PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16821235-0 2006 The Rap GTPases mediate CXCL13- and sphingosine1-phosphate-induced chemotaxis, adhesion, and Pyk2 tyrosine phosphorylation in B lymphocytes. Tyrosine 98-106 C-X-C motif chemokine ligand 13 Homo sapiens 24-30 16821235-7 2006 We also show that Pyk2, a tyrosine kinase involved in cytoskeleton rearrangements and B cell migration, is a downstream target of both CXCL13 and S1P signaling and that Rap activation is important for CXCL13 and S1P to stimulate tyrosine phosphorylation of Pyk2, a modification that increases Pyk2 kinase activity. Tyrosine 26-34 C-X-C motif chemokine ligand 13 Homo sapiens 135-141