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Here , we analyzed the interaction of the Lactococcus lactis Ll . LtrB group II intron endonuclease with its DNA target site by DNA footprinting and modification - interference approaches .
 GENE: Lactococcus lactis Ll . LtrB group II intron endonuclease
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: Lactococcus lactis Ll . LtrB group II intron endonuclease