Evidence map›Paper›PMID 15118093›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

Directed evolution of protein enzymes using nonhomologous random recombination.

Joshua A Bittker, Brian V Le, Jane M Liu, David R Liu

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

15 citing papers in PubMed, 59 citations in OpenAlex.

  1. Modern methods for laboratory diversification of biomolecules.Current opinion in chemical biology · 2017
    Review
  2. Methods for the directed evolution of proteins.Nature reviews. Genetics · 2015
    Review
  3. Article
  4. Article
  5. Design, selection, and characterization of a split chorismate mutase.Protein science : a publication of the Protein Society · 2010
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Laboratory-directed protein evolution.Microbiology and molecular biology reviews : MMBR · 2005
    Review
  13. Simultaneous optimization of enzyme activity and quaternary structure by directed evolution.Protein science : a publication of the Protein Society · 2005
    Article
  14. Evolution of highly active enzymes by homology-independent recombination.Proceedings of the National Academy of Sciences of the United States of America · 2005
    Article
  15. 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

4 authors at 1 institution in 1 country.

Joshua A BittkerDepartment of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 01238, USA.
Brian V Le
Jane M Liu
David R Liu
Harvard University · US

Funding

Expanding the Scope of Protein EvolutionR01GM065400 · NIGMS · HARVARD UNIVERSITY · PI LIU, DAVID R · 2002 to 2010
$2.5M
NIGMS NIH HHS R01 GM065400NIGMS NIH HHS R01 GM65400-01
6 · The paper itself

Abstract

We recently reported the development of nonhomologous random recombination (NRR) as a method for nucleic acid diversification and applied NRR to the evolution of DNA aptamers. Here, we describe a modified method, protein NRR, that enables proteins to access diversity previously difficult or impossible to generate. We investigated the structural plasticity of protein folds and the ability of helical motifs to function in different contexts by applying protein NRR and in vivo selection to the evolution of chorismate mutase (CM) enzymes. Functional CM mutants evolved using protein NRR contained many insertions, deletions, and rearrangements. The distribution of these changes was not random but clustered in certain regions of the protein. Topologically rearranged but functional enzymes also emerged from these studies, indicating that multiple connectivities can accommodate a functional CM active site and demonstrating the ability to generate new domain connectivities through protein NRR. Protein NRR was also used to randomly recombine CM and fumarase, an unrelated but also alpha-helical protein. Whereas the resulting library contained fumarase fragments in many contexts before functional selection, library members surviving selection for CM activity invariably contained a CM core with fumarase sequences found only at the termini or in one loop. These results imply that internal helical fragments cannot be swapped between these proteins without the loss of nearly all CM activity. Our findings suggest that protein NRR will be useful in probing the functional requirements of enzymes and in the creation of new protein topologies.

Indexed as

Directed Molecular EvolutionChorismate MutaseEscherichia coliMutationProtein Structure, TertiaryRecombinant Fusion ProteinsChorismate MutaseRecombinant Fusion Proteins

Identifiers

PMID15118093
PMCPMC406457
OpenAlexW2134132854

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.