|Citation||Carrera, I., Zavadil, J., Treisman, J.E. (2008). Two subunits specific to the PBAP chromatin remodeling complex have distinct and redundant functions during drosophila development. Mol. Cell. Biol. 28(17): 5238--5250. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||Chromatin remodeling complexes control the availability of DNA binding sites to transcriptional regulators. Two distinct conserved forms of the SWI/SNF class of complexes are characterized by the presence of specific accessory subunits. In Drosophila, the core Brahma complex associates either with Osa to form the BAP complex or with Bap170 and Bap180 to form the PBAP complex. osa mutations reproduce only a subset of the developmental phenotypes caused by mutations in subunits of the core complex. To test whether the PBAP complex performs the remaining functions, we generated mutations in bap170 and bap180. Surprisingly, we found that Bap180 is not essential for viability, although it is required in ovarian follicle cells for normal eggshell development. Bap170 is necessary to stabilize the Bap180 protein, but a mutant form that retains this function is sufficient for both survival and fertility. The two subunits act redundantly to allow metamorphosis; using gene expression profiling of bap170 bap180 double mutants, we found that the PBAP complex regulates genes involved in tissue remodeling and immune system function. Finally, we generated mutants lacking Bap170, Bap180, and Osa in the germ line to demonstrate that the core Brahma complex can function in oogenesis without any of these accessory subunits.|
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|Language of Publication||English|
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|Also Published As|
|Abbreviation||Mol. Cell. Biol.|
|Title||Molecular and Cellular Biology|
|Data from Reference|
|Natural transposons (1)|