Evidence map›Paper›PMID 19502405›Full record

ArticleJournal of bacteriology2009

Biochemical evidence for a timing mechanism in prochlorococcus.

Ilka M Axmann, Ulf Dühring, Luiza Seeliger, Anne Arnold, Jens T Vanselow, Achim Kramer, Annegret Wilde

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

41 citing papers in PubMed, 80 citations in OpenAlex.

  1. Review
  2. Review
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  15. Snowball Earth, population bottleneck andProceedings. Biological sciences · 2021
    Article
  16. Article
  17. Review
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  20. Journal of bacteriology · 2020
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 3 countries.

Ilka M AxmannInstitute for Theoretical Biology, Humboldt University, Berlin, Germany. ilka.axmann@charite.de
Ulf Dühring
Luiza Seeliger
Anne Arnold
Jens T Vanselow
Achim Kramer
Annegret Wilde
Humboldt State University · USCharité - Universitätsmedizin Berlin · DEInstituto de Física Teórica · ESUniversity of Giessen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Organisms coordinate biological activities into daily cycles using an internal circadian clock. The circadian oscillator proteins KaiA, KaiB, and KaiC are widely believed to underlie 24-h oscillations of gene expression in cyanobacteria. However, a group of very abundant cyanobacteria, namely, marine Prochlorococcus species, lost the third oscillator component, KaiA, during evolution. We demonstrate here that the remaining Kai proteins fulfill their known biochemical functions, although KaiC is hyperphosphorylated by default in this system. These data provide biochemical support for the observed evolutionary reduction of the clock locus in Prochlorococcus and are consistent with a model in which a mechanism that is less robust than the well-characterized KaiABC protein clock of Synechococcus is sufficient for biological timing in the very stable environment that Prochlorococcus inhabits.

Indexed as

Circadian RhythmGene Expression Regulation, BacterialAmino Acid SequenceBacterial ProteinsCircadian Rhythm Signaling Peptides and ProteinsModels, BiologicalMolecular Sequence DataPhosphorylationProchlorococcusSequence AlignmentBacterial ProteinsCircadian Rhythm Signaling Peptides and ProteinsKaiB protein, cyanobacteriaKaiC protein, cyanobacteria

Identifiers

PMID19502405
PMCPMC2725622
OpenAlexW2157861496

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.