Evidence map›Paper›PMID 23283726›Full record

ArticleJournal of the American Society for Mass Spectrometry2013

Electron capture dissociation of trivalent metal ion-peptide complexes.

Tawnya G Flick, William A Donald, Evan R Williams

Abstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2013. 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
–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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Replacing HChemical science · 2018
    Article
  4. Article
  5. Article
  6. Formation and Fragmentation Chemistry of Tripositive Ln(TMGA)Journal of the American Society for Mass Spectrometry · 2017
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Mechanistic study on electron capture dissociation of the oligosaccharide-Mg²⁺ complex.Journal of the American Society for Mass Spectrometry · 2014
    Article
  12. 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

3 authors.

Tawnya G FlickDepartment of Chemistry, University of California, Berkeley, CA 94720-1460, USA.
William A Donald
Evan R Williams

Funding

Development of Single Particle Analyzer of Mass and Mobility (SPAMM)R01GM096097 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI WILLIAMS, EVAN R · 2011 to 2014
$1.1M
NIGMS NIH HHS R01 GM096097NIGMS NIH HHS R01GM096097
6 · The paper itself

Abstract

With electrospray ionization from aqueous solutions, trivalent metal ions readily adduct to small peptides resulting in formation of predominantly (peptide + M(T) - H)(2+), where M(T) = La, Tm, Lu, Sm, Ho, Yb, Pm, Tb, or Eu, for peptides with molecular weights below ~1000 Da, and predominantly (peptide + M(T))(3+) for larger peptides. ECD of (peptide + M(T) - H)(2+) results in extensive fragmentation from which nearly complete sequence information can be obtained, even for peptides for which only singly protonated ions are formed in the absence of the metal ions. ECD of these doubly charged complexes containing M(T) results in significantly higher electron capture efficiency and sequence coverage than peptide-divalent metal ion complexes that have the same net charge. Formation of salt-bridge structures in which the metal ion coordinates to a carboxylate group are favored even for (peptide + M(T))(3+). ECD of these latter complexes for large peptides results in electron capture by the protonation site located remotely from the metal ion and predominantly c/z fragments for all metals, except Eu(3+), which undergoes a one electron reduction and only loss of small neutral molecules and b/y fragments are formed. These results indicate that solvation of the metal ion in these complexes is extensive, which results in the electrochemical properties of these metal ions being similar in both the peptide environment and in bulk water.

Indexed as

CationsCoordination ComplexesElectronsLanthanoid Series ElementsPeptidesSpectrometry, Mass, Electrospray IonizationCationsCoordination ComplexesLanthanoid Series ElementsPeptides

Identifiers

PMID23283726
PMCPMC3570592

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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.