Evidence map›Paper›PMID 12006484›Full record

ArticleThe EMBO journal2002

A novel mode of sensory transduction in archaea: binding protein-mediated chemotaxis towards osmoprotectants and amino acids.

Maia V Kokoeva, Kai-Florian Storch, Christian Klein, Dieter Oesterhelt

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

37 citing papers in PubMed, 75 citations in OpenAlex.

  1. Article
  2. Determination ofJournal of the Royal Society, Interface · 2025
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  3. Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Methods to Analyze Motility in Eury- and Crenarchaea.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  11. The role of solute binding proteins in signal transduction.Computational and structural biotechnology journal · 2021
    Review
  12. Article
  13. Article
  14. Taxis in archaea.Emerging topics in life sciences · 2018
    Article
  15. Review
  16. Article
  17. Microbial radiation-resistance mechanisms.Journal of microbiology (Seoul, Korea) · 2017
    Review
  18. 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

4 authors at 1 institution in 1 country.

Maia V KokoevaMax-Planck Institut für Biochemie, D-82152 Martinsried, Germany.
Kai-Florian Storch
Christian Klein
Dieter Oesterhelt
Max Planck Institute of Biochemistry · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Directly upstream of the Halobacterium salinarum transducer genes basT and htpIV we identified two open reading frames (orfs) with significant homologies to genes encoding binding proteins for amino acids and compatible solutes, respectively. Behavioral testing of deletion mutants indicates that halobacterial chemotaxis towards branched-chain amino acids as well as compatible osmolytes of the betaine family requires both a binding and a transducer protein. We therefore named the binding/transducer proteins BasB/BasT for branched-chain and sulfur-containing amino acids and CosB/CosT for compatible solutes. Our data support a signaling mechanism with the binding proteins functioning as lipid-anchored receptors interacting with the extracellular domain of their cognate transducers. Inspection of the halobacterial genome suggests that BasB and CosB exclusively mediate chemotaxis responses without any additional role in transport, which is in contrast to bacterial binding proteins, which are always part of ABC transport systems. The CosB/CosT system is the first instance of a chemotaxis signaling pathway for organic osmolytes in the living world and natural abundance 13C-NMR analysis of cytoplasmic extracts suggests that H.salinarum utilizes these solutes for osmotic adaptation.

Indexed as

Amino AcidsAmino Acid SequenceArchaeaChemotaxisEscherichia coliGenome, ArchaealHalobacterium salinarumOpen Reading FramesSequence AlignmentSequence Homology, Amino AcidSignal TransductionAmino Acids

Identifiers

PMID12006484
PMCPMC125379
OpenAlexW2053354188

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.