Evidence map›Paper›PMID 26189511›Full record

ArticleAnalytical chemistry2015

Deconvolution method for specific and nonspecific binding of ligand to multiprotein complex by native mass spectrometry.

Shenheng Guan, Michael J Trnka, David A Bushnell, Philip J J Robinson, Jason E Gestwicki, Alma L Burlingame

Open access · greenAbstract read
In one paragraph

Article in Analytical chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

6 citing papers in PubMed, 20 citations in OpenAlex.

  1. Computed Vibrational Heat Capacities for Gas-Phase Biomolecular Ions.Journal of the American Society for Mass Spectrometry · 2025
    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 at 3 institutions in 1 country.

Shenheng Guan†Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158-2517, United States.
Michael J Trnka†Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158-2517, United States.
David A Bushnell§Department of Structural Biology, Stanford University School of Medicine, Stanford, California 94305, United States.
Philip J J Robinson§Department of Structural Biology, Stanford University School of Medicine, Stanford, California 94305, United States.
Jason E Gestwicki†Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158-2517, United States.
Alma L Burlingame†Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158-2517, United States.
University of California, San Francisco · USStanford University · USInstitute for Neurodegenerative Disorders · US

Funding

VIRAL DEGENERATIVE DEMENTING DISEASE IN AGING (SUPP)P01AG002132 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI SALI, ANDREJ · 1985 to 2024
$51.7M
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
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
Molecular Chaperones and Small MoleculesR01NS059690 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Jason E Gestwicki · 2008 to 2026
$7.9M
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
Exploration of Molecular Chaperone Complexes During Active Protein TriageR01GM109896 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ANDREWS, PHILIP C, GESTWICKI, JASON E · 2014 to 2017
$1.1M
Purchase of Q-Exactive Mass SpectrometerS10OD016229 · OD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BURLINGAME, ALMA L · 2013 to 2013
$507k
NIAID NIH HHS AI-21144NIAID 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 GM109896NIGMS NIH HHS GM36659NIGMS NIH HHS GM49985NIGMS NIH HHS P41 GM103481NIGMS NIH HHS R01 GM036659NIGMS NIH HHS R01 GM049985NIGMS NIH HHS R01 GM109896NIGMS NIH HHS R37 GM036659NIH HHS 1S10OD016229NIH HHS S10 OD016229NINDS NIH HHS NS059690NINDS NIH HHS R01 NS059690
6 · The paper itself

Abstract

In native mass spectrometry, it has been difficult to discriminate between specific bindings of a ligand to a multiprotein complex target from the nonspecific interactions. Here, we present a deconvolution model that consists of two levels of data reduction. At the first level, the apparent association binding constants are extracted from the measured intensities of the target/ligand complexes by varying ligand concentration. At the second level, two functional forms representing the specific and nonspecific binding events are fit to the apparent binding constants obtained from the first level of modeling. Using this approach, we found that a power-law distribution described nonspecific binding of α-amanitin to yeast RNA polymerase II. Moreover, treating the concentration of the multiprotein complex as a fitting parameter reduced the impact of inaccuracies in this experimental measurement on the apparent association constants. This model improves upon current methods for separating specific and nonspecific binding to large, multiprotein complexes in native mass spectrometry, by modeling nonspecific binding with a power-law function.

Indexed as

LigandsMass SpectrometryAdenosine DiphosphateAlpha-AmanitinCreatine KinaseHumansProtein BindingRecombinant ProteinsRNA Polymerase IISaccharomyces cerevisiaeSirolimusTacrolimus Binding Protein 1AAdenosine DiphosphateAlpha-AmanitinCreatine KinaseLigandsRecombinant ProteinsRNA Polymerase IISirolimusTacrolimus Binding Protein 1A

Identifiers

PMID26189511
PMCPMC4714924
OpenAlexW957557339

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.