1523
In this report, we studied the role of SCL in the proliferation of human peripheral blood burst-forming unit-erythroid ( BFU-E ) and the effects of Steel factor on SCL expression in proliferating erythroid cells .
 ( cell type: human peripheral blood burst-forming unit-erythroid, None) , ( protein: Steel factor, None) , ( cell type: BFU-E, None) , ( protein: SCL, None) , ( cell type: proliferating erythroid 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:
 ( cell type: human peripheral blood burst-forming unit-erythroid, None) , ( protein: Steel factor, None) , ( cell type: BFU-E, None) , ( protein: SCL, None) , ( cell type: proliferating erythroid cells, None) 