5473
Moreover, gp120 induces tyrosine phosphorylation of signal transducer and activator of transcription ( STAT-1 alpha ) as well as the Janus kinase ( JAK2 ) in glial cells .
 ( protein: signal transducer and activator of transcription, None) , ( protein: STAT-1 alpha, None) , ( protein: Janus kinase, None) , ( protein: JAK2, None) , ( cell type: glial cells, None) , ( protein: gp120, 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: signal transducer and activator of transcription, None) , ( protein: STAT-1 alpha, None) , ( protein: Janus kinase, None) , ( protein: JAK2, None) , ( cell type: glial cells, None) , ( protein: gp120, None) 