PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3624221-5 1987 The 1H and 13C nuclear magnetic resonance data indicated that imidazole C-2 of histidine is linked to C-6 of norleucine (epsilon-deaminated lysine residue) which in turn is linked to the C-6 amino group of hydroxylysine. Hydroxylysine 206-219 complement C2 Bos taurus 72-75