2861
Both the subunit oligomerisation and membrane anchor of AChE are shared by a related enzyme , butyrylcholinesterase ( BChE ) , the physiological function of which in the brain is unclear .
 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