9850
Analysis of erythroblasts co-expressing Spi-1 and the wild-type mouse EpoR showed that differentiation arrest and inhibition of apoptosis depended on specific cooperation between Spi-1 and EpoR (R129C) .
 ( protein: Spi-1, None) , ( protein: EpoR (R129C), None) , ( protein: EpoR, None) , ( protein: Spi-1, None) , ( protein: wild-type mouse EpoR, None) , ( protein: EpoR, 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: Spi-1, None) , ( protein: EpoR (R129C), None) , ( protein: EpoR, None) , ( protein: Spi-1, None) , ( protein: wild-type mouse EpoR, None) , ( protein: EpoR, None) 