Evidence map›Paper›PMID 27541577›Full record

ArticleThe journal of physical chemistry. B2016

Vibrational Stark Effects of Carbonyl Probes Applied to Reinterpret IR and Raman Data for Enzyme Inhibitors in Terms of Electric Fields at the Active Site.

Samuel H Schneider, Steven G Boxer

Open access · greenAbstract read
In one paragraph

Article in The journal of physical chemistry. B, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

37 citing papers in PubMed, 95 citations in OpenAlex.

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  11. Understanding the role of negative charge in the scaffold of an artificial enzyme for COJournal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2024
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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

2 authors at 1 institution in 1 country.

Samuel H SchneiderDepartment of Chemistry, Stanford University , Stanford, California 94305-5012, United States.
Steven G BoxerDepartment of Chemistry, Stanford University , Stanford, California 94305-5012, United States.
Stanford University · US

Funding

Biophysical Studies of Macromolecules and Molecular AssembliesR35GM118044 · NIGMS · STANFORD UNIVERSITY · PI STEVEN G. BOXER · 2016 to 2026
$7.2M
NMR &CIDNP STUDIES OF MB MUTANTS &OLIGONUCLEOTIDE LOOPR01GM027738 · NIGMS · STANFORD UNIVERSITY · PI BOXER, STEVEN G. · 1985 to 2016
$4.3M
ELECTROSTATICS AND DYNAMICS IN MYOGLOBIN MUTANTSR37GM027738 · NIGMS · STANFORD UNIVERSITY · PI BOXER, STEVEN G. · 1994 to 2003
$1.2M
NIGMS NIH HHS R01 GM027738NIGMS NIH HHS R35 GM118044NIGMS NIH HHS R37 GM027738
6 · The paper itself

Abstract

IR and Raman frequency shifts have been reported for numerous probes of enzyme transition states, leading to diverse interpretations. In the case of the model enzyme ketosteroid isomerase (KSI), we have argued that IR spectral shifts for a carbonyl probe at the active site can provide a connection between the active site electric field and the activation free energy (Fried et al. Science 2014, 346, 1510-1514). Here we generalize this approach to a much broader set of carbonyl probes (e.g., oxoesters, thioesters, and amides), first establishing the sensitivity of each probe to an electric field using vibrational Stark spectroscopy, vibrational solvatochromism, and MD simulations, and then applying these results to reinterpret data already in the literature for enzymes such as 4-chlorobenzoyl-CoA dehalogenase and serine proteases. These results demonstrate that the vibrational Stark effect provides a general framework for estimating the electrostatic contribution to the catalytic rate and may provide a metric for the design or modification of enzymes. Opportunities and limitations of the approach are also described.

Indexed as

Static ElectricityVibrationAmidesCatalytic DomainEnzyme InhibitorsEstersMolecular Dynamics SimulationSpectroscopy, Fourier Transform InfraredSpectrum Analysis, RamanSteroid IsomerasesSulfhydryl CompoundsAmidesEnzyme InhibitorsEstersSteroid IsomerasesSulfhydryl Compounds

Identifiers

PMID27541577
PMCPMC5077301
OpenAlexW2513133975

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.