Evidence map›Paper›PMID 28691068›Full record

ArticleACS central science2017

Hydrogen-Deuterium Exchange of Lipoxygenase Uncovers a Relationship between Distal, Solvent Exposed Protein Motions and the Thermal Activation Barrier for Catalytic Proton-Coupled Electron Tunneling.

Adam R Offenbacher, Shenshen Hu, Erin M Poss, Cody A M Carr, Alexander D Scouras, Daniil M Prigozhin, Anthony T Iavarone, Ali Palla, Tom Alber, James S Fraser and 1 more

Abstract read
In one paragraph

Article in ACS central science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing 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

50 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. A Foundational Shift in Models for Enzyme Function.Journal of the American Chemical Society · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Understanding the role of oxylipins inFrontiers in plant science · 2025
    Review
  11. Article
  12. Impact ofBiochemistry · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Biochemistry · 2023
    Article
  18. Article
  19. Temporal and spatial resolution of distal protein motions that activate hydrogen tunneling in soybean lipoxygenase.Proceedings of the National Academy of Sciences of the United States of America · 2023
    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

11 authors.

Adam R OffenbacherDepartment of Chemistry, University of California, Berkeley, California 94720, United States.
Shenshen HuDepartment of Chemistry, University of California, Berkeley, California 94720, United States.
Erin M PossDepartment of Bioengineering and Therapeutic Science, University of California, San Francisco, San Francisco, California 94158, United States.
Cody A M CarrDepartment of Chemistry, University of California, Berkeley, California 94720, United States.
Alexander D ScourasCalifornia Institute for Quantitative Biosciences (QB3), University of California, Berkeley, California 94720, United States.
Daniil M PrigozhinCalifornia Institute for Quantitative Biosciences (QB3), University of California, Berkeley, California 94720, United States.
Anthony T IavaroneDepartment of Chemistry, University of California, Berkeley, California 94720, United States.
Ali PallaDepartment of Chemistry, University of California, Berkeley, California 94720, United States.
Tom AlberCalifornia Institute for Quantitative Biosciences (QB3), University of California, Berkeley, California 94720, United States.
James S FraserDepartment of Bioengineering and Therapeutic Science, University of California, San Francisco, San Francisco, California 94158, United States.
Judith P KlinmanDepartment of Chemistry, University of California, Berkeley, California 94720, United States.

Funding

RESEARCH TRAINING IN CHEMISTRY AND CHEMICAL BIOLOGYT32GM064337 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CRAIK, CHARLES SCOTT · 2002 to 2021
$7.8M
Looking in New Directions for Origins and Cryptic Mechanisms of Enzyme CatalysisR35GM118117 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI KLINMAN, JUDITH P · 2016 to 2025
$7.5M
Toward a Comprehensive Model for Enzyme CatalysisR01GM025765 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI KLINMAN, JUDITH P · 1985 to 2015
$7.1M
High Definition Ion Mobility SpectrometerS10OD020062 · OD · UNIVERSITY OF CALIFORNIA BERKELEY · PI WILLIAMS, EVAN R · 2015 to 2015
$590k
Linking Dynamical Contributions to Biological Hydrogen Tunneling in LipoxygenasesF32GM113432 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI OFFENBACHER, ADAM · 2015 to 2016
$120k
DOPAMINE MONOOXYGENASE--MOLECULAR MECHANISMSR37GM025765 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI KLINMAN, JUDITH POLLOCK · 1990 to 1999
–
NIGMS NIH HHS F32 GM113432NIGMS NIH HHS R01 GM025765NIGMS NIH HHS R35 GM118117NIGMS NIH HHS R37 GM025765NIGMS NIH HHS T32 GM064337NIH HHS S10 OD020062
6 · The paper itself

Abstract

Defining specific pathways for efficient heat transfer from protein-solvent interfaces to their active sites represents one of the compelling and timely challenges in our quest for a physical description of the origins of enzyme catalysis. Enzymatic hydrogen tunneling reactions constitute excellent systems in which to validate experimental approaches to this important question, given the inherent temperature independence of quantum mechanical wave function overlap. Herein, we present the application of hydrogen-deuterium exchange coupled to mass spectrometry toward the spatial resolution of protein motions that can be related to an enzyme's catalytic parameters. Employing the proton-coupled electron transfer reaction of soybean lipoxygenase as proof of principle, we first corroborate the impact of active site mutations on increased local flexibility and, second, uncover a solvent-exposed loop, 15-34 Å from the reactive ferric center whose temperature-dependent motions are demonstrated to mirror the enthalpic barrier for catalytic C-H bond cleavage. A network that connects this surface loop to the active site is structurally identified and supported by changes in kinetic parameters that result from site-specific mutations.

Identifiers

PMID28691068
PMCPMC5492416

What OpenQuestion holds

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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.