PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9233798-6 1997 These tyrosine residues are followed by proline at the + 3 position, consistent with the binding specificity of RasGAP SH2 domains determined using a degenerate phosphopeptide library. Proline 40-47 RAS p21 protein activator 1 Mus musculus 112-118