28015
Furthermore , we report that this flavonoid inhibits a single step in the sumoylation cascade : the transfer of SUMO from the E2 enzyme ( Ubc9 ) thioester conjugate to the substrate .
 Chemical: flavonoid
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: flavonoid