8123
We report the preliminary biochemical characterization of the T antigens encoded by three SV40 mutants , 5030 , 5031 , and 5061 , each of which have altered residues within or near the ATP binding pocket .
 GENE: T antigens
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: T antigens 
Answer:
 GENE: T antigens