1545
A V1 mutant generated in vivo with 11 of the 14 N - terminal amino acids altered , was viable and produced symptoms typical of a wild - type infection .
 GENE: V1 mutant
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: V1 mutant