7345
Initiation of DNA replication requires the function of MCM gene products , which participate in ensuring that DNA replication occurs only once in the cell cycle .
 ( protein: MCM gene products, 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: MCM gene products, None) 