Eukaryotic DNA replication is regulated at the level of large chromosomal domains (0.5-5 megabases in mammals) within which replicons are activated relatively synchronously. These domains replicate in a specific temporal order during S-phase and our genome-wide analyses of replication timing have demonstrated that this temporal order of domain replication is a stable property of specific cell types.
Pubmed ID: 19077204 RIS Download
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Portal to interactively visualize genomic data. Provides reference sequences and working draft assemblies for collection of genomes and access to ENCODE and Neanderthal projects. Includes collection of vertebrate and model organism assemblies and annotations, along with suite of tools for viewing, analyzing and downloading data.
View all literature mentionsReplicationDomain is an online database resource for storing, sharing and visualizing DNA replication timing and transcription data, as well as other numerical epigenetic data types. Data is typically obtained from DNA microarrays or DNA sequencing. Our site has a user registration system that allows registered users to upload their own data sets. While non-registered users may freely view and download public data sets, registered users may upload their own data sets and view them privately, share them with other registered users, or make published data sets publicly available. In addition we have implemented additional mechanisms that allow users to restrict sharing of data sets to a user designated group of registered users. Further details on the database usage are in the User Guide Page, while data set details are in the Documentation Page. Replication timing data were obtained by hybridizing early and late replication intermediates to Nimblegen oligonucleotide arrays, as described in Hiratani et al [PLoS Biology (2008) 6: e245]. Briefly, replication intermediates are prepared from cells that are first pulse-labeled with BrdU and then sorted into early and late stages of S-phase by flow cytometry, followed by anti-BrdU immunoprecipitation of the BrdU-substituted (nascent) replication intermediates that were synthesized either early or late during S-phase. After unbiased amplification of recovered DNA, the samples are differentially labeled with Cy3 and Cy5 and hybridized to Nimblegen CGH arrays containing one oligonucleotide probe every 5.8 kb across the mouse genome (Nimblegen, 2006-07-26_MM8_WG_CGH). Raw data from two independent biological replicates in which the early and late replicating DNA were labeled reciprocally with Cy3 and Cy 5 (dye switch) are loess-normalized and scaled to have the same median-absolute deviation using the limma package (R/Bioconductor) and then averaged. Finally, the data are smoothed with a weighted moving average (loess: local polynomial smoothing).
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