PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6745267-11 1984 Our conclusion that the N-CAM forms of higher Mr are transmembrane proteins was further corroborated by our finding that they contain phosphoserine residues, which can be labeled with (32P)phosphate in intact neuroblastoma cells. Phosphates 189-198 neural cell adhesion molecule 1 Mus musculus 24-29