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TranscriptomicsActivation-induced cytidine deaminase induces reproducible DNA breaks at many non-Ig loci in activated B cells
After immunization or infection, activation-induced cytidine deaminase (AID) initiates diversification of immunoglobulin (Ig) genes in B cells, introducing mutations within the antigen binding V regions (somatic hypermutation, SHM) and double-strand DNA breaks (DSBs) into switch (S) regions, leading...
ORGANISM(S): Mus musculus 
2011-01-21 | E-GEOD-24827 | biostudies-arrayexpress
GenomicsDNA double-strand breaks induced by high NaCl occur predominantly in gene deserts
High concentration of NaCl increases DNA breaks both in cell culture and in vivo. The breaks remain elevated as long as NaCl concentration remains high and are rapidly repaired when the concentration is lowered. Repair of the breaks after NaCl is reduced is accompanied by formation of foci containi...
ORGANISM(S): Mus musculus 
2011-11-21 | E-GEOD-32882 | biostudies-arrayexpress
GenomicsRif1 Prevents Resection of DNA Breaks and Promotes Immunoglobulin Class Switching
DNA double-strand breaks (DSBs) represent a threat to the genome because they can lead to loss of genetic information and chromosome rearrangements. The DNA repair protein p53 binding protein 1 (53BP1) protects the genome by limiting nucleolytic processing of DSBs by a mechanism that requires its ph...
ORGANISM(S): Mus musculus 
2013-03-01 | E-GEOD-42298 | biostudies-arrayexpress
TranscriptomicsOrientation-Specific Joining of AID-initiated DNA Breaks Promotes Antibody Class Switching
During B cell development, RAG endonuclease cleaves immunoglobulin heavy chain (IgH) V, D, and J gene segments and orchestrates their fusion as deletional events that assemble a V(D)J exon in the same transcriptional orientation as adjacent Cμ constant region exons. In mice, six additional sets of c...
ORGANISM(S): Mus musculus 
2015-08-26 | E-GEOD-71005 | biostudies-arrayexpress
TranscriptomicsMeiotic DNA double strand breaks in the yeast Saccaromyces cerevisiae
DNA double-strand breaks (DSBs) initiate meiotic recombination. Past DSB-mapping studies have used rad50S or sae2? mutants, which are defective in break processing, to accumulate DSBs, and report large (= 50 kb) “DSB-hot” regions that are separated by “DSB-cold” domains of similar size. Substantial ...
ORGANISM(S): Saccharomyces cerevisiae 
2007-12-30 | E-GEOD-8981 | biostudies-arrayexpress
TranscriptomicsHot spots of DNA double-strand breaks and genomic contacts of human rDNA units are involved in epigenetic regulation [DSBs]
Eukaryotic chromosomes are subjected to spontaneous fragmentation even under quick isolation of DNA in a solid phase by strong treatment with 0.1 M EDTA, 1% SDS and proteinase K (1 mg/ml). The long DNA fragments of excised chromosomal DNA were denoted as forum domains. Mostly forum domains are of 50...
ORGANISM(S): Homo sapiens 
2014-10-04 | E-GEOD-49302 | biostudies-arrayexpress
ProteomicsSensing and signalling of DNA breaks in extracts of preblastoderm Drosophila embryos
Preblastoderm Drosophila embryos replicate their genomes at maximal speed. The assembly of chromatin on the newly synthesized chromosomes relies entirely on high concentrations of maternal nucleosome assembly and remodelling factors. Extracts from preblastoderm embryos can be turned into a system fo...
ORGANISM(S): Drosophila melanogaster (Fruit fly) 
2019-10-14 | PXD013130 | Pride
Dna repair Dna damage response D.melanogaster 
ProteomicsMeiotic DNA breaks activate a streamlined response that largely avoids protein level changes-DDA
To understand the proteome and phosphoproteome level responses to meiotic DNA breaks, we have compared protein phosphorylation and protein levels in cells spo11-YF (cannot form meiotic DNA breaks) cells to SPO11 (can form meiotic breaks) cells.
ORGANISM(S): Saccharomyces cerevisiae (Baker's yeast) 
2022-08-15 | PXD031779 | Pride
Spo11 Dna damage Meiosis Yeast 
ProteomicsMeiotic DNA breaks activate a streamlined response that largely avoids protein level changes -DIA
To understand the proteome and phosphoproteome level responses to meiotic DNA breaks, we have compared protein phosphorylation and protein levels in cells spo11-YF (cannot form meiotic DNA breaks) cells to SPO11 (can form meiotic breaks) cells.
ORGANISM(S): Saccharomyces cerevisiae (Baker's yeast) 
2022-08-15 | PXD031781 | Pride
Spo11 Dna damage Meiosis Yeast 
GenomicsSequencing Apoptotic DNA Breakpoints
DNA fragmentation is a well-recognized hallmark of apoptosis. However, the precise DNA sequences cleaved during apoptosis triggered by distinct mechanisms remain unclear. We used next-generation sequencing of DNA fragments generated in Actinomycin D-treated human HL-60 leukemic cells to generate a h...
ORGANISM(S): Homo sapiens 
2011-10-15 | E-GEOD-32997 | biostudies-arrayexpress
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