PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22990843-6 2013 Following glutamate stimulation, LFA1 is phosphorylated by the Src Kinase Lck at the Y735 residue, which triggers a downstream signaling cascade leading to activation of PI3K, Syk, Vav and finally the Rho family GTPase, Rac2. Glutamic Acid 10-19 Rac family small GTPase 2 Homo sapiens 220-224