Evidence map›Paper›PMID 24706784›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Functional characterization of flavobacteria rhodopsins reveals a unique class of light-driven chloride pump in bacteria.

Susumu Yoshizawa, Yohei Kumagai, Hana Kim, Yoshitoshi Ogura, Tetsuya Hayashi, Wataru Iwasaki, Edward F DeLong, Kazuhiro Kogure

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
8.8field-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

80 citing papers in PubMed, 166 citations in OpenAlex.

  1. Mechanistic insights into NaThe Journal of biological chemistry · 2026
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  2. Article
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  7. Nanosecond Transient IR Spectroscopy of Halorhodopsin in Living Cells.Journal of the American Chemical Society · 2024
    Article
  8. Article
  9. Draft genome sequences of three rhodopsin possessingMicrobiology resource announcements · 2024
    Article
  10. Article
  11. Article
  12. KInternational journal of molecular sciences · 2023
    Article
  13. Article
  14. Article
  15. Potassium-selective channelrhodopsins.Biophysics and physicobiology · 2023
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Mutations conferring SOScientific reports · 2022
    Article

20 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 2 countries.

Susumu YoshizawaAtmosphere and Ocean Research Institute, University of Tokyo, Chiba 277-8564 Japan.
Yohei Kumagai
Hana Kim
Yoshitoshi Ogura
Tetsuya Hayashi
Wataru Iwasaki
Edward F DeLong
Kazuhiro Kogure
The University of Tokyo · JPUniversity of Hawaii System · USUniversity of Miyazaki · JPJapan Science and Technology Agency · JPMassachusetts Institute of Technology · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Light-activated, ion-pumping rhodopsins are broadly distributed among many different bacteria and archaea inhabiting the photic zone of aquatic environments. Bacterial proton- or sodium-translocating rhodopsins can convert light energy into a chemiosmotic force that can be converted into cellular biochemical energy, and thus represent a widespread alternative form of photoheterotrophy. Here we report that the genome of the marine flavobacterium Nonlabens marinus S1-08(T) encodes three different types of rhodopsins: Nonlabens marinus rhodopsin 1 (NM-R1), Nonlabens marinus rhodopsin 2 (NM-R2), and Nonlabens marinus rhodopsin 3 (NM-R3). Our functional analysis demonstrated that NM-R1 and NM-R2 are light-driven outward-translocating H(+) and Na(+) pumps, respectively. Functional analyses further revealed that the light-activated NM-R3 rhodopsin pumps Cl(-) ions into the cell, representing the first chloride-pumping rhodopsin uncovered in a marine bacterium. Phylogenetic analysis revealed that NM-R3 belongs to a distinct phylogenetic lineage quite distant from archaeal inward Cl(-)-pumping rhodopsins like halorhodopsin, suggesting that different types of chloride-pumping rhodopsins have evolved independently within marine bacterial lineages. Taken together, our data suggest that similar to haloarchaea, a considerable variety of rhodopsin types with different ion specificities have evolved in marine bacteria, with individual marine strains containing as many as three functionally different rhodopsins.

Indexed as

ChloridesEvolution, MolecularFlavobacteriaceaeGenome, BacterialIon PumpsLightMolecular Sequence DataPhylogenyRhodopsinChloridesIon PumpsRhodopsinecologyevolutionphotoheterotrophphotoproteinsretinal

Identifiers

PMID24706784
PMCPMC4020065
OpenAlexW1963898183

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.