Evidence map›Paper›PMID 18707901›Full record

ArticleJournal of the American Society for Mass Spectrometry2008

Quantifying protein interface footprinting by hydroxyl radical oxidation and molecular dynamics simulation: application to galectin-1.

Olga Charvátová, B Lachele Foley, Marshall W Bern, Joshua S Sharp, Ron Orlando, Robert J Woods

Abstract read
In one paragraph

Article in Journal of the American Society for Mass Spectrometry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing 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

45 citing papers in PubMed.

  1. Review
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  10. Variation in FPOP Measurements Is Primarily Caused by Poor Peptide Signal Intensity.Journal of the American Society for Mass Spectrometry · 2018
    Article
  11. Review
  12. Review
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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.

Olga CharvátováComplex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602, USA.
B Lachele Foley
Marshall W Bern
Joshua S Sharp
Ron Orlando
Robert J Woods

Funding

ZINC DEFICIENCY &PROTEIN EXPRESSION IN RAT OLFACTORY BULBSP41RR005351 · NCRR · UNIVERSITY OF GEORGIA (UGA) · PI VENOT, ANDRE · 1989 to 2011
$18.4M
COMPUTATIONAL ANALYSIS OF CARBOHYDRATE ANTIGENICITYR01GM055230 · NIGMS · UNIVERSITY OF GEORGIA (UGA) · PI WOODS, ROBERT J · 2001 to 2010
$1.6M
COMPUTATIONAL ANALYSIS OF CARBOHYDRATE ANTIGENICITYR29GM055230 · NIGMS · UNIVERSITY OF GEORGIA (UGA) · PI WOODS, ROBERT J · 1997 to 2000
$101k
NCRR NIH HHS P41 RR005351NCRR NIH HHS RR05357NIGMS NIH HHS GM55230NIGMS NIH HHS R01 GM055230NIGMS NIH HHS R29 GM055230
6 · The paper itself

Abstract

Biomolecular surface mapping methods offer an important alternative method for characterizing protein-protein and protein-ligand interactions in cases in which it is not possible to determine high-resolution three-dimensional (3D) structures of complexes. Hydroxyl radical footprinting offers a significant advance in footprint resolution compared with traditional chemical derivatization. Here we present results of footprinting performed with hydroxyl radicals generated on the nanosecond time scale by laser-induced photodissociation of hydrogen peroxide. We applied this emerging method to a carbohydrate-binding protein, galectin-1. Since galectin-1 occurs as a homodimer, footprinting was employed to characterize the interface of the monomeric subunits. Efficient analysis of the mass spectrometry data for the oxidized protein was achieved with the recently developed ByOnic (Palo Alto, CA) software that was altered to handle the large number of modifications arising from side-chain oxidation. Quantification of the level of oxidation has been achieved by employing spectral intensities for all of the observed oxidation states on a per-residue basis. The level of accuracy achievable from spectral intensities was determined by examination of mixtures of synthetic peptides related to those present after oxidation and tryptic digestion of galectin-1. A direct relationship between side-chain solvent accessibility and level of oxidation emerged, which enabled the prediction of the level of oxidation given the 3D structure of the protein. The precision of this relationship was enhanced through the use of average solvent accessibilities computed from 10 ns molecular dynamics simulations of the protein.

Indexed as

Computer SimulationGalectin 1Hydrogen PeroxideHydroxyl RadicalModels, MolecularOxidation-ReductionPeptidesProtein FootprintingSolventsGalectin 1Hydrogen PeroxideHydroxyl RadicalPeptidesSolvents

Identifiers

PMID18707901
PMCPMC2607067

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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.