Evidence map›Paper›PMID 25902402›Full record

ArticleeLife2015

Extensive site-directed mutagenesis reveals interconnected functional units in the alkaline phosphatase active site.

Fanny Sunden, Ariana Peck, Julia Salzman, Susanne Ressl, Daniel Herschlag

Abstract read
In one paragraph

Article in eLife, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
–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

34 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  12. High throughput and quantitative enzymology in the genomic era.Current opinion in structural biology · 2021
    Review
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  18. Evolutionary repurposing of a sulfatase: A new Michaelis complex leads to efficient transition state charge offset.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
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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

5 authors.

Fanny SundenDepartment of Biochemistry, Beckman Center, Stanford University, Stanford, United States.
Ariana PeckDepartment of Biochemistry, Beckman Center, Stanford University, Stanford, United States.
Julia SalzmanDepartment of Biochemistry, Beckman Center, Stanford University, Stanford, United States.
Susanne ResslMolecular and Cellular Biochemistry Department, Indiana University Bloomington, Bloomington, United States.
Daniel HerschlagDepartment of Biochemistry, Beckman Center, Stanford University, Stanford, United States.

Funding

Study of Nonenzymatic and Enzymatic Phosphoryl TransferR01GM064798 · NIGMS · STANFORD UNIVERSITY · PI Polly Morrell Fordyce, DANIEL HERSCHLAG · 2002 to 2026
$5.9M
ENZYMOLOGY OF A CATALYTIC RNA MOLECULER01GM049243 · NIGMS · STANFORD UNIVERSITY · PI HERSCHLAG, DANIEL · 1993 to 2016
$2.3M
NIGMS NIH HHS GM64798NIGMS NIH HHS R01 GM049243NIGMS NIH HHS R01 GM064798
6 · The paper itself

Abstract

Enzymes enable life by accelerating reaction rates to biological timescales. Conventional studies have focused on identifying the residues that have a direct involvement in an enzymatic reaction, but these so-called 'catalytic residues' are embedded in extensive interaction networks. Although fundamental to our understanding of enzyme function, evolution, and engineering, the properties of these networks have yet to be quantitatively and systematically explored. We dissected an interaction network of five residues in the active site of Escherichia coli alkaline phosphatase. Analysis of the complex catalytic interdependence of specific residues identified three energetically independent but structurally interconnected functional units with distinct modes of cooperativity. From an evolutionary perspective, this network is orders of magnitude more probable to arise than a fully cooperative network. From a functional perspective, new catalytic insights emerge. Further, such comprehensive energetic characterization will be necessary to benchmark the algorithms required to rationally engineer highly efficient enzymes.

Indexed as

Models, MolecularAlkaline PhosphataseBinding SitesCatalysisEscherichia coliKineticsMutagenesis, Site-DirectedAlkaline Phosphatasealkaline phosphatasebiochemistryE. colienzyme catalysisenzyme designenzyme evolutionenzyme mechanismstructure function

Identifiers

PMID25902402
PMCPMC4438272

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.