13963
These data suggest that a small number of GATA-1.05 mutant hematopoietic progenitor cells begin to proliferate vigorously during early adulthood, but because the cells are unable to terminally differentiate, this leads to progenitor proliferation in the spleen and consequently death.
 ( protein: GATA-1.05, None) , ( cell line: GATA-1.05 mutant hematopoietic progenitor 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: GATA-1.05, None) , ( cell line: GATA-1.05 mutant hematopoietic progenitor cells, None) 