5758
The ability of Qp to bind signal transducer and activator of transcription (STAT) proteins was directly demonstrated by electrophoretic mobility-shift assay , and mutation of potential STAT-binding sites reduced Qp responsiveness to Janus kinase (JAK)-1 .
 ( protein: signal transducer and activator of transcription (STAT) proteins, None) , ( DNA: Qp, None) , ( DNA: Qp, None) , ( protein: Janus kinase (JAK)-1, None) , ( DNA: STAT-binding sites, 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 (STAT) proteins, None) , ( DNA: Qp, None) , ( DNA: Qp, None) , ( protein: Janus kinase (JAK)-1, None) , ( DNA: STAT-binding sites, None) 