Evidence map›Paper›PMID 23194134›Full record

ArticleAnalytical chemistry2013

Electrothermal supercharging in mass spectrometry and tandem mass spectrometry of native proteins.

Catherine A Cassou, Harry J Sterling, Anna C Susa, Evan R Williams

Abstract read
In one paragraph

Article in Analytical chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Charging of Proteins in Native Mass Spectrometry.Journal of the American Society for Mass Spectrometry · 2017
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. The use of chromium(III) to supercharge peptides by protonation at low basicity sites.Journal of the American Society for Mass Spectrometry · 2015
    Article
  16. Article
  17. Article
  18. Soft supercharging of biomolecular ions in electrospray ionization mass spectrometry.Journal of the American Society for Mass Spectrometry · 2014
    Article
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Catherine A CassouDepartment of Chemistry, University of California, Berkeley, 94720-1460, United States.
Harry J Sterling
Anna C Susa
Evan R Williams
University of California, Berkeley · US

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

Electrothermal supercharging of protein ions formed by electrospray ionization from buffered aqueous solutions results in significant increases to both the maximum and average charge states compared to native mass spectrometry in which ions are formed from the same solutions but with lower spray potentials. For eight of the nine proteins investigated, the maximum charge states of protonated ions formed from native solutions with electrothermal supercharging is greater than those obtained from conventional denaturing solutions consisting of water/methanol/acid, although the average charging is slightly lower owing to contributions of small populations of more folded low charge-state structures. Under these conditions, electrothermal supercharging is slightly less effective for anions than for cations. Equivalent sequence coverage (80%) is obtained with electron transfer dissociation of the same high charge-state ion of cytochrome c formed by electrothermal supercharging from native solutions and from denaturing solutions. Electrothermal supercharging should be advantageous for combining structural studies of proteins in native environments with mass spectrometers that have limited high m/z capabilities and for significantly improving tandem mass spectrometry performance for protein ions formed from solutions in which the molecules have native structures and activities.

Indexed as

Spectrometry, Mass, Electrospray IonizationTandem Mass SpectrometryBicarbonatesCytochromes cIonsMethanolProtein DenaturationProteinsSolutionsTemperatureWaterammonium bicarbonateBicarbonatesCytochromes cIonsMethanolProteinsSolutionsWater

Identifiers

PMID23194134
PMCPMC3536820
OpenAlexW1997980075

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.