Evidence map›Paper›PMID 23525111›Full record

ArticleThe Journal of biological chemistry2013

Identification of a long-range protein network that modulates active site dynamics in extremophilic alcohol dehydrogenases.

Zachary D Nagel, Shujian Cun, Judith P Klinman

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

31 citing papers in PubMed, 47 citations in OpenAlex.

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  9. Hydrogen deuterium exchange defines catalytically linked regions of protein flexibility in the catecholProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Article
  11. Moving Through Barriers in Science and Life.Annual review of biochemistry · 2019
    Article
  12. Article
  13. Engineered control of enzyme structural dynamics and function.Protein science : a publication of the Protein Society · 2018
    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

3 authors at 1 institution in 1 country.

Zachary D NagelDepartment of Chemistry, University of California, Berkeley, California 94720.
Shujian CunDepartment of Chemistry, University of California, Berkeley, California 94720; California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, California 94720.
Judith P KlinmanDepartment of Chemistry, University of California, Berkeley, California 94720; California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, California 94720; Department of Molecular and Cell Biology, University of California, Berkeley, California 94720. Electronic address: klinman@berkeley.edu.
University of California, Berkeley · US

Funding

MOLECULAR BIOPHYSICS TRAINING GRANTT32GM008295 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI HURLEY, JAMES H, WEMMER, DAVID E · 1989 to 2022
$8.1M
Toward a Comprehensive Model for Enzyme CatalysisR01GM025765 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI KLINMAN, JUDITH P · 1985 to 2015
$7.1M
DOPAMINE MONOOXYGENASE--MOLECULAR MECHANISMSR37GM025765 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI KLINMAN, JUDITH POLLOCK · 1990 to 1999
–
NIGMS NIH HHS GM008295NIGMS NIH HHS GM025765NIGMS NIH HHS R01 GM025765NIGMS NIH HHS R37 GM025765NIGMS NIH HHS T32 GM008295
6 · The paper itself

Abstract

A tetrameric thermophilic alcohol dehydrogenase from Bacillus stearothermophilus (ht-ADH) has been mutated at an aromatic side chain in the active site (Trp-87). The ht-W87A mutation results in a loss of the Arrhenius break seen at 30 °C for the wild-type enzyme and an increase in cold lability that is attributed to destabilization of the active tetrameric form. Kinetic isotope effects (KIEs) are nearly temperature-independent over the experimental temperature range, and similar in magnitude to those measured above 30 °C for the wild-type enzyme. This suggests that the rigidification in the wild-type enzyme below 30 °C does not occur for ht-W87A. A mutation at the dimer-dimer interface in a thermolabile psychrophilic homologue of ht-ADH, ps-A25Y, leads to a more thermostable enzyme and a change in the rate-determining step at low temperature. The reciprocal mutation in ht-ADH, ht-Y25A, results in kinetic behavior similar to that of W87A. Collectively, the results indicate that flexibility at the active site is intimately connected to a subunit interaction 20 Å away. The convex Arrhenius curves previously reported for ht-ADH (Kohen, A., Cannio, R., Bartolucci, S., and Klinman, J. P. (1999) Nature 399, 496-499) are proposed to arise, at least in part, from a change in subunit interactions that rigidifies the substrate-binding domain below 30 °C, and impedes the ability of the enzyme to sample the catalytically relevant conformational landscape. These results implicate an evolutionarily conserved, long-range network of dynamical communication that controls C-H activation in the prokaryotic alcohol dehydrogenases.

Indexed as

MutationProtein BindingAlcohol DehydrogenaseBacterial ProteinsCatalysisCatalytic DomainCircular DichroismCloning, MolecularCold TemperatureGeobacillus stearothermophilusHydrogenMutagenesisProtein ConformationSpectrophotometryAlcohol DehydrogenaseBacterial ProteinsHydrogenAlcohol DehydrogenaseConformational SamplingConvex Arrhenius CurvesCorresponding State HypothesisEnzyme CatalysisExtremophilesHydrogen TunnelingIsotope EffectsMutagenesisProtein Dynamics

Identifiers

PMID23525111
PMCPMC3656266
OpenAlexW2084228049

What OpenQuestion holds

Textmetadata
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.