Evidence map›Paper›PMID 37172218›Full record

ArticleJournal of the American Chemical Society2023

Second-Shell Residues Contribute to Catalysis by Predominately Preorganizing the Apo State in PafA.

Jiahua Deng, Qiang Cui

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

11 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Force fields matter in DNA polProtein science : a publication of the Protein Society · 2026
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Correlating enzymatic reactivity for different substrates using transferable data-driven collective variables.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  9. Review
  10. Review
  11. 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

2 authors at 1 institution in 1 country.

Jiahua DengDepartment of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States.ORCID 0000-0001-8865-4786
Qiang CuiDepartment of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States.ORCID 0000-0001-6214-5211
Boston University · US

Funding

Computational Analysis of Enzyme Catalysis and RegulationR35GM141930 · NIGMS · BOSTON UNIVERSITY (CHARLES RIVER CAMPUS) · PI Qiang Cui · 2021 to 2026
$2.7M
NIGMS NIH HHS R35 GM141930
6 · The paper itself

Abstract

Residues beyond the first coordination shell are often observed to make considerable cumulative contributions in enzymes. Due to typically indirect perturbations of multiple physicochemical properties of the active site, however, their individual and specific roles in enzyme catalysis and disease-causing mutations remain difficult to predict and understand at the molecular level. Here we analyze the contributions of several second-shell residues in phosphate-irrepressible alkaline phosphatase of flavobacterium (PafA), a representative system as one of the most efficient enzymes. By adopting a multifaceted approach that integrates quantum-mechanical/molecular-mechanical free energy computations, molecular-mechanical molecular dynamics simulations, and density functional theory cluster model calculations, we probe the rate-limiting phosphoryl transfer step and structural properties of all relevant enzyme states. In combination with available experimental data, our computational results show that mutations of the studied second-shell residues impact catalytic efficiency mainly by perturbation of the apo state and therefore substrate binding, while they do not affect the ground state or alter the nature of phosphoryl transfer transition state significantly. Several second-shell mutations also modulate the active site hydration level, which in turn influences the energetics of phosphoryl transfer. These mechanistic insights also help inform strategies that may improve the efficiency of enzyme design and engineering by going beyond the current focus on the first coordination shell.

Indexed as

Alkaline PhosphataseMolecular Dynamics SimulationCatalysisAlkaline Phosphatase

Identifiers

PMID37172218
PMCPMC10810092
OpenAlexW4376270414

What OpenQuestion holds

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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.