Evidence map›Paper›PMID 25331869›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Engineering of an epoxide hydrolase for efficient bioresolution of bulky pharmaco substrates.

Xu-Dong Kong, Shuguang Yuan, Lin Li, She Chen, Jian-He Xu, Jiahai Zhou

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

32 citing papers in PubMed, 92 citations in OpenAlex.

  1. Article
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  7. Epoxide Hydrolases: Multipotential Biocatalysts.International journal of molecular sciences · 2023
    Review
  8. Rational design of enzyme activity and enantioselectivity.Frontiers in bioengineering and biotechnology · 2023
    Review
  9. Article
  10. Article
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  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Plant growth-promoting activities and genomic analysis of the stress-resistantBiotechnology reports (Amsterdam, Netherlands) · 2020
    Article
  18. Directed evolution methods for overcoming trade-offs between protein activity and stability.AIChE journal. American Institute of Chemical Engineers · 2020
    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

6 authors at 3 institutions in 1 country.

Xu-Dong KongState Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China; State Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China; and.
Shuguang YuanState Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China; and.
Lin LiNational Institute of Biological Sciences, Beijing 102206, China.
She ChenNational Institute of Biological Sciences, Beijing 102206, China.
Jian-He XuState Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China; jiahai@mail.sioc.ac.cn jianhexu@ecust.edu.cn.
Jiahai ZhouState Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China; and jiahai@mail.sioc.ac.cn jianhexu@ecust.edu.cn.
Chinese Academy of Sciences · CNNational Institute of Biological Sciences, Beijing · CNEast China University of Science and Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Optically pure epoxides are essential chiral precursors for the production of (S)-propranolol, (S)-alprenolol, and other β-adrenergic receptor blocking drugs. Although the enzymatic production of these bulky epoxides has proven difficult, here we report a method to effectively improve the activity of BmEH, an epoxide hydrolase from Bacillus megaterium ECU1001 toward α-naphthyl glycidyl ether, the precursor of (S)-propranolol, by eliminating the steric hindrance near the potential product-release site. Using X-ray crystallography, mass spectrum, and molecular dynamics calculations, we have identified an active tunnel for substrate access and product release of this enzyme. The crystal structures revealed that there is an independent product-release site in BmEH that was not included in other reported epoxide hydrolase structures. By alanine scanning, two mutants, F128A and M145A, targeted to expand the potential product-release site displayed 42 and 25 times higher activities toward α-naphthyl glycidyl ether than the wild-type enzyme, respectively. These results show great promise for structure-based rational design in improving the catalytic efficiency of industrial enzymes for bulky substrates.

Indexed as

Adrenergic beta-AntagonistsAlprenololAmino Acid SubstitutionBacillus megateriumBacterial ProteinsCrystallography, X-RayEpoxide HydrolasesEpoxy CompoundsMutation, MissenseNaphtholsPropranololAdrenergic beta-AntagonistsAlprenololBacterial ProteinsEpoxide HydrolasesEpoxy Compoundsglycidyl 1-naphthyl etherNaphtholsPropranololbulky substrateepoxide hydrolaseproduct releaseprotein engineeringX-ray crystallography

Identifiers

PMID25331869
PMCPMC4226085
OpenAlexW2056471647

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.