Unknown,Transcriptomics,Genomics,Proteomics

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Gene expression analysis of Kc cells from Drosophila melanogaster during ecdysone treatment and CP190 knockdown


ABSTRACT: This study examines the changes in genes expression that occur in Drosophila melanogaster during the ecdysone response as well as during RNAi knockdown of the insulator protein, CP190. Analysis was performed in Kc cells after 0, 3, and 48 hours of ecdysone treatment in the presence of either control or CP190 knockdown. Six conditions were analyzed, and each condition was performed for 2 biological replicates making a total of 12 chips. Each chip measures the expression level of 16,637 genes from D.melanogaster with eight, 60-mer probes per gene.

ORGANISM(S): Drosophila melanogaster

SUBMITTER: Ashley Wood 

PROVIDER: E-GEOD-30686 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Regulation of chromatin organization and inducible gene expression by a Drosophila insulator.

Wood Ashley M AM   Van Bortle Kevin K   Ramos Edward E   Takenaka Naomi N   Rohrbaugh Margaret M   Jones Brian C BC   Jones Keith C KC   Corces Victor G VG  

Molecular cell 20111001 1


Insulators are multiprotein-DNA complexes thought to affect gene expression by mediating inter- and intrachromosomal interactions. Drosophila insulators contain specific DNA-binding proteins plus common components, such as CP190, that facilitate these interactions. Here, we examine changes in the distribution of Drosophila insulator proteins during the heat-shock and ecdysone responses. We find that CP190 recruitment to insulator sites is the main regulatable step in controlling insulator functi  ...[more]

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