Evidence map›Paper›PMID 21332358›Full record

ReviewAnnual review of biophysics2011

The cyanobacterial circadian system: from biophysics to bioevolution.

Carl Hirschie Johnson, Phoebe L Stewart, Martin Egli

Abstract readReview
In one paragraph

Review in Annual review of biophysics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
–field-weighted citation impact
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

63 citing papers in PubMed.

  1. Article
  2. PERspectives on circadian cell biology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
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3 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

3 authors.

Carl Hirschie JohnsonDepartment of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA. carl.h.johnson@vanderbilt.edu
Phoebe L Stewart
Martin Egli

Funding

Circadian Programs in BacteriaR37GM067152 · NIGMS · VANDERBILT UNIVERSITY · PI JOHNSON, CARL HIRSCHIE · 2015 to 2024
$4.1M
Circadian Programs in BacteriaR01GM067152 · NIGMS · VANDERBILT UNIVERSITY · PI JOHNSON, CARL HIRSCHIE · 2003 to 2014
$3.9M
Structural Biology of the S. elongatus Circadian ClockR01GM073845 · NIGMS · VANDERBILT UNIVERSITY · PI EGLI, MARTIN · 2006 to 2013
$2.4M
Experimental Evolution of Circadian OscillatorsR01GM088595 · NIGMS · VANDERBILT UNIVERSITY · PI JOHNSON, CARL HIRSCHIE · 2009 to 2012
$1.2M
Structure of Circadian Clock Complexes from Cyanobacteria by Three Dimensional EMR01GM081646 · NIGMS · VANDERBILT UNIVERSITY · PI EGLI, MARTIN · 2009 to 2010
$577k
NIGMS NIH HHS GM067152NIGMS NIH HHS GM073845NIGMS NIH HHS GM081646NIGMS NIH HHS GM088595NIGMS NIH HHS R01 GM067152NIGMS NIH HHS R01 GM073845NIGMS NIH HHS R01 GM081646NIGMS NIH HHS R01 GM088595NIGMS NIH HHS R37 GM067152
6 · The paper itself

Abstract

Recent studies have unveiled the molecular machinery responsible for the biological clock in cyanobacteria and found that it exerts pervasive control over cellular processes including global gene expression. Indeed, the entire chromosome undergoes daily cycles of topology/compaction! The circadian system comprises both a posttranslational oscillator (PTO) and a transcriptional/translational feedback loop (TTFL). The PTO can be reconstituted in vitro with three purified proteins (KaiA, KaiB, and KaiC) and ATP. These are the only circadian proteins for which high-resolution structures are available. Phase in this nanoclockwork has been associated with key phosphorylations of KaiC. Structural considerations illuminate the mechanism by which the KaiABC oscillator ratchets unidirectionally. Models of the complete in vivo system have important implications for our understanding of circadian clocks in higher organisms, including mammals. The conjunction of structural, biophysical, and biochemical approaches to this system has brought our understanding of the molecular mechanisms of biological timekeeping to an unprecedented level.

Indexed as

Evolution, MolecularModels, BiologicalBacterial ProteinsBiological ClocksCircadian RhythmComputer SimulationCyanobacteriaBacterial Proteins

Identifiers

PMID21332358
PMCPMC3093959

What OpenQuestion holds

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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.