Control genes do not show any significant changes in any of the investigated marks.
This information represents a novel opportunity to investigate chromatin marks genome-wide at locations where transcription is known to be repressed, which could previously be investigated only for TSS positions of annotated genes.
The 'scent-matching' hypothesis predicts that competitors could identify resource holders by investigating scent marks from a given area and matching these with the owner's odour when they meet.
In this study, the digital microscope with 3D surface reconstruction based on extended depth of focus (EDF) technology was used to investigate tool marks of stone reliefs excavated at the Mausoleum of Cao Cao (AD155 AD220) at the end of the Eastern Han Dynasty (AD25 AD220).
Time spent investigating scent marks was quantified.
Bold figures: pain drawing criteria with OR > 3. Figure 2 gives a graphic index of the investigated PD marks.
Our data revealed that the investigated regulatory marks for mouse Foxg1, were distinct and non-overlapping (Additional file 12: Table S5).
However, except for GAS6 (growth-arrest specific 6, five-fold downregulated, increased promoter methylation), these genes were generally expressed at low levels both before and after differentiation and no correlation to changes in the investigated histone marks could be detected.
Still, the limiting factor to this observation and also other studies that investigated epigenetic marks was the number of PML RAR α binding regions addressed and, therefore, the generality of the proposed mechanisms.
In addition, the 184 827 RTSSs from FANTOM5 defined globally over 975 human tissues, cell lines and primary cells represent an opportunity to investigate chromatin marks at RTSSs repressed in the respective cell-lines, as well as the expressed ones.
Although not all causes of volatility were investigated, when marking quality and grade boundary changes were taken out of the equation, results remained unsettled.
