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purpose of 65 degrees incubation overnight after beads elution for CHIP - (Mar/30/2014 )

hello guys,


i am new in performing CHIP assay, i want to ask a simple question on the purpose of incubating the sample after beads elution at 65 degrees overnight.


also, what universal primer can i use just  to check if i have finally eluted my dna and captured my dna fragments by my antibody? or should i simple run a small amount of my clean eluted dna in an agarose gel?


thank you..


that is to reverse the crosslink done by formaldehyde at the beginning.