Evidence map›Paper›PMID 31324776›Full record

ArticleNature communications2019

Artificial cysteine-lipases with high activity and altered catalytic mechanism created by laboratory evolution.

Yixin Cen, Warispreet Singh, Mamatjan Arkin, Thomas S Moody, Meilan Huang, Jiahai Zhou, Qi Wu, Manfred T Reetz

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
4.0field-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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 97 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Papain-like cysteine proteases inFrontiers in plant science · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Structural Insight into the Catalytic Mechanisms of an L-Sorbosone Dehydrogenase.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. The Nϵ-Rule for Serine, but Not Cysteine Catalytic Triads.Angewandte Chemie (International ed. in English) · 2022
    Article
  19. Review
  20. Review
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 5 institutions in 3 countries.

Yixin CenDepartment of Chemistry, Zhejiang University, 310027, Hangzhou, China.
Warispreet SinghSchool of Chemistry and Chemical Engineering, Queen's University, Belfast, Northern Ireland, BT9 5AG, UK.ORCID http://orcid.org/0000-0001-5166-1923
Mamatjan ArkinDepartment of Chemistry, Zhejiang University, 310027, Hangzhou, China.
Thomas S MoodyDepartment of Biocatalysis and Isotope Chemistry, Almac Sciences, Craigavon, Northern Ireland, BT63 5QD, UK.
Meilan HuangSchool of Chemistry and Chemical Engineering, Queen's University, Belfast, Northern Ireland, BT9 5AG, UK. m.huang@qub.ac.uk.
Jiahai ZhouState Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 200032, Shanghai, China. jiahai@mail.sioc.ac.cn.
Qi WuDepartment of Chemistry, Zhejiang University, 310027, Hangzhou, China. wuqi1000@163.com.
Manfred T ReetzMax-Planck-Institut für Kohlenforschung, 45470, Mülheim an der Ruhr, Germany. reetz@mpi-muelheim.mpg.de.
Chinese Academy of Sciences · CNQueen's University Belfast · GBZhejiang University · CNAlmac (United Kingdom) · GBPhilipps University of Marburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Engineering artificial enzymes with high activity and catalytic mechanism different from naturally occurring enzymes is a challenge in protein design. For example, many attempts have been made to obtain active hydrolases by introducing a Ser → Cys exchange at the respective catalytic triads, but this generally induced a breakdown of activity. We now report that this long-standing dogma no longer pertains, provided additional mutations are introduced by directed evolution. By employing Candida antarctica lipase B (CALB) as the model enzyme with the Ser-His-Asp catalytic triad, a highly active cysteine-lipase having a Cys-His-Asp catalytic triad and additional mutations W104V/A281Y/A282Y/V149G can be evolved, showing a 40-fold higher catalytic efficiency than wild-type CALB in the hydrolysis of 4-nitrophenyl benzoate, and tolerating bulky substrates. Crystal structures, kinetics, MD simulations and QM/MM calculations reveal dynamic features and explain all results, including the preference of a two-step mechanism involving the zwitterionic pair Cys105

Indexed as

Binding SitesCandidaCatalysisCatalytic DomainCrystallography, X-RayCysteineEnzyme ActivationFungal ProteinsHydrolysisKineticsLipaseModels, MolecularMutationProtein ConformationProtein EngineeringSubstrate SpecificityCysteineFungal ProteinsLipaselipase B, Candida antarctica

Identifiers

PMID31324776
PMCPMC6642262
OpenAlexW2948412626

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LicenceCC BY
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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.