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. Phosphorus-32 185-188 neural cell adhesion molecule 1 Mus musculus 24-29