6046
Using a series of mutant T antigens expressed by recombinant baculoviruses in Sf9 cells , we find that the origin unwinding activities of both TS677 - - > A and TS677 , 679 - - > A are inhibited by the T - antigen kinase , as is wild - type T antigen .
 mutant T antigens, T - antigen kinase, wild - type T antigen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 mutant T antigens, T - antigen kinase, wild - type T antigen