13738
Using mRNA differential display we demonstrated abnormally high expression of the signal transducer and activator of transcription ( STAT1alpha ) in monocytes from the proband II-2 .
 ( cell line: proband II-2, None) , ( cell type: monocytes, None) , ( protein: STAT1alpha, None) , ( protein: signal transducer and activator of transcription, 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 line: proband II-2, None) , ( cell type: monocytes, None) , ( protein: STAT1alpha, None) , ( protein: signal transducer and activator of transcription, None) 