PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
2205309-6	1990	Eighty percent of the mutations involved substitution of aspartic acid for glycine (G----A) in the 12th or 13th codons of N-ras or K-ras.	Aspartic Acid	57-70	KRAS proto-oncogene, GTPase	Homo sapiens	131-136