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Reference.org
KaiB
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<p>KaiB is a gene located in the highly-conserved <i><a href="/facts/KaiABC/gfLvBBIn">kaiABC</a></i> gene cluster of various <a href="/facts/Cyanobacterial/S8bKxIU9">cyanobacterial</a> species. Along with <a href="/facts/KaiA/Ir7ERgVn">KaiA</a> and <a href="/facts/KaiC/qD4L8pIz">KaiC</a>, KaiB plays a central role in operation of the cyanobacterial circadian clock. Discovery of the Kai genes marked the first-ever identification of a <a href="/facts/Circadian/rwQh0ClJ">circadian</a> oscillator in a <a href="/facts/Prokaryotic/oYyvaDDH">prokaryotic</a> species. Moreover, characterization of the cyanobacterial clock demonstrated the existence of transcription-independent, post-translational mechanisms of rhythm generation, challenging the universality of the transcription-translation feedback loop model of circadian rhythmicity. </p>