1154
BACKGROUND: Understanding the mechanism of developmental regulation of hemoglobin switching has scientific as well as clinical relevance because of the influence of fetal hemoglobin ( HbF ) production in adulthood on the clinical manifestation of thalassemia and sickle cell anemia .
 ( protein: hemoglobin, None) , ( protein: HbF, None) , ( protein: hemoglobin, 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: hemoglobin, None) , ( protein: HbF, None) , ( protein: hemoglobin, None) 