5273
The characteristics of the VirD1 / VirD2 - mediated cleavage reaction strongly resemble those observed with relaxosomes of IncP plasmids involved in initiation of transfer DNA replication during bacterial conjugation .
 VirD1, VirD2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 VirD1, VirD2