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TranscriptomicsThe insulator protein SU(HW) modulates nuclear lamina interactions of the Drosophila genome: expression
Specific interactions of the genome with the nuclear lamina (NL) are thought to assist chromosome folding inside the nucleus and to contribute to the regulation of gene expression. High-resolution mapping has recently identified hundreds of large, sharply defined lamina-associated domains (LADs) in ...
ORGANISM(S): Drosophila melanogaster 
2011-01-24 | E-GEOD-20312 | biostudies-arrayexpress
TranscriptomicsInteractions among Polycomb domains are guided by chromosome architecture
Polycomb group (PcG) proteins bind and regulate hundreds of genes. Previous evidence has suggested that long-range chromatin interactions may contribute to the regulation of PcG target genes. Here, we adapted the Chromosome Conformation Capture on Chip (4C) assay to systematically map chromosomal in...
ORGANISM(S): Drosophila melanogaster 
2011-05-09 | E-GEOD-23166 | biostudies-arrayexpress
TranscriptomicsGlucosylated hydroxymethyluracil (DNA base J) prevents transcriptional read-through in Leishmania
Some T's in nuclear DNA of trypanosomes and Leishmania are hydroxylated and glucosylated to yield base J (?-D-glucosyl-hydroxymethyluracil). In Leishmania about 99% of J is located in telomeric repeats. We show here that most of the remaining J is located at chromosome-internal RNA Polymerase II ter...
ORGANISM(S): Leishmania major 
2011-10-15 | E-GEOD-32976 | biostudies-arrayexpress
TranscriptomicsGene expression profiling in wild type and In(3LR)sep larval brain tissue (Drosophila)
We performed a series of microarray expression profile experiments in central brain tissue from 3rd instar larvae, interrogating expression differences between wild type and In(3LR)sep strains. Since our 4C data (http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE23166), demonstrated dramatic chan...
ORGANISM(S): Drosophila melanogaster 
2011-05-09 | E-GEOD-26693 | biostudies-arrayexpress
TranscriptomicsExpression profiles of the NuB4/HAT-B complex and histone knockouts
Dynamic modification of histone proteins plays a key role in regulating gene expression. However, histones themselves can also be dynamic, which potentially affects the stability of histone modifications. To determine the molecular mechanisms of histone turnover we developed a parallel screening met...
ORGANISM(S): Saccharomyces cerevisiae 
2012-05-14 | E-GEOD-30168 | biostudies-arrayexpress
TranscriptomicsThe insulator protein SU(HW) modulates nuclear lamina interactions of the Drosophila genome: DamID
Specific interactions of the genome with the nuclear lamina (NL) are thought to assist chromosome folding inside the nucleus and to contribute to the regulation of gene expression. High-resolution mapping has recently identified hundreds of large, sharply defined lamina-associated domains (LADs) in ...
ORGANISM(S): Drosophila melanogaster 
2011-01-24 | E-GEOD-20311 | biostudies-arrayexpress
TranscriptomicsProtein profiling reveals five principal chromatin types in Drosophila cells
The local protein composition of chromatin is important for the regulation of transcription and other functions. By integrative analysis of genome-wide binding maps of 53 broadly selected chromatin components in Drosophila cells, we show that the genome is segmented into five principal chromatin typ...
ORGANISM(S): Drosophila melanogaster 
2010-10-01 | E-GEOD-22069 | biostudies-arrayexpress
TranscriptomicsReorganization of nuclear lamina – genome interactions upon differentiation of embryonic stem cells.
The three-dimensional organization of chromosomes within the nucleus and its dynamics during differentiation are largely unknown. We present a genome-wide analysis of the interactions between chromatin and the nuclear lamina during differentiation of mouse embryonic stem cells (ESCs) into lineage-co...
ORGANISM(S): Mus musculus 
2010-05-27 | E-GEOD-17051 | biostudies-arrayexpress
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