For example in human cell lines, Rivera-Mulia et al.11 report that developmental shifts to later timing precedes transcriptional down-regulation and developmental shifts to earlier timing follows transcriptional up-regulation for the majority of replication timing switching genes, suggesting that replication timing may be both a driver and a passenger of transcription.
Using MATLAB programming, dynamic optimization processes were done to evaluate the option values of investments and the timing switching technologies.
Individuals responded to a visual cue by depressing a timing switch.
High confidence replication timing switching domains were selected with a q-value cutoff of 0.01, corresponding to an overall FDR of 1%.
The fraction of chromosome domains that displayed EtoL switching in response to BAF250a loss (commonly misregulated in BAF250a-deficient ESCs and OSKM cells), showed a very similar tendency of replication timing switching in Brg1 but not BAF53a mutant ESCs.
Indeed, we identified a set of chromosomal domains that undergo replication timing switching in BAF250a-deficient OSKM cells and found that significant fraction of these switching domains overlap with those identified in BAF250a-deficient ESCs.
To examine alignment of timing switching domains to developmental domains, replication timing data from 9 cell types (ESC/iPSC, EBM3/EPL, EBM6/EpiSC, NPC, Mesoderm, Endoderm, partial iPSC, MEF, and Myoblast) were assembled from the ReplicationDomain.org database [ 44] and plotted together with the data from BAF250a mock and OHT.
In order to determine the significant replication timing switching domains that are independent of changes between replicates, we determined Euclidian distance at 10,974 200-Kb segments between groups (that is, mock versus OHT) and within groups (that is, mock replicate-1 versus mock replicate-2), wasch was used to calculate P values at each 200-Kb genomic segment.
The large EtoL replication-timing switches of these domains are strongly associated with loss of pluripotency [ 45, 51].
For a long time, rivalry was considered a memoryless process and thus, successive dominance durations were assumed to be independent and the timing of switches are unpredictable.
