1566
BI - 1 ( Bax inhibitor - 1 ) , an apoptosis - inhibiting gene belonging to the Bcl - 2 protein family , plays an important role in mitochondrial apoptosis pathway to suppress Bax - induced apoptosis .
 Anatomy: mitochondrial
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: mitochondrial