Evidence map›Paper›PMID 26733481›Full record

ArticleJournal of molecular evolution2016

The TIM Barrel Architecture Facilitated the Early Evolution of Protein-Mediated Metabolism.

Aaron David Goldman, Joshua T Beatty, Laura F Landweber

Abstract read
In one paragraph

Article in Journal of molecular evolution, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing 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

47 citing papers in PubMed.

  1. The history of enzyme evolution embedded in metabolism.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Can the origin of biosynthetic routes be explained by a Frankenstein's monster-like spontaneous assembly of prebiotic reactants?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  6. Order of amino acid recruitment into the genetic code resolved by last universal common ancestor's protein domains.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Article
  8. Protein Fold Usages in Ribosomes: Another Glance to the Past.International journal of molecular sciences · 2024
    Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Electron transport chains as a window into the earliest stages of evolution.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  14. Article
  15. Design and optimization of enzymatic activity in a de novo β-barrel scaffold.Protein science : a publication of the Protein Society · 2022
    Article
  16. Review
  17. Article
  18. 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

3 authors.

Aaron David GoldmanDepartment of Biology, Oberlin College, Oberlin, OH, 44074, USA. agoldman@oberlin.edu.
Joshua T BeattyDepartment of Biology, Oberlin College, Oberlin, OH, 44074, USA.
Laura F LandweberDepartment of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, 08544, USA. lfl@princeton.edu.

Funding

UNDERSTANDING COMPLEX GENE EDITING SYSTEMS IN PROTISTSR01GM059708 · NIGMS · PRINCETON UNIVERSITY · PI LANDWEBER, LAURA F · 1999 to 2016
$4.4M
NIGMS NIH HHS GM59708NIGMS NIH HHS R01 GM059708
6 · The paper itself

Abstract

The triosephosphate isomerase (TIM) barrel protein fold is a structurally repetitive architecture that is present in approximately 10% of all enzymes. It is generally assumed that this ubiquity in modern proteomes reflects an essential historical role in early protein-mediated metabolism. Here, we provide quantitative and comparative analyses to support several hypotheses about the early importance of the TIM barrel architecture. An information theoretical analysis of protein structures supports the hypothesis that the TIM barrel architecture could arise more easily by duplication and recombination compared to other mixed α/β structures. We show that TIM barrel enzymes corresponding to the most taxonomically broad superfamilies also have the broadest range of functions, often aided by metal and nucleotide-derived cofactors that are thought to reflect an earlier stage of metabolic evolution. By comparison to other putatively ancient protein architectures, we find that the functional diversity of TIM barrel proteins cannot be explained simply by their antiquity. Instead, the breadth of TIM barrel functions can be explained, in part, by the incorporation of a broad range of cofactors, a trend that does not appear to be shared by proteins in general. These results support the hypothesis that the simple and functionally general TIM barrel architecture may have arisen early in the evolution of protein biosynthesis and provided an ideal scaffold to facilitate the metabolic transition from ribozymes, peptides, and geochemical catalysts to modern protein enzymes.

Indexed as

Evolution, MolecularProtein Structure, SecondaryArchaeaBacteriaConsensus SequenceEnzymesEukaryotaGene DuplicationProteomeTriose-Phosphate IsomeraseEnzymesProteomeTriose-Phosphate IsomeraseLUCAPrebiotic chemistryRNA–protein worldRNA worldTIM barrel

Identifiers

PMID26733481
PMCPMC4709378

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.