5622
It has been shown previously that the 55 - kDa polypeptide abrogates p53 - mediated transactivation and that mutants defective in p53 binding are unable to cooperate with E1A in transformation .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities:  
Answer:
 None