PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1821845-7	1991	Further characterization using immunoblot analysis revealed that Sp mutants have an altered N-CAM polypeptide profile.	sp	65-67	neural cell adhesion molecule 1	Mus musculus	92-97	
1821845-13	1991	The Sp locus may be involved in post-translational modification of N-CAM.	sp	4-6	neural cell adhesion molecule 1	Mus musculus	67-72