3367
After 5 - h thermal induction of cells carrying the runaway recombinant pBS1 , protein B2 constituted 40 % of the soluble protein fraction of the cells .
 GENE: protein B2
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: protein B2