PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9645349-6 1998 Analysis of specific KRAS2 mutations showed a strong effect of Asp (GAT) and Val (GTT) mutations, resulting in a very poor survival compared with wild type group, whereas the most common mutation (Cys, TGT) was not associated with prognosis. Aspartic Acid 63-66 KRAS proto-oncogene, GTPase Homo sapiens 21-26