7562
Although Bak and Bcl - 2 - associated X protein ( Bax ) , another member of the Bcl - 2 family , are generally thought to be functionally redundant , only Bak is necessary and sufficient for VK2 - induced cytochrome c ( cyt c ) release and cell death .
 Chemical: VK2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: VK2