Control of transcriptional variability by overlapping feed-forward regulatory motifs.

ABSTRACT: In yeast, beta-oxidation of fatty acids (FAs) takes place in the peroxisome, an organelle whose size and number are controlled in response to environmental cues. The expression of genes required for peroxisome assembly and function is controlled by a transcriptional regulatory network that is induced by FAs such as oleate. The core FA-responsive transcriptional network consists of carbon source-sensing transcription factors that regulate key target genes through an overlapping feed-forward network motif (OFFNM). However, a systems-level understanding of the function of this network architecture in regulating dynamic FA-induced gene expression is lacking. The specific role of the OFFNM in regulating the dynamic and cell-population transcriptional response to oleate was investigated using a

SUBMITTER: Ratushny AV 

PROVIDER: S-EPMC2553142 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature