8227
Amino acid residues of beta 1 ' , alpha A ' , alpha B ' , and the loop containing His539 of the RNase H domain interact with the primer strand of the dsDNA .
 GENE: RNase H domain
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: RNase H domain 
Answer:
 GENE: RNase H domain