tokens: Biochemical experiments have shown that CopG co-operatively associates to its target DNA at low protein : DNA ratios , completely protecting four helical turns on the same face of the double helix in both directions from the inverted repeat that constitutes the CopG primary target .
folded_tokens: biochemical experiment have show that copg co-operatively associate to its target dna at low protein : dna ratio , completely protect four helical turn on the same face of the double helix in both direction from the inverted repeat that constitute the copg primary target .