Evidence map›Paper›PMID 21460845›Full record

ArticleNature structural & molecular biology2011

Single-molecule paleoenzymology probes the chemistry of resurrected enzymes.

Raul Perez-Jimenez, Alvaro Inglés-Prieto, Zi-Ming Zhao, Inmaculada Sanchez-Romero, Jorge Alegre-Cebollada, Pallav Kosuri, Sergi Garcia-Manyes, T Joseph Kappock, Masaru Tanokura, Arne Holmgren and 3 more

Abstract read
In one paragraph

Article in Nature structural & molecular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
–field-weighted citation impact
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

86 citing papers in PubMed.

  1. Ancient enzymes, new biotechnology applications.Nature reviews. Molecular cell biology · 2026
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  8. Review
  9. Functional recoding ofFrontiers in plant science · 2025
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
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  18. Review
  19. Active site center redesign increases protein stability preserving catalysis in thioredoxin.Protein science : a publication of the Protein Society · 2022
    Article
  20. Article

26 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

13 authors.

Raul Perez-JimenezDepartment of Biological Sciences, Columbia University, New York, New York, USA. raulpjc@biology.columbia.edu
Alvaro Inglés-Prieto
Zi-Ming Zhao
Inmaculada Sanchez-Romero
Jorge Alegre-Cebollada
Pallav Kosuri
Sergi Garcia-Manyes
T Joseph Kappock
Masaru Tanokura
Arne Holmgren
Jose M Sanchez-Ruiz
Eric A Gaucher
Julio M Fernandez

Funding

Single Molecule Studies of Titin ElasticityR01HL061228 · NHLBI · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI FERNANDEZ, JULIO M · 1999 to 2017
$7.4M
Nanomechanics of the extracellular matrixR01HL066030 · NHLBI · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI FERNANDEZ, JULIO M · 2001 to 2013
$5.0M
NHLBI NIH HHS HL061228NHLBI NIH HHS HL066030NHLBI NIH HHS R01 HL061228NHLBI NIH HHS R01 HL066030
6 · The paper itself

Abstract

It is possible to travel back in time at the molecular level by reconstructing proteins from extinct organisms. Here we report the reconstruction, based on sequence predicted by phylogenetic analysis, of seven Precambrian thioredoxin enzymes (Trx) dating back between ~1.4 and ~4 billion years (Gyr). The reconstructed enzymes are up to 32 °C more stable than modern enzymes, and the oldest show markedly higher activity than extant ones at pH 5. We probed the mechanisms of reduction of these enzymes using single-molecule force spectroscopy. From the force dependency of the rate of reduction of an engineered substrate, we conclude that ancient Trxs use chemical mechanisms of reduction similar to those of modern enzymes. Although Trx enzymes have maintained their reductase chemistry unchanged, they have adapted over 4 Gyr to the changes in temperature and ocean acidity that characterize the evolution of the global environment from ancient to modern Earth.

Indexed as

Evolution, MolecularPhylogenyBacterial ProteinsClimate ChangeEnzyme StabilityExtinction, BiologicalHydrogen-Ion ConcentrationKineticsOxidation-ReductionSequence Analysis, DNAThioredoxinsBacterial ProteinsThioredoxins

Identifiers

PMID21460845
PMCPMC3087858

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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.