4343
The mutation , an arginine - to - cysteine exchange at residue 24 , was part of the CDK4 peptide recognized by CTLs and prevented binding of the CDK4 inhibitor p16INK4a , but not of p21 or of p27KIP1 .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities:  
Answer:
 None