Evidence map›Paper›PMID 22406525›Full record

ArticleJournal of molecular biology2012

The amino-terminal helix modulates light-activated conformational changes in AsLOV2.

Josiah P Zayner, Chloe Antoniou, Tobin R Sosnick

Abstract read
In one paragraph

Article in Journal of molecular biology, 2012. 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. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Hydraulic Activation of the AsLOV2 Photoreceptor.bioRxiv : the preprint server for biology · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Design of AsLOV2 domain as a carrier of light-induced dissociable FMN photosensitizer.Protein science : a publication of the Protein Society · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Shining a light on RhoA: Optical control of cell contractility.The international journal of biochemistry & cell biology · 2023
    Review
  19. 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

3 authors.

Josiah P ZaynerDepartment of Biochemistry and Molecular Biology, The University of Chicago, Chicago, IL 60637, USA.
Chloe Antoniou
Tobin R Sosnick

Funding

Molecular And Cellular Biology Training ProgramT32GM007183 · NIGMS · UNIVERSITY OF CHICAGO · PI GLICK, BENJAMIN S, RICE, PHOEBE A · 1985 to 2021
$23.9M
Kinetic studies of protein foldingR01GM055694 · NIGMS · UNIVERSITY OF CHICAGO · PI SOSNICK, TOBIN R · 2001 to 2022
$7.6M
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 GM055694NIGMS NIH HHS R01 GM088668NIGMS NIH HHS T32 GM007183
6 · The paper itself

Abstract

The mechanism of light-triggered conformational change and signaling in light-oxygen-voltage (LOV) domains remains elusive in spite of extensive investigation and their use in optogenetic studies. The LOV2 domain of Avenasativa phototropin 1 (AsLOV2), a member of the Per-Arnt-Sim (PAS) family, contains a flavin mononucleotide chromophore that forms a covalent bond with a cysteine upon illumination. This event leads to the release of the carboxy-terminal Jα helix, the biological output signal. Using mutational analysis, circular dichroism, and NMR, we find that the largely ignored amino-terminal helix is a control element in AsLOV2's light-activated conformational change. We further identify a direct amino-to-carboxy-terminal "input-output" signaling pathway. These findings provide a framework to rationalize the LOV domain architecture, as well as the signaling mechanisms in both isolated and tandem arrangements of PAS domains. This knowledge can be applied in engineering LOV-based photoswitches, opening up new design strategies and improving existing ones.

Indexed as

AvenaFlavin MononucleotideLightModels, MolecularMolecular Dynamics SimulationPhototropinsProtein Structure, SecondaryProtein Structure, TertiarySignal TransductionFlavin MononucleotidePhototropins

Identifiers

PMID22406525
PMCPMC3338903

What OpenQuestion holds

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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.