Cited by 185Mass Spectrometry Techniques and ApplicationsAdvanced Proteomics Techniques and ApplicationsProtein Structure and Dynamics

Surfactant effects on protein structure examined by electrospray ionization mass spectrometry

Open access
Loo, R. R. Ogorzalek, Dales, N., Andrews, P. C.·1994·Protein Science

Abstract

Electrospray ionization mass spectrometry (ESI‐MS) has proven to be a useful tool for examining noncovalent complexes between proteins and a variety of ligands. It has also been used to distinguish between denatured and refolded forms of proteins. Surfactants are frequently employed to enhance solubilization or to modify the tertiary or quaternary structure of proteins, but are usually considered incompatible with mass spectrometry. A broad range of ionic, nonionic, and zwitterionic surfactants was examined to characterize their effects on ESI‐MS and on protein structure under ESI‐MS conditions. Solution conditions studied include 4% acetic acid/50% acetonitrile/46% H 2 O and 100% aqueous. Of the surfactants examined, the nonionic saccharides, such as n‐dodecyl‐β‐D‐gluco‐pyranoside, at 0.1% to 0.01% (w/v) concentrations, performed best, with limited interference from chemical background and adduct formation. Under the experimental conditions used, ESI‐MS performance in the presence of surfactants was found to be unrelated to critical micelle concentration. It is demonstrated that surfactants can affect both the tertiary and quaternary structures of proteins under conditions used for ESI‐MS. However, several of the surfactants caused significant shifts in the charge‐state distributions, which appeared to be independent of conformational effects. These observations suggest that surfactants, used in conjunction with ESI‐MS, can be useful for protein structure studies, if care is used in the interpretation of the results.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/pro.5560031109

Cites

34 of 34 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Most salts and conventional surfactants are incompatible with MS and must be removed before downstream analysis.

    “However, most salts and conventional surfactants are generally incompatible with MS analysis and must be removed before downstream analysis [22].”
  • Precipitation is often required with surfactants because surfactants inhibit MS signal by outcompeting proteins or forming harmful adducts.

    “In particular, precipitation is often required when using surfactants, which are often employed during cell lysis to solubilize hydrophobic membrane proteins, because they significantly inhibit MS signal by outcompeting proteins for ionization or by forming harmful adducts [24,25].”
  • A clear 1% solution of Azo has a Krafft temperature of 24.5 °C, as reported in prior work.

    “Kraft temperature (a clear 1% surfactant solution) was previously reported at 24.5 °C7.”

    From A photocleavable surfactant for top-down proteomics (2019) · cites this paper as [7]

  • Conventional ionic surfactants are incompatible with mass spectrometry because they greatly suppress protein MS signal.

    “Unfortunately, conventional ionic surfactants are not compatible with MS because they greatly suppress protein MS signal6, 7.”

    From A photocleavable surfactant for top-down proteomics (2019) · cites this paper as [7]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 35 references couldn’t be matched to a known paper.

Research works printed but not linked: 5

  1. Barnidge DR. Dratz E, Sunner J. 1994. Analysis of hydrophobic protein sam- ples by electrospray ionization mass spectrometry. Proceedings of the 42nd ASMS Conference on Mass Spectrometry and Allied Topics, Chi- Bollag DM, Edelstein SJ. 1991. Protein methods. New York: Wiley-Liss. cago. p 671.
  2. 1469896x, 1994, 11, Downloaded from https://onlinelibrary.wiley.com/doi/10.1002/pro.5560031109, Wiley Online Library on [15/08/2023]. See the Terms and Conditions (https://onlinelibrary.wiley.com/terms-and-conditions) on Wiley Online Library for rules of use; OA articles are governed by the applicable Creative Commons License
  3. Mirza UA, Chait BT. 1993. Effects of anions on electrospray ionization mass spectra of peptides and proteins. Proceedings of the 41st ASMS Con- ference on Mass Spectrometry and Allied Topics, Sun Francisco. p. 616.
  4. Vorm 0, Chait BT, Roepstorff P. 1993. Mass spectrometry of protein sam- ples containing detergents. Proceedings of the 41st ASMS Conference on Mass Spectrometry and Allied Topics, Sun Francisco. pp 621-622.
  5. 1469896x, 1994, 11, Downloaded from https://onlinelibrary.wiley.com/doi/10.1002/pro.5560031109, Wiley Online Library on [15/08/2023]. See the Terms and Conditions (https://onlinelibrary.wiley.com/terms-and-conditions) on Wiley Online Library for rules of use; OA articles are governed by the applicable Creative Commons License

Cited by

Sorted by citations

Authors
Loo, R. R. O., Dales, N., & Andrews, P. C.
Affiliations
University of Michigan (US)
Corresponding author
Andrews, P. C.
Venue
Protein Science
Publisher
Wiley
Published
1994-11
Volume
3
Issue
11
Pages
1975-1983
ISSN
  • 0961-8368 (ISSN-L)
  • 1469-896X
OpenAlex
W1996316908
Cited by
184
References
35
Citations by year
2026: 1 · 2025: 6 · 2024: 7 · 2023: 8 · 2022: 7 · 2021: 10 · 2020: 11 · 2019: 5 · 2018: 7 · 2017: 7 · 2016: 11 · 2015: 9 · 2014: 4 · 2013: 6 · 2012: 3
FWCI
2.65
Type
journal article
Language
en
Open access
Locations
  • Protein Science (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
surfactants, protein structure, electrospray ionization mass spectrometry, nonionic surfactants, protein tertiary structure, quaternary structure, charge state distribution, critical micelle concentration, protein denaturation, adduct formation
MeSH terms
Cytochrome c Group, Detergents, Micelles, Muramidase, Myoglobin, Protein Binding, Protein Conformation, Protein Denaturation, Mass Spectrometry, Surface-Active Agents, Ubiquitins, Protein Structure, Tertiary

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review