Evidence map›Paper›PMID 12505981›Full record

ArticleThe EMBO journal2003

Directed evolution of an extremely fast phosphotriesterase by in vitro compartmentalization.

Andrew D Griffiths, Dan S Tawfik

Open access · greenAbstract read
In one paragraph

Article in The EMBO journal, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
6.3field-weighted citation impact, top 3% 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

76 citing papers in PubMed, 318 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Autonomous ribosome biogenesis in vitro.Nature communications · 2025
    Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Engineering Enzymes for Environmental Sustainability.Angewandte Chemie (International ed. in English) · 2023
    Review
  10. Engineering Enzymes for Environmental Sustainability.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2023
    Review
  11. Article
  12. Review
  13. Article
  14. Progresses in Cell-Free In Vitro Evolution.Advances in biochemical engineering/biotechnology · 2023
    Review
  15. Article
  16. Review
  17. Review
  18. Droplet Microfluidics and Directed Evolution of Enzymes: An Intertwined Journey.Angewandte Chemie (International ed. in English) · 2021
    Review
  19. Directed Evolution Methods for Enzyme Engineering.Molecules (Basel, Switzerland) · 2021
    Review
  20. Article

16 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Andrew D GriffithsMRC Laboratory of Molecular Biology, Cambridge CB2 2QH, UK. griff@mrc-lmb.cam.ac.uk
Dan S Tawfik
MRC Laboratory of Molecular Biology · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We describe the selection of a phosphotriesterase with a very fast k(cat) (over 10(5) s(-1)), 63 times higher than the already very efficient wild-type enzyme. The enzyme was selected from a library of 3.4 x 10(7) mutated phosphotriesterase genes using a novel strategy based on linking genotype and phenotype by in vitro compartmentalization (IVC) using water-in-oil emulsions. First, microbeads, each displaying a single gene and multiple copies of the encoded protein, are formed by compartmentalized in vitro translation. These microbeads can then be selected for catalysis or binding. To select for catalysis the microbeads are re-emulsified in a reaction buffer of choice with a soluble substrate. The product and any unreacted substrate are coupled to the beads when the reaction is finished. Product-coated beads, displaying active enzymes and the genes that encode them, are detected with anti-product antibodies and selected using flow cytometry. This completely in vitro process selects for all enzymatic features simultaneously (substrate recognition, product formation, rate acceleration and turnover) and single enzyme molecules can be detected.

Indexed as

Directed Molecular EvolutionAmino Acid SequenceAryldialkylphosphataseBase SequenceBinding SitesDNA PrimersEsterasesFlavobacteriumKineticsMolecular Sequence DataMutagenesisPeptide LibraryPolymerase Chain ReactionProtein ConformationRecombinant ProteinsAryldialkylphosphataseDNA PrimersEsterasesPeptide LibraryRecombinant Proteins

Identifiers

PMID12505981
PMCPMC140064
OpenAlexW2047458942

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.