tokens: Hierarchy of protein tyrosine kinases in interleukin-2 ( IL-2 ) signaling : activation of syk depends on Jak3 ; however , neither Syk nor Lck is required for IL-2 mediated STAT activation .
folded_tokens: hierarchy of protein tyrosine kinase in interleukin-2 ( il-2 ) signaling : activation of syk depend on jak3 ; however , neither syk nor lck be require for il-2 mediated stat activation .