Project description:Common fragile sites (CFSs) are genomic loci prone to the formation of breaks or gaps on metaphase chromosomes. Here, we seek to map human CFSs with high resolution on a genome-wide scale by sequencing the sites of mitotic DNA synthesis (MiDASeq) that are specific for CFSs. We generated a nucleotide-resolution atlas of MiDAS sites (MDSs) that covered most of know CFSs, and comprehensively analyzed their sequence characteristics and genomic features.
Project description:Common fragile sites (CFSs) are genomic loci prone to the formation of breaks or gaps on metaphase chromosomes. Here, we seek to map human CFSs with high resolution on a genome-wide scale by sequencing the sites of mitotic DNA synthesis (MiDASeq) that are specific for CFSs. We generated a nucleotide-resolution atlas of MiDAS sites (MDSs) that covered most of know CFSs, and comprehensively analyzed their sequence characteristics and genomic features.
Project description:Common fragile sites (CFSs) are genomic loci prone to the formation of breaks or gaps on metaphase chromosomes. Here, we seek to map human CFSs with high resolution on a genome-wide scale by sequencing the sites of mitotic DNA synthesis (MiDASeq) that are specific for CFSs. We generated a nucleotide-resolution atlas of MiDAS sites (MDSs) that covered most of know CFSs, and comprehensively analyzed their sequence characteristics and genomic features.
Project description:Map the histone H3K9/14 acetylation regions of in human cells at 7 common fragile sites and their flanking non-fragile sequences as well as a 200kb containing the rare fragile site FRAXA, a 1,075kb non-fragile region on chr22, a hyperacetylated region HALPHA44, and a heterochromatic region HET405. The acetylated regions were mapped in untreated, aphidicolin(APH)-treated, trichostatin(TSA)-treated, and TSA plus APH-treated cells by combining the chromatin-immunoprecipitation with a tiled microarray platform (ChIP-chip).