12778
We demonstrate here that the SLP-76 linker protein interacts with both nck , an adaptor protein , and Vav , a guanine nucleotide exchange factor for Rho-family GTPases .
 ( protein: guanine nucleotide exchange factor, None) , ( protein: nck, None) , ( protein: adaptor protein, None) , ( protein: Vav, None) , ( protein: Rho-family GTPases, None) , ( protein: SLP-76, 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: guanine nucleotide exchange factor, None) , ( protein: nck, None) , ( protein: adaptor protein, None) , ( protein: Vav, None) , ( protein: Rho-family GTPases, None) , ( protein: SLP-76, None) 