18086
Protein interaction studies show that K210R slightly but significantly decreased FXR / retinoid X receptor ( RXR ) binding affinity but enhanced the interaction of FXR with lysine methyltransferase Set7 / 9 by ~ 21 % .
 Chemical: retinoid; Chemical: lysine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: retinoid; Chemical: lysine