Evidence map›Paper›PMID 31134138›Full record

ArticleACS catalysis2019

Origin of high stereocontrol in olefin cyclopropanation catalyzed by an engineered carbene transferase.

Antonio Tinoco, Yang Wei, John-Paul Bacik, Daniela M Carminati, Eric J Moore, Nozomi Ando, Yong Zhang, Rudi Fasan

Open access · greenAbstract read
In one paragraph

Article in ACS catalysis, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.9field-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

35 citing papers in PubMed, 86 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

8 authors at 3 institutions in 1 country.

Antonio TinocoDepartment of Chemistry, University of Rochester, Rochester, NY 14627, United States.
Yang WeiDepartment of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, NJ 07030, United States.
John-Paul BacikDepartment of Chemistry, Princeton University, Princeton, NJ 08544, United States.
Daniela M CarminatiDepartment of Chemistry, University of Rochester, Rochester, NY 14627, United States.
Eric J MooreDepartment of Chemistry, University of Rochester, Rochester, NY 14627, United States.
Nozomi AndoDepartment of Chemistry, Princeton University, Princeton, NJ 08544, United States.
Yong ZhangDepartment of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, NJ 07030, United States.
Rudi FasanDepartment of Chemistry, University of Rochester, Rochester, NY 14627, United States.
University of Rochester · USPrinceton University · USStevens Institute of Technology · US

Funding

Training and OutreachP30GM124166 · NIGMS · CORNELL UNIVERSITY · PI RICHARD A. CERIONE · 2019 to 2026
$28.3M
Overall (pp. 40-62)P41GM103485 · NIGMS · CORNELL UNIVERSITY · PI CERIONE, RICHARD A. · 2012 to 2018
$15.5M
Selective P450 Oxidation Catalysts for Synthesis of Bioactive MoleculesR01GM098628 · NIGMS · UNIVERSITY OF TEXAS DALLAS · PI FASAN, RUDI · 2012 to 2024
$4.7M
Protein Allostery and Catalysis Beyond Bragg DiffractionR35GM124847 · NIGMS · PRINCETON UNIVERSITY · PI Nozomi Ando · 2017 to 2026
$4.1M
NIH Training Grant in the Chemistry-Biology InterfaceT32GM118283 · NIGMS · UNIVERSITY OF ROCHESTER · PI BREN, KARA L., FASAN, RUDI · 2017 to 2021
$850k
NIGMS NIH HHS P30 GM124166NIGMS NIH HHS P41 GM103485NIGMS NIH HHS R01 GM098628NIGMS NIH HHS R35 GM124847NIGMS NIH HHS T32 GM118283
6 · The paper itself

Abstract

Recent advances in metalloprotein engineering have led to the development of a myoglobin-based catalyst, Mb(H64V,V68A), capable of promoting the cyclopropanation of vinylarenes with high efficiency and high diastereo- and enantioselectivity. Whereas many enzymes evolved in nature often exhibit catalytic proficiency and exquisite stereoselectivity, how these features are achieved for a non-natural reaction has remained unclear. In this work, the structural determinants responsible for chiral induction and high stereocontrol in Mb(H64V,V68A)-catalyzed cyclopropanation were investigated via a combination of crystallographic, computational (DFT), and structure-activity analyses. Our results show the importance of steric complementarity and non-covalent interactions involving first-sphere active site residues, heme-carbene, and the olefin substrate, in dictating the stereochemical outcome of the cyclopropanation reaction. High stereocontrol is achieved through two major mechanisms. First, by enforcing a specific conformation of the heme-bound carbene within the active site. Second, by controlling the geometry of attack of the olefin on the carbene via steric occlusion, attractive van der Waals forces and protein-mediated π-π interactions with the olefin substrate. These insights could be leveraged to expand the substrate scope of the myoglobin-based cyclopropanation catalyst toward non-activated olefins and to increase its cyclopropanation activity in the presence of a bulky α-diazo-ester. This work sheds first light into the origin of enzyme-catalyzed enantioselective cyclopropanation, furnishing a mechanistic framework for both understanding the reactivity of current systems and guiding the future development of biological catalysts for this class of synthetically important, abiotic transformations.

Indexed as

biocatalytic carbene transferDensity Functional Theoryenantioselective cyclopropanationheme carbenesmyoglobinOlefin cyclopropanation

Identifiers

PMID31134138
PMCPMC6534153
OpenAlexW2908290021

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.