Evidence map›Paper›PMID 31871208›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

Analysis of allosteric communication in a multienzyme complex by ancestral sequence reconstruction.

Michael Schupfner, Kristina Straub, Florian Busch, Rainer Merkl, Reinhard Sterner

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Origins of allostery in vertebrate hemoglobin evolution.bioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Functional and structural characterization of FProtein science : a publication of the Protein Society · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. A tale of two copies: Evolutionary trajectories of moth pheromone receptors.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  12. Simple mechanisms for the evolution of protein complexity.Protein science : a publication of the Protein Society · 2022
    Review
  13. Article
  14. Article
  15. Design and engineering of allosteric communications in proteins.Current opinion in structural biology · 2022
    Review
  16. Article
  17. Allosteric regulation of substrate channeling:Frontiers in molecular biosciences · 2022
    Review
  18. ACS catalysis · 2021
    Article
  19. Article
  20. Tryptophan Synthase: Biocatalyst Extraordinaire.Chembiochem : a European journal of chemical biology · 2021
    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

5 authors at 1 institution in 1 country.

Michael SchupfnerInstitute of Biophysics and Physical Biochemistry, University of Regensburg, D-93053 Regensburg, Germany.
Kristina StraubInstitute of Biophysics and Physical Biochemistry, University of Regensburg, D-93053 Regensburg, Germany.
Florian BuschInstitute of Biophysics and Physical Biochemistry, University of Regensburg, D-93053 Regensburg, Germany.
Rainer MerklInstitute of Biophysics and Physical Biochemistry, University of Regensburg, D-93053 Regensburg, Germany.ORCID 0000-0002-3521-2957
Reinhard SternerInstitute of Biophysics and Physical Biochemistry, University of Regensburg, D-93053 Regensburg, Germany reinhard.sterner@ur.de.ORCID 0000-0001-8177-8460
University of Regensburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tryptophan synthase (TS) is a heterotetrameric αββα complex. It is characterized by the channeling of the reaction intermediate indole and the mutual activation of the α-subunit TrpA and the β-subunit TrpB via a complex allosteric network. We have analyzed this allosteric network by means of ancestral sequence reconstruction (ASR), which is an in silico method to resurrect extinct ancestors of modern proteins. Previously, the sequences of TrpA and TrpB from the last bacterial common ancestor (LBCA) have been computed by means of ASR and characterized. LBCA-TS is similar to modern TS by forming a αββα complex with indole channeling taking place. However, LBCA-TrpA allosterically decreases the activity of LBCA-TrpB, whereas, for example, the modern ncTrpA from

Indexed as

Computational BiologyExtinction, BiologicalAllosteric RegulationAmino Acid SequenceBacterial ProteinsMolecular Dynamics SimulationMutagenesis, Site-DirectedOceanospirillaceaePhylogenyProtein SubunitsSequence AlignmentStructural Homology, ProteinTryptophanTryptophan SynthaseBacterial ProteinsProtein SubunitsTryptophanTryptophan Synthaseallosteryancestral sequence reconstructiontryptophan synthasevertical approach

Identifiers

PMID31871208
PMCPMC6955334
OpenAlexW2997096165

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.