PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12011430-1 2002 A G to T mutation has been observed at the third position of codon 249 of the p53 tumor-suppressor gene in over 50% of the hepatocellular carcinoma cases associated with high exposure to aflatoxin B(1) (AFB(1)). Aflatoxin B1 187-198 tumor protein p53 Homo sapiens 78-81