2869
SCL protein production was examined in a variety of hemopoietic cell lines by immunoblotting using specific polyclonal antisera .
 ( protein: SCL protein, None) , ( cell line: hemopoietic cell lines, 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: SCL protein, None) , ( cell line: hemopoietic cell lines, None) 