No knockdown effect: p<0.05 with A cells as n 22.6%; B images as n 5.1%; C experiments, CTCF 4.9%; D experiments, no background subtraction 5.1%; average estimated ratio C 1.01, D 1.00
Knockdown lowers signal by 30%: p<0.05 with A cells as n 99.1%; B images as n 89.7%; C experiments, CTCF 69.7%; D experiments, no background subtraction 61.4%; average estimated ratio C 0.70, D 0.79