11717
A Y341 --> F mutant of Syk , which is deficient in its interaction with phospholipase Cy1 and Vav , was less efficient than wild-type Syk .
 ( protein: wild-type Syk, None) , ( protein: Vav, None) , ( protein: phospholipase Cy1, None) , ( protein: Syk, None) , ( protein: F mutant, None) , ( protein: Syk, 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: wild-type Syk, None) , ( protein: Vav, None) , ( protein: phospholipase Cy1, None) , ( protein: Syk, None) , ( protein: F mutant, None) , ( protein: Syk, None) 