Evidence map›Paper›PMID 27506206›Full record

ArticleJournal of the American Society for Mass Spectrometry2017

Native Mass Spectrometry Characterizes the Photosynthetic Reaction Center Complex from the Purple Bacterium Rhodobacter sphaeroides.

Hao Zhang, Lucas B Harrington, Yue Lu, Mindy Prado, Rafael Saer, Don Rempel, Robert E Blankenship, Michael L Gross

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.4field-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

5 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
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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

8 authors at 1 institution in 1 country.

Hao ZhangDepartment of Chemistry, Washington University in St. Louis, One Brookings Dr., St. Louis, MO, 63130, USA.
Lucas B HarringtonDepartment of Chemistry, Washington University in St. Louis, One Brookings Dr., St. Louis, MO, 63130, USA.
Yue LuDepartment of Chemistry, Washington University in St. Louis, One Brookings Dr., St. Louis, MO, 63130, USA.
Mindy PradoDepartment of Biology, Washington University in St. Louis, One Brookings Dr., St. Louis, MO, 63130, USA.
Rafael SaerDepartment of Biology, Washington University in St. Louis, One Brookings Dr., St. Louis, MO, 63130, USA.
Don RempelDepartment of Chemistry, Washington University in St. Louis, One Brookings Dr., St. Louis, MO, 63130, USA.
Robert E BlankenshipDepartment of Chemistry, Washington University in St. Louis, One Brookings Dr., St. Louis, MO, 63130, USA. blankenship@wustl.edu.
Michael L GrossDepartment of Chemistry, Washington University in St. Louis, One Brookings Dr., St. Louis, MO, 63130, USA. mgross@wustl.edu.
Washington University in St. Louis · US

Funding

TrainingP41GM103422 · NIGMS · WASHINGTON UNIVERSITY · PI YARASHESKI, KEVIN E · 2012 to 2019
$12.0M
NIGMS NIH HHS P41 GM103422
6 · The paper itself

Abstract

Native mass spectrometry (MS) is an emerging approach to study protein complexes in their near-native states and to elucidate their stoichiometry and topology. Here, we report a native MS study of the membrane-embedded reaction center (RC) protein complex from the purple photosynthetic bacterium Rhodobacter sphaeroides. The membrane-embedded RC protein complex is stabilized by detergent micelles in aqueous solution, directly introduced into a mass spectrometer by nano-electrospray (nESI), and freed of detergents and dissociated in the gas phase by collisional activation. As the collision energy is increased, the chlorophyll pigments are gradually released from the RC complex, suggesting that native MS introduces a near-native structure that continues to bind pigments. Two bacteriochlorophyll a pigments remain tightly bound to the RC protein at the highest collision energy. The order of pigment release and their resistance to release by gas-phase activation indicates the strength of pigment interaction in the RC complex. This investigation sets the stage for future native MS studies of membrane-embedded photosynthetic pigment-protein and related complexes.Graphical Abstract.

Indexed as

Spectrometry, Mass, Electrospray IonizationBacterial ProteinsChlorophyllDetergentsMicellesModels, MolecularPhotosynthetic Reaction Center Complex ProteinsRhodobacter sphaeroidesBacterial ProteinsChlorophyllDetergentsMicellesPhotosynthetic Reaction Center Complex ProteinsMembrane protein complexNative mass spectrometryPhotosynthesisPigment–protein interactionsPurple bacteriumReaction center

Identifiers

PMID27506206
PMCPMC5613939
OpenAlexW2529258391

What OpenQuestion holds

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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.