Evidence map›Paper›PMID 29620883›Full record

ArticleJournal of the American Chemical Society2018

An Oxetane-Based Polyketide Surrogate To Probe Substrate Binding in a Polyketide Synthase.

Bryan D Ellis, Jacob C Milligan, Alexander R White, Vy Duong, Pilar X Altman, Lina Y Mohammed, Matthew P Crump, John Crosby, Ray Luo, Christopher D Vanderwal and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Article
  3. Oxetanes in Drug Discovery Campaigns.Journal of medicinal chemistry · 2023
    Review
  4. Article
  5. Article
  6. 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

11 authors at 2 institutions in 2 countries.

Bryan D EllisDepartment of Chemistry , University of California Irvine , 1102 Natural Sciences II , Irvine , California 92697 , United States.
Jacob C MilliganDepartments of Molecular Biology and Biochemistry, Chemistry, and Pharmaceutical Sciences , University of California Irvine , 2218 Natural Sciences I , Irvine , California 92697 , United States.
Alexander R WhiteDepartment of Chemistry , University of California Irvine , 1102 Natural Sciences II , Irvine , California 92697 , United States.
Vy DuongDepartments of Molecular Biology and Biochemistry, Biomedical Engineering, and Chemical Engineering & Materials Science , University of California Irvine , 2218 Natural Sciences I , Irvine , California 92697 , United States.
Pilar X AltmanDepartments of Molecular Biology and Biochemistry, Chemistry, and Pharmaceutical Sciences , University of California Irvine , 2218 Natural Sciences I , Irvine , California 92697 , United States.
Lina Y MohammedSchool of Chemistry , University of Bristol , Cantock's Close, Bristol BS8 1TS , United Kingdom.
Matthew P CrumpSchool of Chemistry , University of Bristol , Cantock's Close, Bristol BS8 1TS , United Kingdom.ORCID 0000-0002-7868-5818
John CrosbySchool of Chemistry , University of Bristol , Cantock's Close, Bristol BS8 1TS , United Kingdom.
Ray LuoDepartments of Molecular Biology and Biochemistry, Biomedical Engineering, and Chemical Engineering & Materials Science , University of California Irvine , 2218 Natural Sciences I , Irvine , California 92697 , United States.ORCID 0000-0002-6346-8271
Christopher D VanderwalDepartment of Chemistry , University of California Irvine , 1102 Natural Sciences II , Irvine , California 92697 , United States.ORCID 0000-0001-7218-4521
Shiou-Chuan TsaiDepartments of Molecular Biology and Biochemistry, Chemistry, and Pharmaceutical Sciences , University of California Irvine , 2218 Natural Sciences I , Irvine , California 92697 , United States.ORCID 0000-0002-7082-9178
University of California, Irvine · USUniversity of Bristol · GB

Funding

X-ray Absorption Spectroscopy (XAS) pp.711-759P41GM103393 · NIGMS · STANFORD UNIVERSITY · PI HODGSON, KEITH O · 2012 to 2019
$30.6M
Mathematical, Computational and Systems BiologyT32EB009418 · NIBIB · UNIVERSITY OF CALIFORNIA-IRVINE · PI LANDER, ARTHUR D, NIE, QING · 2009 to 2019
$2.4M
The Molecular Basis of Regio-Specificity in Fungal Polyketide SynthaseR01GM100305 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI BURKART, MICHAEL D., TSAI, SHIOU-CHUAN · 2012 to 2015
$1.6M
The Ketoreduction and Cyclization of Aromatic Polyketide BiosynthesisR01GM076330 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI TSAI, SHIOU-CHUAN · 2007 to 2011
$1.3M
Probing and Engineering of Iterative Polyketide SynthaseR01GM127728 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI TSAI, SHIOU-CHUAN, VANDERWAL, CHRISTOPHER D · 2018 to 2021
$1.1M
NIBIB NIH HHS T32 EB009418NIGMS NIH HHS P41 GM103393NIGMS NIH HHS R01 GM076330NIGMS NIH HHS R01 GM100305NIGMS NIH HHS R01 GM127728
6 · The paper itself

Abstract

Polyketides are a large class of bioactive natural products with a wide range of structures and functions. Polyketides are biosynthesized by large, multidomain enzyme complexes termed polyketide synthases (PKSs). One of the primary challenges when studying PKSs is the high reactivity of their poly-β-ketone substrates. This has hampered structural and mechanistic characterization of PKS-polyketide complexes, and, as a result, little is known about how PKSs position the unstable substrates for proper catalysis while displaying high levels of regio- and stereospecificity. As a first step toward a general plan to use oxetanes as carbonyl isosteres to broadly interrogate PKS chemistry, we describe the development and application of an oxetane-based PKS substrate mimic. This enabled the first structural determination of the acyl-enzyme intermediate of a ketosynthase (KS) in complex with an inert extender unit mimic. The crystal structure, in combination with molecular dynamics simulations, led to a proposed mechanism for the unique activity of DpsC, the priming ketosynthase for daunorubicin biosynthesis. The successful application of an oxetane-based polyketide mimic suggests that this novel class of probes could have wide-ranging applications to the greater biosynthetic community interested in the mechanistic enzymology of iterative PKSs.

Indexed as

Binding SitesEthers, CyclicMolecular ProbesMolecular StructurePolyketidesPolyketide SynthasesSubstrate SpecificityEthers, CyclicMolecular ProbesoxetanePolyketidesPolyketide Synthases

Identifiers

PMID29620883
PMCPMC6625825
OpenAlexW2795498385

What OpenQuestion holds

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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.