Next Article in Journal
Type V Protein Secretion: Simplicity Gone Awry?
Previous Article in Journal
Cancer Gene Suppression Strategies: Issues and Potential
 
 
Current Issues in Molecular Biology is published by MDPI from Volume 43 Issue 1 (2021). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with Caister Press.
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Review

Precise Circadian Clocks in Prokaryotic Cyanobacteria

by
Carl Hirschie Johnson
Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
Curr. Issues Mol. Biol. 2004, 6(2), 103-110; https://doi.org/10.21775/cimb.006.103
Submission received: 4 November 2003 / Revised: 8 January 2004 / Accepted: 10 March 2004 / Published: 4 May 2004

Abstract

Prokaryotic cyanobacteria express robust circadian (daily) rhythms under the control of a timing mechanism that is independent of the cell division cycle. This biological clock orchestrates global regulation of gene expression and controls the timing of cell division. Proteins that may be involved in input pathways have been identified. Mutational screening has identified three clock genes that are organized as a gene cluster. The structure of cyanobacterial clock proteins, their phosphorylation, and regulation is described. A new model for the core clockwork in cyanobacteria proposes that rhythmic changes in the status of the chromosome underlie the rhythms of gene expression. Mixed-strain experiments demonstrate that this timekeeper confers adaptive value when different strains compete against each other.

Share and Cite

MDPI and ACS Style

Johnson, C.H. Precise Circadian Clocks in Prokaryotic Cyanobacteria. Curr. Issues Mol. Biol. 2004, 6, 103-110. https://doi.org/10.21775/cimb.006.103

AMA Style

Johnson CH. Precise Circadian Clocks in Prokaryotic Cyanobacteria. Current Issues in Molecular Biology. 2004; 6(2):103-110. https://doi.org/10.21775/cimb.006.103

Chicago/Turabian Style

Johnson, Carl Hirschie. 2004. "Precise Circadian Clocks in Prokaryotic Cyanobacteria" Current Issues in Molecular Biology 6, no. 2: 103-110. https://doi.org/10.21775/cimb.006.103

APA Style

Johnson, C. H. (2004). Precise Circadian Clocks in Prokaryotic Cyanobacteria. Current Issues in Molecular Biology, 6(2), 103-110. https://doi.org/10.21775/cimb.006.103

Article Metrics

Back to TopTop