19368
Soluble mouse and human marapsins are tryptic with subsite preferences distinct from those of prostasin , lack general proteinase activity , and unlike prostasins resist antiproteases , including leupeptin , aprotinin , serpins , and alpha 2 - macroglobulin , suggesting the presence of non - canonical active sites .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None