9002
The serine phosphorylation of these STATs was a continuous process, as incubation of CLL cells with the kinase inhibitor H7 led to the dephosphorylation of these serine residues .
 ( cell line: CLL cells, None) , ( protein: kinase inhibitor H7, None) , ( protein: STATs, 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: CLL cells, None) , ( protein: kinase inhibitor H7, None) , ( protein: STATs, None) 