Periodic transcription: a cycle within a cycle.
Studies in model organisms indicate that one in every five genes may be subject to cell cycle regulated transcription. Moreover, a high proportion of periodically expressed genes have discrete roles in the cell division process, and their peaks of expression coincide with the interval during which they function. This periodic transcription is commonly regulated by transcription factors that are also periodically transcribed, and there is a growing number of examples where the transcription factors and their targets are conserved in yeast and mammalian cells. As such, it is worth considering why these regulatory circuits persist in such great number, how they are achieved and what role they may play in the cell cycle.
Breeden
Linda L
LL
Division of Basic Sciences, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N, 98109-1024, Seattle, WA, USA. lbreeden@fhcrc.org
D002453:Cell Cycle / Q000235:genetics*; D017124:Conserved Sequence / Q000502:physiology; D016213:Cyclins / Q000502:physiology; D004268:DNA-Binding Proteins; D006801:Humans; D008562:Membrane Glycoproteins; D018832:Molecular Chaperones; D010507:Periodicity; D011506:Proteins / Q000502:physiology; D029701:Saccharomyces cerevisiae Proteins / Q000502:physiology; D004718:Saccharomycetales / Q000166:cytology / Q000235:genetics; D014157:Transcription Factors / Q000378:metabolism / Q000502:physiology; D014158:Transcription, Genetic
C079895:CLN3 protein, S cerevisiae; C105199:CLN3 protein, human; D016213:Cyclins; D004268:DNA-Binding Proteins; D008562:Membrane Glycoproteins; D018832:Molecular Chaperones; D011506:Proteins; C062214:SWI4 protein, S cerevisiae; D029701:Saccharomyces cerevisiae Proteins; D014157:Transcription Factors