Evidence map›Paper›PMID 28933661›Full record

ArticlemAbs

Suppressing allostery in epitope mapping experiments using millisecond hydrogen / deuterium exchange mass spectrometry.

Bin Deng, Shaolong Zhu, Andrew M Macklin, Jianrong Xu, Cristina Lento, Adnan Sljoka, Derek J Wilson

Abstract read
In one paragraph

Article in mAbs. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Article
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  5. Identification ofFrontiers in immunology · 2025
    Article
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  7. Recent Progress in Antibody Epitope Prediction.Antibodies (Basel, Switzerland) · 2023
    Review
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  9. Article
  10. Article
  11. 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

7 authors.

Bin Denga Chemistry Department , York University , 4700 Keele Street, Toronto , ON , Canada.
Shaolong Zhua Chemistry Department , York University , 4700 Keele Street, Toronto , ON , Canada.
Andrew M Macklina Chemistry Department , York University , 4700 Keele Street, Toronto , ON , Canada.
Jianrong Xuc Department of Pharmacology, Institute of Medical Sciences , Shanghai Jiao Tong University School of Medicine , Shanghai , P.R. China.
Cristina Lentoa Chemistry Department , York University , 4700 Keele Street, Toronto , ON , Canada.
Adnan Sljokad Department of Informatics , Kwansei Gakuin University , Nishinomiya , Hyogo , Japan.
Derek J Wilsona Chemistry Department , York University , 4700 Keele Street, Toronto , ON , Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Localization of the interface between the candidate antibody and its antigen target, commonly known as epitope mapping, is a critical component of the development of therapeutic monoclonal antibodies. With the recent availability of commercial automated systems, hydrogen / deuterium eXchange (HDX) is rapidly becoming the tool for mapping epitopes preferred by researchers in both industry and academia. However, this approach has a significant drawback in that it can be confounded by 'allosteric' structural and dynamic changes that result from the interaction, but occur far from the point(s) of contact. Here, we introduce a 'kinetic' millisecond HDX workflow that suppresses allosteric effects in epitope mapping experiments. The approach employs a previously introduced microfluidic apparatus that enables millisecond HDX labeling times with on-chip pepsin digestion and electrospray ionization. The 'kinetic' workflow also differs from conventional HDX-based epitope mapping in that the antibody is introduced to the antigen at the onset of HDX labeling. Using myoglobin / anti-myoglobin as a model system, we demonstrate that at short 'kinetic' workflow labeling times (i.e., 200 ms), the HDX signal is already fully developed at the 'true' epitope, but is still largely below the significance threshold at allosteric sites. Identification of the 'true' epitope is supported by computational docking predictions and allostery modeling using the rigidity transmission allostery algorithm.

Indexed as

Antibodies, MonoclonalDeuterium Exchange MeasurementEpitope MappingEpitopesHumansKineticsMass SpectrometryMicrofluidicsMolecular Docking SimulationMyoglobinProtein BindingAntibodies, MonoclonalEpitopesMyoglobinAllosteric EffectsBinding DynamicsBiopharmaceuticalsEffective MixingEpitope MappingHydrogen Deuterium ExchangeLaminar FlowMicrofluidic ChipMonoclonal AntibodyTime-Resolved Electrospray Ionization Mass Spectrometry

Identifiers

PMID28933661
PMCPMC5680795

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.