8051
In this report , we identify and characterize two overlapping ELL functional domains that govern its interaction with RNA polymerase II and the ternary elongation complex .
 ELL functional domains, RNA polymerase II
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 ELL functional domains, RNA polymerase II