CLN3, not positive feedback, determines the timing of CLN2 transcription in cycling cells.

Abstract excerpt

Transcriptional activation of the budding yeast CLN1 and CLN2 genes during the late G1 phase of the cell cycle has been attributed to a positive feedback loop, wherein the transcription of both genes is stimulated by the accumulation of their protein products. We demonstrate that in cycling cells CLN2 does not play a role in determining the timing of its own transcriptional activation. First, we show that CLN3...

Topics

• Base Sequence
• Cell Cycle
• Cyclins
• DNA Primers
• Fungal Proteins
• G1 Phase
• Genes, Fungal
• Molecular Sequence Data
• Mutation
• Promoter Regions, Genetic
• Saccharomyces cerevisiae Proteins
• Time Factors