Evidence map›Paper›PMID 19467606›Full record

ArticleJournal of the American Society for Mass Spectrometry2009

Protein conformations can be probed in top-down HDX MS experiments utilizing electron transfer dissociation of protein ions without hydrogen scrambling.

Rinat R Abzalimov, Desmond A Kaplan, Michael L Easterling, Igor A Kaltashov

Abstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing 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

63 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Fundamentals of HDX-MS.Essays in biochemistry · 2023
    Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Top-Down Analysis of In-Source HDX of Native Protein Ions.Journal of the American Society for Mass Spectrometry · 2020
    Article
  18. Review
  19. Review
  20. Review

3 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

4 authors.

Rinat R AbzalimovDepartment of Chemistry, University of Massachusetts-Amherst, Amherst, Massachusetts 01003, USA.
Desmond A Kaplan
Michael L Easterling
Igor A Kaltashov

Funding

PROTEIN FOLDING DYNAMICS BY MASS SPECTROMETRYR01GM061666 · NIGMS · UNIVERSITY OF MASSACHUSETTS AMHERST · PI KALTASHOV, IGOR A · 2000 to 2013
$3.4M
NIGMS NIH HHS R01 GM061666
6 · The paper itself

Abstract

Electron-transfer dissociation (ETD) is evaluated as a technique to provide local information on higher order structure and dynamics of a whole protein molecule. Isotopic labeling of highly flexible segments of a model 18 kDa protein is carried out in solution under mildly denaturing conditions by means of hydrogen/deuterium exchange (HDX), followed by transfer of intact protein ions to the gas phase by means of electrospray ionization, and mass-selection of a precursor ion for subsequent reactions with fluoranthene radical anions. The ETD process gives rise to abundant fragment ions, whose deuterium content can be measured as a function of duration of the HDX reaction in solution. No backbone protection is detected for all protein segments spanning the 25-residue long N-terminal part of the protein, which is known to lack structure in solution. At the same time, noticeable protection is evident for segments representing the structured regions of the protein. The results of this work suggest that ETD of intact protein ions is not accompanied by detectable hydrogen scrambling and can be used in tandem with HDX to probe protein conformation in solution.

Indexed as

Electron TransportHydrogenProtein ConformationProteinsSpectrometry, Mass, Electrospray IonizationHydrogenProteins

Identifiers

PMID19467606
PMCPMC2725517

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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.