1342
While Bik does not show overt homology to the BH1 and BH2 conserved domains characteristic of the Bcl-2 family , it does share a 9 amino acid domain ( BH3 ) with Bax and Bak which may be a critical determinant for the death-promoting activity of these proteins.
 protein: amino acid domain; protein: BH1; protein: BH3; protein: Bak; protein: BH2; protein: Bax; protein: Bik; protein: Bcl-2 family
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: amino acid domain; protein: BH1; protein: BH3; protein: Bak; protein: BH2; protein: Bax; protein: Bik; protein: Bcl-2 family