Evidence map›Paper›PMID 19833867›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Selective oxidation of carbolide C-H bonds by an engineered macrolide P450 mono-oxygenase.

Shengying Li, Mani Raj Chaulagain, Allison R Knauff, Larissa M Podust, John Montgomery, David H Sherman

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
–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

45 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Epoxyalcohol Synthase Branch of Lipoxygenase Cascade.Current issues in molecular biology · 2024
    Review
  5. Article
  6. Cytochrome P450Angewandte Chemie (International ed. in English) · 2022
    Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Selective oxidation of aliphatic C-H bonds in alkylphenols by a chemomimetic biocatalytic system.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  20. 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

6 authors.

Shengying LiDepartment of Medicinal Chemistry, Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA.
Mani Raj Chaulagain
Allison R Knauff
Larissa M Podust
John Montgomery
David H Sherman

Funding

NEW CYCLIZATION METHODS AND MULTICOMPONENT COUPLINGSR01GM057014 · NIGMS · WAYNE STATE UNIVERSITY · PI MONTGOMERY, JOHN · 1998 to 2014
$4.3M
Structure and Engineering of Natural Product Cytochrome P450 EnzymesR01GM078553 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MONTGOMERY, JOHN, PODUST, LARISSA M. · 2007 to 2015
$2.9M
NIGMS NIH HHS R01 GM057014NIGMS NIH HHS R01 GM078553NIGMS NIH HHS R01GM078553NIGMS NIH HHS R01 GM57014
6 · The paper itself

Abstract

Regio- and stereoselective oxidation of an unactivated C-H bond remains a central challenge in organic chemistry. Considerable effort has been devoted to identifying transition metal complexes, biological catalysts, or simplified mimics, but limited success has been achieved. Cytochrome P450 mono-oxygenases are involved in diverse types of regio- and stereoselective oxidations, and represent a promising biocatalyst to address this challenge. The application of this class of enzymes is particularly significant if their substrate spectra can be broadened, selectivity controlled, and reactions catalyzed in the absence of expensive heterologous redox partners. In this study, we engineered a macrolide biosynthetic P450 mono-oxygenase PikC (PikC(D50N)-RhFRED) with remarkable substrate flexibility, significantly increased activity compared to wild-type enzyme, and self-sufficiency. By harnessing its unique desosamine-anchoring functionality via a heretofore under-explored "substrate engineering" strategy, we demonstrated the ability of PikC to hydroxylate a series of carbocyclic rings linked to the desosamine glycoside via an acetal linkage (referred to as "carbolides") in a regioselective manner. Complementary analysis of a number of high-resolution enzyme-substrate cocrystal structures provided significant insights into the function of the aminosugar-derived anchoring group for control of reaction site selectivity. Moreover, unexpected biological activity of a select number of these carbolide systems revealed their potential as a previously unrecorded class of antibiotics.

Indexed as

Protein EngineeringAmino SugarsAnti-Bacterial AgentsBacteriaBinding SitesBiocatalysisChromatography, LiquidCycloparaffinsCytochrome P-450 Enzyme SystemEnzyme AssaysHydroxylationMacrolidesMass SpectrometryOxidation-ReductionStatic ElectricityStereoisomerismAmino SugarsAnti-Bacterial AgentsCycloparaffinsCytochrome P-450 Enzyme SystemdesosamineMacrolidesPikC cytochrome P450 hydroxylase

Identifiers

PMID19833867
PMCPMC2774028

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.