Evidence map›Paper›PMID 16904337›Full record

ArticleJournal of the American Society for Mass Spectrometry2006

Use of a double resonance electron capture dissociation experiment to probe fragment intermediate lifetimes.

Cheng Lin, Jason J Cournoyer, Peter B O'Connor

Erratum issuedAbstract read
PubMed Publisher
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

  1. Article
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  3. Article
  4. Review
  5. Replacing HChemical science · 2018
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  15. Article
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  17. Article
  18. Charge remote fragmentation in electron capture and electron transfer dissociation.Journal of the American Society for Mass Spectrometry · 2010
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

3 authors.

Cheng LinMass Spectrometry Resource, Department of Biochemistry, Boston University School of Medicine, 670 Albany St., 02118, Boston, MA, USA.
Jason J CournoyerDepartment of Chemistry, Boston University, Boston, Massachusetts, USA.
Peter B O'ConnorMass Spectrometry Resource, Department of Biochemistry, Boston University School of Medicine, 670 Albany St., 02118, Boston, MA, USA. poconnor@bu.edu.

Funding

XI INTERNATIONAL SYMPOSIUM ON AMYLOIDOSISP41RR010888 · NCRR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI ZAIA, JOSEPH · 1996 to 2011
$18.6M
NHLBI PROTEOMICS INITIATIVEN01HV28178 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · 2007 to 2008
$2.8M
NHLBI PROTEOMICS INITIATIVE-N01HV28178N01HV028178 · HV · BOSTON UNIVERSITY MEDICAL CAMPUS · PI COSTELLO, CATHERINE E. · 2002 to 2006
–
NCRR NIH HHS P41RR10888NHLBI NIH HHS N01HV28178
6 · The paper itself

Abstract

The relative abundances of fragment ions in electron capture dissociation (ECD) are often greatly affected by the secondary and tertiary structures of the precursor ion, and have been used to derive the gas-phase conformations of the protein ions. In this study, it is found that resonance ejection of the charge reduced molecular ion during ECD resulted in significant changes in many fragment ion populations. The ratio of the ion peak intensities in the double resonance (DR)-ECD to that in the normal ECD experiment can be used to calculate the lifetime of the radical intermediates from which these fragments are derived. These lifetimes are often in the ms range, a time sufficiently long to facilitate multiple free radical rearrangements. These ratios correlate with the intramolecular noncovalent interactions in the precursor ion, and can be used to deduce information about the gas-phase conformation of peptide ions. DR-ECD experiments can also provide valuable information on ECD mechanisms, such as the importance of secondary electron capture and the origin of c./z ions.

Indexed as

CyclotronsSpectrometry, Mass, Electrospray IonizationSpectroscopy, Fourier Transform InfraredCyclosporineElectronsFibrinopeptide BMelittenPeptidesTandem Mass SpectrometryCyclosporineFibrinopeptide BMelittenPeptides

Identifiers

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.