13389
Specific families of receptors , kinases , transcription factors , and cysteine proteases , termed caspases , are involved in the apoptotic cascade leading to proteolysis of specific substrates and to morphological changes associated with programmed cell death .
 ( protein: cysteine proteases, None) , ( protein: kinases, None) , ( protein: transcription factors, None) , ( protein: receptors, None) , ( protein: termed caspases, 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: cysteine proteases, None) , ( protein: kinases, None) , ( protein: transcription factors, None) , ( protein: receptors, None) , ( protein: termed caspases, None) 