12322
Besides ligand-induced receptor heterodimerization and contacts of the two IL-4 receptor subunits alpha and gamma with Janus kinases JAK1 and JAK3 a prominent constitutive binding between JAK1 and signal transducer and activator of transcription STAT5 was detected.
 ( protein: signal transducer and activator of transcription, None) , ( protein: JAK1, None) , ( protein: Janus kinases, None) , ( protein: JAK1, None) , ( protein: STAT5, None) , ( protein: JAK3, 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: JAK1, None) , ( protein: Janus kinases, None) , ( protein: JAK1, None) , ( protein: STAT5, None) , ( protein: JAK3, None) 