3506
The cyclin-dependent kinase inhibitor p27Kip1 plays an important role in regulating cell-cycle progression .
 ( DNA: p27Kip1, None) , ( DNA: cyclin-dependent kinase inhibitor, 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:
 ( DNA: p27Kip1, None) , ( DNA: cyclin-dependent kinase inhibitor, None) 