10107
Furthermore, we demonstrated by western blot analysis that neutrophils express an alternatively spliced variant of the pituitary transcription factor Pit-1 , designated Pit-1b .
 ( protein: Pit-1b, None) , ( cell type: neutrophils, None) , ( protein: Pit-1, None) , ( protein: pituitary transcription factor, 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: Pit-1b, None) , ( cell type: neutrophils, None) , ( protein: Pit-1, None) , ( protein: pituitary transcription factor, None) 