1469
Activin receptor - interacting protein 1 ( ARIP1 ) has been identified as a cytoplasmic protein that interacts with the type II receptor of activin ( ActRII ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None