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We have been studying the interaction of the oncogenic human polyomavirus BK ( BKV ) with the tumor - suppressor protein p53 to understand the biology of this virus as well as to understand the basic mechanisms of p53 transactivation .
 GENE: tumor - suppressor protein p53; GENE: p53
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: tumor - suppressor protein p53; GENE: p53