Evidence map›Paper›PMID 22610994›Full record

ArticleJournal of the American Society for Mass Spectrometry2012

Charge state coalescence during electrospray ionization improves peptide identification by tandem mass spectrometry.

Jesse G Meyer, Elizabeth A Komives

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

27 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
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  3. Synergistic Arg-C Ultra and Lys-C Digestion for Quantitative Proteomics.bioRxiv : the preprint server for biology · 2025
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  20. One-hour proteome analysis in yeast.Nature protocols · 2015
    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

2 authors at 1 institution in 1 country.

Jesse G MeyerDepartment of Chemistry and Biochemistry, University of California-San Diego, La Jolla, CA, 92093-0378, USA.
Elizabeth A Komives
University of California, San Diego · US

Funding

Training in Multi-Scale Analysis of Biological Structure and FunctionT32EB009380 · NIBIB · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Andrew D. McCulloch, Padmini Rangamani · 2009 to 2026
$4.8M
Modeling and analysis of the mechanochemical processes that govern clathrin-mediated endocytosisR01GM132106 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI RANGAMANI, PADMINI · 2020 to 2024
$1.5M
NIBIB NIH HHS T32 EB009380NIBIB NIH HHS T32EB009380NIGMS NIH HHS R01 GM132106
6 · The paper itself

Abstract

We report the effects of supercharging reagents dimethyl sulphoxide (DMSO) and m-nitrobenzyl alcohol (m-NBA) applied to untargeted peptide identification, with special emphasis on non-tryptic peptides. Peptides generated from a mixture of five standard proteins digested with trypsin, elastase, or pepsin were separated with nanoflow liquid chromatography using mobile phases modified with either 5% DMSO or 0.1%m-NBA. Eluting peptides were ionized by online electrospray and sequenced by both CID and ETD using data-dependent MS/MS. Statistically significant improvements in peptide identifications were observed with DMSO co-solvent. In order to understand this observation, we assessed the effects of supercharging reagents on the chromatographic separation and the electrospray quality. The increase in identifications was not due to supercharging, which was greater for the 0.1%m-NBA co-solvent and not observed for the 5.0% DMSO co-solvent. The improved MS/MS efficiency using the DMSO modified mobile phase appeared to result from charge state coalescence.

Indexed as

Amino Acid SequenceBenzyl AlcoholsDimethyl SulfoxideMolecular Sequence DataPancreatic ElastasePepsin APeptide FragmentsProteinsSpectrometry, Mass, Electrospray IonizationTandem Mass SpectrometryTrypsin3-nitrobenzyl alcoholBenzyl AlcoholsDimethyl SulfoxidePancreatic ElastasePepsin APeptide FragmentsProteinsTrypsin

Identifiers

PMID22610994
PMCPMC6345509
OpenAlexW2137214758

What OpenQuestion holds

Textmetadata
LicenceTDM
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.