PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9467954-6 1998 These findings thus suggested that, in addition to GPI-linked cell surface proteins, Ca2+ ions are components of the signal transducing complex formed by Ret and GDNF protein family. Glycosylphosphatidylinositols 51-54 ret proto-oncogene Homo sapiens 154-157