PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1955083-2	1991	The forms of IGF-II found in normal human serum include a 67 amino acid form and a variant form resulting from alternate splicing of the mRNA such that Ser-29 is replaced by four other amino acid residues.	Serine	152-155	insulin like growth factor 2	Homo sapiens	13-19