3009
Compared with active peptides containing F or W , peptides containing E in either of these two positions were more than 10 - fold less effective in effluxing cholesterol by the ABCA1 transporter .
 cholesterol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 cholesterol