Evidence map›Paper›PMID 26860087›Full record

ArticleJournal of the American Society for Mass Spectrometry2016

Examining the Influence of Phosphorylation on Peptide Ion Structure by Ion Mobility Spectrometry-Mass Spectrometry.

Matthew S Glover, Jonathan M Dilger, Matthew D Acton, Randy J Arnold, Predrag Radivojac, David E Clemmer

Abstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Diketopiperazine Formation from FPGThe journal of physical chemistry. B · 2021
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
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  12. Article
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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

6 authors.

Matthew S GloverDepartment of Chemistry, Indiana University, Bloomington, IN, 47405, USA.
Jonathan M DilgerDepartment of Chemistry, Indiana University, Bloomington, IN, 47405, USA.
Matthew D ActonDepartment of Chemistry, Indiana University, Bloomington, IN, 47405, USA.
Randy J ArnoldDepartment of Chemistry, Indiana University, Bloomington, IN, 47405, USA.
Predrag RadivojacDepartment of Computer Science and Informatics, Indiana University, Bloomington, IN, 47405, USA.
David E ClemmerDepartment of Chemistry, Indiana University, Bloomington, IN, 47405, USA. Clemmer@Indiana.EDU.

Funding

Computational approaches to protein identification and quantification using MS/MSR01GM103725 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI RADIVOJAC, PREDRAG · 2012 to 2015
$1.7M
NIGMS NIH HHS R01 GM103725
6 · The paper itself

Abstract

Ion mobility spectrometry-mass spectrometry (IMS-MS) techniques are used to study the general effects of phosphorylation on peptide structure. Cross sections for a library of 66 singly phosphorylated peptide ions from 33 pairs of positional isomers, and unmodified analogues were measured. Intrinsic size parameters (ISPs) derived from these measurements yield calculated collision cross sections for 85% of these phosphopeptide sequences that are within ±2.5% of experimental values. The average ISP for the phosphoryl group (0.64 ± 0.05) suggests that in general this moiety forms intramolecular interactions with the neighboring residues and peptide backbone, resulting in relatively compact structures. We assess the capability of ion mobility to separate positional isomers (i.e., peptide sequences that differ only in the location of the modification) and find that more than half of the isomeric pairs have >1% difference in collision cross section. Phosphorylation is also found to influence populations of structures that differ in the cis/trans orientation of Xaa-Pro peptide bonds. Several sequences with phosphorylated Ser or Thr residues located N-terminally adjacent to Pro residues show fewer conformations compared to the unmodified sequences.

Indexed as

IonsIsomerismMass SpectrometryPhosphopeptidesPhosphorylationProlineIonsPhosphopeptidesProlineIon mobilityPeptide structurePhosphorylationProline isomerization

Identifiers

PMID26860087
PMCPMC5750047

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Registered trials

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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.