We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Identification of direct DAF-16 targets controlling longevity, metabolism and diapause by chromatin immunoprecipitation.
- Authors
Seung Wook Oh; Mukhopadhyay, Arnab; Dixit, Bharat L.; Raha, Tamal; Green, Michael R.; Tissenbaum, Heidi A.
- Abstract
DAF-16, a forkhead transcription factor, is a key regulator of longevity, metabolism and dauer diapause in Caenorhabditis elegans. The precise mechanism by which DAF-16 regulates multiple functions, however, is poorly understood. Here, we used chromatin immunoprecipitation (ChIP) to identify direct targets of DAF-16. We cloned 103 target sequences containing consensus DAF-16 binding sites and selected 33 targets for further analysis. Expression of most of these genes is regulated in a DAF-16–dependent manner, and inactivation of more than half of these genes significantly altered DAF-16–dependent functions, including life span, fat storage and dauer formation. Our results show that the ChIP-based cloning strategy leads to greater enrichment for DAF-16 target genes than previous screening strategies. We also demonstrate that DAF-16 is recruited to multiple promoters to coordinate regulation of its downstream targets. The large number of target genes discovered provides insight into how DAF-16 controls diverse biological functions.
- Publication
Nature Genetics, 2006, Vol 38, Issue 2, p251
- ISSN
1061-4036
- Publication type
Academic Journal
- DOI
10.1038/ng1723