10374
Supershift EMSAs identified that upstream stimulatory factor - 1 and - 2 ( USF - 1 and - 2 ) were part of these complexes .
 upstream stimulatory factor - 1 and - 2, USF - 1 and - 2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 upstream stimulatory factor - 1 and - 2, USF - 1 and - 2