12052
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 .
 GENE: CopG; GENE: CopG
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: CopG, CopG 
Answer:
 GENE: CopG; GENE: CopG