Literature DB >> 15893664

Recent cyanobacterial Kai protein structures suggest a rotary clock.

Jimin Wang1.   

Abstract

The cyanobacterial circadian oscillator consists of three Kai proteins, KaiA, KaiB, and KaiC, in its oscillation feedback loop. Structural comparison reveals that the Kai system resembles the F1-ATPase system in which KaiC is equivalent to alpha(3)beta(3), KaiA to gammadelta, and KaiB to its inhibitory factor. It also suggests that there exists a possible haemagglutinin-like spring-loaded mechanism for the activation of KaiA during the formation of Kai complexes.

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Year:  2005        PMID: 15893664     DOI: 10.1016/j.str.2005.02.011

Source DB:  PubMed          Journal:  Structure        ISSN: 0969-2126            Impact factor:   5.006


  6 in total

1.  Analysis of KaiA-KaiC protein interactions in the cyano-bacterial circadian clock using hybrid structural methods.

Authors:  Rekha Pattanayek; Dewight R Williams; Sabuj Pattanayek; Yao Xu; Tetsuya Mori; Carl H Johnson; Phoebe L Stewart; Martin Egli
Journal:  EMBO J       Date:  2006-04-20       Impact factor: 11.598

Review 2.  The itty-bitty time machine genetics of the cyanobacterial circadian clock.

Authors:  Shannon R Mackey; Susan S Golden; Jayna L Ditty
Journal:  Adv Genet       Date:  2011       Impact factor: 1.944

Review 3.  The cyanobacterial circadian system: from biophysics to bioevolution.

Authors:  Carl Hirschie Johnson; Phoebe L Stewart; Martin Egli
Journal:  Annu Rev Biophys       Date:  2011       Impact factor: 12.981

4.  Structural and functional characterisation of a conserved archaeal RadA paralog with antirecombinase activity.

Authors:  Anne-Marie McRobbie; Lester G Carter; Melina Kerou; Huanting Liu; Stephen A McMahon; Kenneth A Johnson; Muse Oke; James H Naismith; Malcolm F White
Journal:  J Mol Biol       Date:  2009-05-03       Impact factor: 5.469

5.  Circadian rhythmicity by autocatalysis.

Authors:  Arun Mehra; Christian I Hong; Mi Shi; Jennifer J Loros; Jay C Dunlap; Peter Ruoff
Journal:  PLoS Comput Biol       Date:  2006-06-08       Impact factor: 4.475

Review 6.  Circadian clocks go in vitro: purely post-translational oscillators in cyanobacteria.

Authors:  Felix Naef
Journal:  Mol Syst Biol       Date:  2005-09-13       Impact factor: 11.429

  6 in total

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