13158
Three of these mutants contained targeted disruptions of potential functional motifs: the acidic activation domain , a putative GTP -binding motif and two leucine charged domains ( LCD motifs ).
 ( protein: leucine charged domains, None) , ( protein: LCD motifs, None) , ( protein: acidic activation domain, None) , ( protein: GTP -binding motif, 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: leucine charged domains, None) , ( protein: LCD motifs, None) , ( protein: acidic activation domain, None) , ( protein: GTP -binding motif, None) 