Project description:A probe of the coupling of gene expression and nuclear structure in Drosophila S2R+ cells was undertaken by a study of altered expression profile following a 6 day RNAi mediated genetic perturbation of Klaroid (CG18584), Lamin (CG6944) and Msp-300 (CG33715).
Project description:A probe of the coupling of gene expression and nuclear structure in Drosophila S2R+ cells was undertaken by a study of altered expression profile following a 6 day RNAi mediated genetic perturbation of Klaroid (CG18584), Lamin (CG6944) and Msp-300 (CG33715). Genotypic Technology designed Custom Gene Expression Drosophila 8x15k array ( Agilent-AMADID:020441)
Project description:Nucleus is a highly structured organelle and contains many functional compartments. While the structural basis for this complex spatial organization of compartments is unknown, a major component of this organization is likely to be the non-chromatin scaffolding called nuclear matrix (NuMat). Experimental evidence over the past decades indicates that most of the nuclear functions are at least transiently associated with the NuMat although the components of NuMat itself are poorly known. Here, we report NuMat proteome analysis from Drosophila melanogaster embryos and discuss its links with nuclear architecture and functions. In the NuMat proteome, we find structural proteins, chaperones related, DNA/RNA binding, chromatin remodeling and transcription factors. This complexity of NuMat proteome is an indicator of its structural and functional significance. Comparison of the 2D profile of NuMat proteome from different developmental stages of Drosophila embryos shows that less than half of the NuMat proteome is constant and rest of the proteins are stage specific dynamic components. This NuMat dynamics suggests a possible functional link between NuMat and the embryonic development. Finally, we also show that a subset of NuMat proteins remain associated with the mitotic chromosomes implicating their role in mitosis and possibly the epigenetic cellular memory. NuMat proteome analysis provides tools and opens up ways to understand nuclear organization and function.
Project description:High-throughput sequencing of Drosophila melanogaster small RNAs from S2R+ cells. total RNA, ~18-26nt RNAs isolated using PAGE, ligation to adapters requires 5' monophosphate and 3' OH For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf Small RNAs were sequenced from D. melanogaster S2R+ cells. Raw sequences were clipped by 3' linker sequences recognition, and select clipped sequences longer than 18 nt.
