Evidence map›Paper›PMID 23972854›Full record

ArticleBiophysical journal2013

Investigating models of protein function and allostery with a widespread mutational analysis of a light-activated protein.

Josiah P Zayner, Chloe Antoniou, Alexander R French, Ronald J Hause, Tobin R Sosnick

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.5field-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

32 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. Hydraulic Activation of the AsLOV2 Photoreceptor.bioRxiv : the preprint server for biology · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Machine learning and protein allostery.Trends in biochemical sciences · 2023
    Review
  7. Residue alterations within a conserved hydrophobic pocket influence light, oxygen, voltage photoreceptor dark recovery.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2023
    Article
  8. Article
  9. Article
  10. The roles of highly conserved, non-catalytic residues in class A β-lactamases.Protein science : a publication of the Protein Society · 2022
    Article
  11. Article
  12. Dynamics of hydrogen bonds in the secondary structures of allosteric proteinComputational and structural biotechnology journal · 2022
    Article
  13. Article
  14. Article
  15. Engineering Photosensory Modules of Non-Opsin-Based Optogenetic Actuators.International journal of molecular sciences · 2020
    Review
  16. Review
  17. Article
  18. Directly light-regulated binding of RGS-LOV photoreceptors to anionic membrane phospholipids.Proceedings of the National Academy of Sciences of the United States of America · 2018
    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

5 authors at 1 institution in 1 country.

Josiah P ZaynerDepartment of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL, USA.
Chloe Antoniou
Alexander R French
Ronald J Hause
Tobin R Sosnick
University of Chicago · US

Funding

Molecular And Cellular Biology Training ProgramT32GM007183 · NIGMS · UNIVERSITY OF CHICAGO · PI GLICK, BENJAMIN S, RICE, PHOEBE A · 1985 to 2021
$23.9M
PREDOCTORAL TRAINING IN GENETICS AND REGULATIONT32GM007197 · NIGMS · UNIVERSITY OF CHICAGO · PI ROTHMAN-DENES, LUCIA B. B · 1985 to 2020
$17.0M
Spatial and temporal control of cell behavior with a genetically-encoded photoswiR01GM088668 · NIGMS · UNIVERSITY OF CHICAGO · PI GLOTZER, MICHAEL A., SOSNICK, TOBIN R · 2009 to 2012
$1.4M
NIGMS NIH HHS 5T32GM007183-34NIGMS NIH HHS GM088668NIGMS NIH HHS R01 GM088668NIGMS NIH HHS T32 GM007183NIGMS NIH HHS T32 GM007197NIGMS NIH HHS T32 GM07197
6 · The paper itself

Abstract

To investigate the relationship between a protein's sequence and its biophysical properties, we studied the effects of more than 100 mutations in Avena sativa light-oxygen-voltage domain 2, a model protein of the Per-Arnt-Sim family. The A. sativa light-oxygen-voltage domain 2 undergoes a photocycle with a conformational change involving the unfolding of the terminal helices. Whereas selection studies typically search for winners in a large population and fail to characterize many sites, we characterized the biophysical consequences of mutations throughout the protein using NMR, circular dichroism, and ultraviolet/visible spectroscopy. Despite our intention to introduce highly disruptive substitutions, most had modest or no effect on function, and many could even be considered to be more photoactive. Substitutions at evolutionarily conserved sites can have minimal effect, whereas those at nonconserved positions can have large effects, contrary to the view that the effects of mutations, especially at conserved positions, are predictable. Using predictive models, we found that the effects of mutations on biophysical function and allostery reflect a complex mixture of multiple characteristics including location, character, electrostatics, and chemistry.

Indexed as

AvenaLightModels, MolecularMutationAllosteric RegulationAmino Acid SequenceConserved SequenceEvolution, MolecularMolecular Sequence DataPlant ProteinsProtein Structure, TertiaryStructure-Activity RelationshipPlant Proteins

Identifiers

PMID23972854
PMCPMC3752136
OpenAlexW2118820287

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.