1720
The results indicate that the RNA in T7 RNA polymerase is not free of steric interactions in the ternary complex and not available for structure formation until it is at least 10 bases away from the site of polymerization .
 GENE: T7 RNA polymerase
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: T7 RNA polymerase