Evidence map›Paper›PMID 32317325›Full record

ArticlemBio2020

Conductance Mechanisms of Rapidly Desensitizing Cation Channelrhodopsins from Cryptophyte Algae.

Oleg A Sineshchekov, Elena G Govorunova, Hai Li, Yumei Wang, Michael Melkonian, Gane K-S Wong, Leonid S Brown, John L Spudich

Open access · goldAbstract read
In one paragraph

Article in mBio, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.6field-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

20 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Multicolor photoreactions of the red light-activated channelrhodopsin Chrimson.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Apusomonad rhodopsins: A new family of ultraviolet to blue light-absorbing rhodopsin channels.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Sequential absorption of two photons creates a bistable form of RubyACR responsible for its strong desensitization.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  11. Potassium-selective channelrhodopsins.Biophysics and physicobiology · 2023
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Microbial Rhodopsins.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  18. Article
  19. Article
  20. 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

8 authors at 4 institutions in 4 countries.

Oleg A SineshchekovCenter for Membrane Biology, Department of Biochemistry & Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas, USA.
Elena G GovorunovaCenter for Membrane Biology, Department of Biochemistry & Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas, USA.
Hai LiCenter for Membrane Biology, Department of Biochemistry & Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas, USA.ORCID 0000-0002-3969-6709
Yumei WangCenter for Membrane Biology, Department of Biochemistry & Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas, USA.
Michael MelkonianInstitute for Plant Sciences, Department of Biology, University of Cologne, Cologne, Germany.
Gane K-S WongDepartment of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.
Leonid S BrownDepartment of Physics and Biophysics Interdepartmental Group, University of Guelph, Guelph, Ontario, Canada.
John L SpudichCenter for Membrane Biology, Department of Biochemistry & Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas, USA john.l.spudich@uth.tmc.edu.
The University of Texas Health Science Center at Houston · USBGI Group (China) · CNUniversity of Cologne · DEUniversity of Guelph · CA

Funding

Structure/Function of Microbial Sensory RhodopsinsR01GM027750 · NIGMS · YESHIVA UNIVERSITY · PI SPUDICH, JOHN LEE · 1985 to 2020
$6.6M
NIGMS NIH HHS R01 GM027750
6 · The paper itself

Abstract

Channelrhodopsins guide algal phototaxis and are widely used as optogenetic probes for control of membrane potential with light. "Bacteriorhodopsin-like" cation channelrhodopsins (BCCRs) from cryptophytes differ in primary structure from other CCRs, lacking usual residues important for their cation conductance. Instead, the sequences of BCCR match more closely those of rhodopsin proton pumps, containing residues responsible for critical proton transfer reactions. We report 19 new BCCRs which, together with the earlier 6 known members of this family, form three branches (subfamilies) of a phylogenetic tree. Here, we show that the conductance mechanisms in two subfamilies differ with respect to involvement of the homolog of the proton donor in rhodopsin pumps. Two BCCRs from the genus

Indexed as

Ion Channel GatingCationsChannelrhodopsinsCryptophytaElectrophysiological PhenomenaGene Expression RegulationMembrane PotentialsMutagenesisOptogeneticsPatch-Clamp TechniquesPhotochemical ProcessesPhylogenySpectrum AnalysisCationsChannelrhodopsinschannelrhodopsinsion channelsoptogeneticspatch clampphotobiology

Identifiers

PMID32317325
PMCPMC7175095
OpenAlexW3016981607

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.