Flexible promoter architecture requirements for coactivator recruitment
Journal Article
·
· BMC Molecular Biology
- Univ. of California, Berkeley, CA (United States); Broad Inst. of MIT and Harvard, Cambridge, MA (United States); DOE/OSTI
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Affymetrix, Santa Clara, CA (United States)
- Univ. of California, Berkeley, CA (United States)
- Univ. of Wisconsin, Madison, WI (United States)
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
The spatial organization of transcription factor binding sites in regulatory DNA, and the composition of intersite sequences, influences the assembly of the multiprotein complexes that regulate RNA polymerase recruitment and thereby affects transcription. We have developed a genetic approach to investigate how reporter gene transcription is affected by varying the spacing between transcription factor binding sites. We characterized the components of promoter architecture that govern the yeast transcription factors Cbf1 and Met31/32, which bind independently, but collaboratively recruit the coactivator Met4. A Cbf1 binding site was required upstream of a Met31/32 binding site for full reporter gene expression. Distance constraints on coactivator recruitment were more flexible than those for cooperatively binding transcription factors. Distances from 18 to 50 bp between binding sites support efficient recruitment of Met4, with only slight modulation by helical phasing. Intriguingly, we found that certain sequences located between the binding sites abolished gene expression. These results yield insight to the influence of both binding site architecture and local DNA flexibility on gene expression, and can be used to refine computational predictions of gene expression from promoter sequences. In addition, our approach can be applied to survey promoter architecture requirements for arbitrary combinations of transcription factor binding sites.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
- Grant/Contract Number:
- AC02-05CH11231; AC03-76SF00098
- OSTI ID:
- 1626499
- Journal Information:
- BMC Molecular Biology, Journal Name: BMC Molecular Biology Journal Issue: 1 Vol. 7; ISSN 1471-2199
- Publisher:
- BioMed CentralCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Determining Physical Constraints in Transcriptional Initiation Complexes Using DNA Sequence Analysis
Determining physical constraints in transcriptional initiationcomplexes using DNA sequence analysis
Crystal Structure of the Dimeric Oct6 (Pou3fl) POU Domain Bound to Palindromic MORE DNA
Journal Article
·
Tue Nov 20 19:00:00 EST 2007
· PLoS ONE
·
OSTI ID:1627339
Determining physical constraints in transcriptional initiationcomplexes using DNA sequence analysis
Journal Article
·
Sun Jul 01 00:00:00 EDT 2007
· Public Library of Science
·
OSTI ID:932488
Crystal Structure of the Dimeric Oct6 (Pou3fl) POU Domain Bound to Palindromic MORE DNA
Journal Article
·
Fri Dec 30 23:00:00 EST 2011
· Proteins: Structure Functions and Bioinformatics
·
OSTI ID:1042208