1407
Accumulating evidence has shown that both the pre - synaptic and post - synaptic sites are highly enriched in lipid rafts , which are likely to organize and maintain synaptic proteins in their precise localization .
 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