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| Status |
Public on Mar 07, 2016 |
| Title |
SOX2 O-GlcNAcylation alters its protein-protein interactions and genomic occupancy to modulate gene expression in pluripotent cells [array] |
| Organism |
Mus musculus |
| Experiment type |
Expression profiling by array
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| Summary |
The transcription factor SOX2 is central in establishing and maintaining pluripotency. The processes that modulate SOX2 activity to promote pluripotency are not well understood. Here, we show SOX2 is O-GlcNAc modified in its transactivation domain during reprogramming and in mouse embryonic stem cells (mESCs). Upon induction of differentiation SOX2 O-GlcNAcylation at serine 248 is decreased. Replacing wild type with an O-GlcNAc-deficient SOX2 (S248A) increases reprogramming efficiency. ESCs with O-GlcNAc-deficient SOX2 exhibit alterations in gene expression. This change correlates with altered protein-protein interactions and genomic occupancy of the O-GlcNAc-deficient SOX2 compared to wild type. In addition, SOX2 O-GlcNAcylation impairs the SOX2-PARP1 interaction, which has been shown to regulate ESC self-renewal. These findings show that SOX2 activity is modulated by O-GlcNAc modification, and provide a novel regulatory mechanism for this crucial pluripotency transcription factor.
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| Overall design |
To determine if the fSOX2-Tg and fS248A-Tg mouse embryonic stem cell lines (mESC) exhibited differences in gene expression changes, we used microarrays to compare the transcriptomes of the two mESC lines. We had triplicate biological samples per mESC line.
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| Contributor(s) |
Panning B, Peddada S, Myers SA, Krings G |
| Citation(s) |
26949256 |
| |
| Submission date |
Jun 04, 2015 |
| Last update date |
Jun 06, 2016 |
| Contact name |
Barbara Panning |
| E-mail(s) |
barbara.panning@gmail.com
|
| Phone |
415-514-0884
|
| Organization name |
University of California, San Francisco
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| Department |
Biochemistry and Molecular biology
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| Lab |
Panning Lab
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| Street address |
600, 16TH STREET, S374 - Genentech Hall,
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| City |
San Francisco |
| State/province |
CALIFORNIA |
| ZIP/Postal code |
94158 |
| Country |
USA |
| |
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| Platforms (1) |
| GPL20290 |
Agilent-034068/ArrayStar Mouse LncRNA microarray V2.0 (8x60K) [coding transcripts] |
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| Samples (6)
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| This SubSeries is part of SuperSeries: |
| GSE69594 |
SOX2 O-GlcNAcylation alters its protein-protein interactions and genomic occupancy to modulate gene expression in pluripotent cells |
|
| Relations |
| BioProject |
PRJNA285923 |
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