Complex sentence: Specific proteins containing these domains include Src and phospholipase Cγ, the phosphorylation and activation of these two proteins on receptor binding, leading to the initiation of signal transduction pathways.
Split into simpler sentences: Specific proteins containing these domains include Src and phospholipase Cγ. Phosphorylation and activation of these two proteins on receptor binding lead to the initiation of signal transduction pathways.