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GEO help: Mouse over screen elements for information. |
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| Status |
Public on Mar 01, 2006 |
| Title |
Global and gene-specific analyses show distinct roles for Myod and Myog at a common set of promoters |
| Organism |
Mus musculus |
| Experiment type |
Expression profiling by array
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| Summary |
We used a combination of genome-wide and promoter-specific DNA binding and expression analyses to assess the functional roles of Myod and Myog in regulating the program of skeletal muscle gene expression. Our findings indicate that Myod and Myog have distinct regulatory roles at a similar set of target genes. At genes expressed throughout the program of myogenic differentiation, Myod can bind and recruit histone acetyltransferases. At early targets, Myod is sufficient for near full expression; whereas, at late expressed genes Myod initiates regional histone modification but is not sufficient for gene expression. At these late genes, Myog does not bind efficiently without Myod, however, transcriptional activation requires the combined activity of Myod and Myog. Therefore, the role of Myog in mediating terminal differentiation is, in part, to enhance expression of a subset of genes previously initiated by Myod.
Keywords: Myod, Myogenin, muscle differentiation, regulatory network, gene expression
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| Overall design |
Mouse embryonic fibroblasts isolated from Myod-/-Myf-/- mice were tranduced with either MDER or MDER+Myog. MDER was activated by the addition of beta-estradiol. Cells were induced to differentiate for various times, and triplate samples were collected from the indicated time points.
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| Contributor(s) |
Cao Y, Tapscott SJ |
| Citation(s) |
16437161 |
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| Submission date |
Dec 16, 2005 |
| Last update date |
Jan 08, 2019 |
| Contact name |
Yi Cao |
| E-mail(s) |
[email protected]
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| Phone |
206-667-5278
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| Organization name |
Fred Hutchinson CRC
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| Department |
Human Biology
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| Lab |
Tapscott
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| Street address |
1100 Fairview Ave. N
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| City |
Seatttle |
| State/province |
WA |
| ZIP/Postal code |
98109 |
| Country |
USA |
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| Platforms (1) |
| GPL339 |
[MOE430A] Affymetrix Mouse Expression 430A Array |
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| Samples (36)
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| Relations |
| BioProject |
PRJNA94085 |
| Supplementary file |
Size |
Download |
File type/resource |
| GSE3858_RAW.tar |
125.9 Mb |
(http)(custom) |
TAR (of CEL, EXP) |
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