7211
In these experiments, SOCS-3 associated with Jak1 and inhibited Jak1 phosphorylation , and this inhibition was markedly enhanced by the presence of IL-2 receptor beta chain ( IL-2Rbeta ).
 ( protein: IL-2, None) , ( protein: SOCS-3, None) , ( protein: Jak1, None) , ( protein: Jak1, None) , ( protein: IL-2Rbeta, None) , ( protein: IL-2 receptor beta chain, 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: IL-2, None) , ( protein: SOCS-3, None) , ( protein: Jak1, None) , ( protein: Jak1, None) , ( protein: IL-2Rbeta, None) , ( protein: IL-2 receptor beta chain, None) 