7484
High retinoidal activity (agonist or antagonist for retinoic acid receptor ( RAR ) requires a carboxylic acid moiety and an appropriate hydrophobic group located at a suitable position on the molecule.
 RAR, retinoic acid receptor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 RAR, retinoic acid receptor