Evidence map›Paper›PMID 26323614›Full record

ArticleJournal of the American Society for Mass Spectrometry2015

Improved Peak Detection and Deconvolution of Native Electrospray Mass Spectra from Large Protein Complexes.

Jonathan Lu, Michael J Trnka, Soung-Hun Roh, Philip J J Robinson, Carrie Shiau, Danica Galonic Fujimori, Wah Chiu, Alma L Burlingame, Shenheng Guan

Abstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Article
  2. Article
  3. A Fast Neural Network for Isotopic Charge State Assignment.Journal of the American Chemical Society · 2025
    Article
  4. Article
  5. Review
  6. Review
  7. Deconvolving Native and Intact Protein Mass Spectra with UniDec.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  8. Article
  9. Native Mass Spectrometry of Iron-Sulfur Proteins.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. MetaUniDec: High-Throughput Deconvolution of Native Mass Spectra.Journal of the American Society for Mass Spectrometry · 2019
    Article
  18. 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

9 authors.

Jonathan LuDepartment of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA.
Michael J TrnkaDepartment of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA.
Soung-Hun RohVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, 77030, USA.
Philip J J RobinsonDepartment of Structural Biology, Stanford University School of Medicine, Stanford, CA, 94305, USA.
Carrie ShiauDepartment of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA.
Danica Galonic FujimoriDepartment of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA.
Wah ChiuVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, 77030, USA.
Alma L BurlingameDepartment of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA.
Shenheng GuanDepartment of Pharmaceutical Chemistry, University of California, San Francisco, CA, 94158, USA. sguan@cgl.ucsf.edu.

Funding

VIRAL DEGENERATIVE DEMENTING DISEASE IN AGING (SUPP)P01AG002132 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SALI, ANDREJ · 1985 to 2024
$51.7M
Center for Protein Folding Machinery (RMI)PN2EY016525 · NEI · BAYLOR COLLEGE OF MEDICINE · PI CHIU, WAH · 2005 to 2015
$33.6M
UNDERSTANDING AND IMPROVING SMALL MOLECULE INHIBITORS OF PRION REPLICATIONP01AG021601 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PRUSINER, STANLEY B · 2003 to 2013
$31.9M
SYNTHETIC AND RECOMBINANT PRP PEPTIDES AND PROTEINSP01AG010770 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PRUSINER, STANLEY B · 1993 to 2015
$30.3M
3 D ELECTRON MICROSCOPY OF MACROMOLECULES (5P41RR002250-27)P41GM103832 · NIGMS · STANFORD UNIVERSITY · PI CHIU, WAH · 2012 to 2019
$15.1M
Structure of the Eukaryote Transcription ApparatusR01AI021144 · NIAID · STANFORD UNIVERSITY · PI KORNBERG, ROGER D · 1985 to 2018
$10.3M
STRUCTURE OF RNA POLYMERASE IIR01GM049985 · NIGMS · STANFORD UNIVERSITY · PI PUGLISI, JOSEPH D · 1993 to 2020
$10.2M
RESEARCH TRAINING IN CHEMISTRY AND CHEMICAL BIOLOGYT32GM064337 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CRAIK, CHARLES SCOTT · 2002 to 2021
$7.8M
Bio-Organic Biomedical Mass Spectromy ResourceP41GM103481 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BURLINGAME, ALMA L · 2012 to 2015
$6.4M
RNA POLYMERASE II TRANSCRIPTION SYSTEM FROM YEASTR01GM036659 · NIGMS · STANFORD UNIVERSITY · PI KORNBERG, ROGER D · 1986 to 2016
$4.7M
RNA POLYMERASE II TRANSCRIPTION SYSTEM FROM YEASTR37GM036659 · NIGMS · STANFORD UNIVERSITY · PI KORNBERG, ROGER D · 1998 to 2008
$4.6M
NEI NIH HHS PN2 EY016525NEI NIH HHS PN2EY016525NIAID NIH HHS AI21144NIAID NIH HHS R01 AI021144NIA NIH HHS AG002132NIA NIH HHS AG010770NIA NIH HHS AG021601NIA NIH HHS P01 AG002132NIA NIH HHS P01 AG010770NIA NIH HHS P01 AG021601NIGMS NIH HHS 8P41GM103481NIGMS NIH HHS GM36659NIGMS NIH HHS GM49985NIGMS NIH HHS P41 GM103481NIGMS NIH HHS P41 GM103832NIGMS NIH HHS P41GM103832NIGMS NIH HHS R01 GM036659NIGMS NIH HHS R01 GM049985NIGMS NIH HHS R37 GM036659NIGMS NIH HHS T32 GM064337
6 · The paper itself

Abstract

Native electrospray-ionization mass spectrometry (native MS) measures biomolecules under conditions that preserve most aspects of protein tertiary and quaternary structure, enabling direct characterization of large intact protein assemblies. However, native spectra derived from these assemblies are often partially obscured by low signal-to-noise as well as broad peak shapes because of residual solvation and adduction after the electrospray process. The wide peak widths together with the fact that sequential charge state series from highly charged ions are closely spaced means that native spectra containing multiple species often suffer from high degrees of peak overlap or else contain highly interleaved charge envelopes. This situation presents a challenge for peak detection, correct charge state and charge envelope assignment, and ultimately extraction of the relevant underlying mass values of the noncovalent assemblages being investigated. In this report, we describe a comprehensive algorithm developed for addressing peak detection, peak overlap, and charge state assignment in native mass spectra, called PeakSeeker. Overlapped peaks are detected by examination of the second derivative of the raw mass spectrum. Charge state distributions of the molecular species are determined by fitting linear combinations of charge envelopes to the overall experimental mass spectrum. This software is capable of deconvoluting heterogeneous, complex, and noisy native mass spectra of large protein assemblies as demonstrated by analysis of (1) synthetic mononucleosomes containing severely overlapping peaks, (2) an RNA polymerase II/α-amanitin complex with many closely interleaved ion signals, and (3) human TriC complex containing high levels of background noise. Graphical Abstract ᅟ.

Indexed as

AlgorithmsAlpha-AmanitinAnimalsChaperonin Containing TCP-1HeLa CellsHistonesHumansModels, MolecularNucleosomesProteinsRNA Polymerase IISaccharomyces cerevisiaeSoftwareSpectrometry, Mass, Electrospray IonizationXenopusXenopus ProteinsAlpha-AmanitinChaperonin Containing TCP-1HistonesNucleosomesProteinsRNA Polymerase IIXenopus ProteinsDeconvolutionNative mass spectrometryProtein assembliesProtein complexes

Identifiers

PMID26323614
PMCPMC5067139

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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.