Evidence map›Paper›PMID 18553928›Full record

ArticleBiochemistry2008

Light activation of the LOV protein vivid generates a rapidly exchanging dimer.

Brian D Zoltowski, Brian R Crane

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed
14.3field-weighted citation impact, top 1% 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

99 citing papers in PubMed, 182 citations in OpenAlex.

  1. Article
  2. Signaling mechanism of the transmembrane energy receptor Aer.bioRxiv : the preprint server for biology · 2026
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  15. Dimerization activates the Inversin complex inMolecular biology of the cell · 2024
    Article
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  17. Article
  18. Article
  19. Review
  20. Review

39 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

2 authors at 1 institution in 1 country.

Brian D ZoltowskiDepartment of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA.
Brian R Crane
Cornell University · US

Funding

Structure and Function of Circadian Clock Light SensorsR01GM079679 · NIGMS · CORNELL UNIVERSITY · PI CRANE, BRIAN R · 2007 to 2016
$3.1M
NIGMS NIH HHS R01 GM079679
6 · The paper itself

Abstract

The fungal photoreceptor Vivid (VVD) plays an important role in the adaptation of blue-light responses in Neurospora crassa. VVD, an FAD-binding LOV (light, oxygen, voltage) protein, couples light-induced cysteinyl adduct formation at the flavin ring to conformational changes in the N-terminal cap (Ncap) of the VVD PAS domain. Size-exclusion chromatography (SEC), equilibrium ultracentrifugation, and static and dynamic light scattering show that these conformational changes generate a rapidly exchanging VVD dimer, with an expanded hydrodynamic radius. A three-residue N-terminal beta-turn that assumes two different conformations in a crystal structure of a VVD C71V variant is essential for light-state dimerization. Residue substitutions at a critical hinge between the Ncap and PAS core can inhibit or enhance dimerization, whereas a Tyr to Trp substitution at the Ncap-PAS interface stabilizes the light-state dimer. Cross-linking through engineered disulfides indicates that the light-state dimer differs considerably from the dark-state dimer found in VVD crystal structures. These results verify the role of Ncap conformational changes in gating the photic response of N. crassa and indicate that LOV-LOV homo- or heterodimerization may be a mechanism for regulating light-activated gene expression.

Indexed as

LightAmino Acid SequenceChromatography, GelCrystallography, X-RayDimerizationFungal ProteinsKineticsModels, MolecularMolecular Sequence DataMutant ProteinsMutationNeurospora crassaProtein Structure, SecondarySequence AlignmentFungal ProteinsMutant ProteinsVVD protein, Neurospora crassa

Identifiers

PMID18553928
PMCPMC2743001
OpenAlexW1967506013

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.