Version 25 features a nice way to display CpG methylation data, and the track background color configuration.
CpG methylation track
Now a new display method is available to address this issue:
This example shows two methylC-seq tracks in human hg19. Methylation levels over CpG sites are marked out by red/blue bars, and the "counter-value" is marked out with gray. A long gray bar means the CpG site has very low methylation level. This way you can tell a unmethylated CpG site from those blank regions with no CpG sites.
This rendering method is suitable for numerical data with incomplete coverage of the entire genome. In the other words, if your track hasn't got a value for every bp in the genome, you should use this display method.
To use this display method, convert your track into bedGraph format.
To turn on the effect, add this attribute in the track object in the datahub:
barplot_bg:"#cccccc",
Or in the embedding code, add this:
barplotbackground:"#cccccc",
Track background
To apply background color in datahub or embedded browser, add this in track object:
backgroundcolor:"#cccccc",
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