714
In contrast to PU.1 , significant levels of Spi-B mRNA and protein are found only in some B-cell lines and spleen but are not found in myeloid cell lines , neutrophils , or macrophages .
 ( cell type: neutrophils, None) , ( protein: PU.1, None) , ( RNA: Spi-B mRNA, None) , ( cell type: macrophages, None) , ( cell line: B-cell lines, None) , ( protein: Spi-B, None) , ( cell line: myeloid 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:
 ( cell type: neutrophils, None) , ( protein: PU.1, None) , ( RNA: Spi-B mRNA, None) , ( cell type: macrophages, None) , ( cell line: B-cell lines, None) , ( protein: Spi-B, None) , ( cell line: myeloid cell lines, None) 