PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15184865-4 2004 Substitution of valine 804 with the small amino- acid glycine renders the RET kinase even more susceptible to inhibition (ZD6474 IC(50): 20 nM) than the wild-type kinase. Glycine 54-61 ret proto-oncogene Homo sapiens 74-77