Transcriptomics

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Gene expression of 4hr serum stimulated mouse ES cells after 72hr serum starvation


ABSTRACT: Among fos family genes modulating the cell fates such as cell proliferation, differentiation and cell death, only the fosB gene produces two forms of mature mRNA for FosB and deltaFosB proteins by alternative splicing of an exonic intron in the exon 4. FosB dramatically enhances the transcription regulation of AP-1 dependent promoters by Jun, while deltaFosB, a truncated form of FosB lacking its C-terminal transactivation domain, suppresses the function of Jun. We and other have shown that FosB and deltaFosB have a distinct function to control the cell fate as well as neuronal functions based on their exogenous expression. To elucidate the authentic function of each protein, it is essential to control each expression separately. We established a mutant mouse embryonic stem (ES) cell line carrying homozygous fosBd/d alleles which encode exclusively deltaFosB, and compared its gene expression profile and phenotypes with fosB-null and wild-type ES cell lines. Both mutant ES cells are devoid of FosB, therefore the common phenotypes between the two mutant ES cells in comparison to wild type depict the effects of FosB deficiency. Opposite phenotypes between the two are considered to be determined by deltaFosB itself. We analyzed the gene expression and cellular function among these two mutant and wild-type ES cells. Keywords: mouse ES cells (wild type and fosB gene mutant types)

ORGANISM(S): Mus musculus

PROVIDER: GSE5963 | GEO | 2006/10/05

SECONDARY ACCESSION(S): PRJNA97431

REPOSITORIES: GEO

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