HDL maturation process.

Indexed as

Apolipoprotein A-IApolipoprotein A-IIDeuterium Exchange MeasurementHumansLipoproteinsLipoproteins, HDLPhosphatidylcholinesProtein Structure, Secondary1-palmitoyl-2-oleoylphosphatidylcholineApolipoprotein A-IApolipoprotein A-IIdiscoidal lipoproteinsLipoproteinsLipoproteins, HDLPhosphatidylcholines

Identifiers

PMID22235130
PMCPMC3293592
OpenAlexW2026561452

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.