195
Variant A ( - 1 ) T at the Fas signal - sequence cleavage site , which mediates apoptosis less well than wild - type Fas and is partially inhibitory , was present in 13 % of African American alleles .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities:  
Answer:
 None