14784
In comparison, UT-7 Epo cells expressed alpha-globin and higher levels of gamma-globin (5-fold) and beta-globin (from barely to clearly detectable).
 ( protein: beta-globin, None) , ( protein: gamma-globin, None) , ( cell line: UT-7 Epo cells, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: beta-globin, None) , ( protein: gamma-globin, None) , ( cell line: UT-7 Epo cells, None) 