Once again I am back to consult your wisdom. Very recently I obtained a list of regions inside mouse chromosome 7 which are contacting a specific nuclear body (sorry, cannot give more details about it). Several proteins overlap these regions (i.e. cohesin). However, I would like to know how significant these overlap ratios are compared to a randomly chosen region set (which has the same length characteristics as my original nuclear body dataset).
Does anyone know any tool one could use to perform this analysis? I found the R package named coocur but this analyzes protein binding sites co-occurrence, which I think is a little different from what I'm trying to do.
Also, in case such program does not exist, what would be the best way to proceed in terms of statistical tests? I was thinking on writing a script that chooses regions randomly with the same length as my nuclear dataset, calculating overlaps, and then comparing such ratios with my nuclear body ratios. But then I think maybe boostrapping is also necessary, but I'm not sure what statistical test should I use in that case.
I'd appreciate any insight you may provide.