作者: Shinzo Oikawa , Seiichi Imajo , Teruhisa Noguchi , Goro Kosaki , Hiroshi Nakazato
DOI: 10.1016/S0006-291X(87)80013-X
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摘要: The amino acid sequences of human carcinoembryonic antigen deduced from the cDNA (1) have been analysed. This contains seven extracellular domains (previously recognized three highly repetitive are further divided into A and B subdomains each) which strikingly homologous to each other immunoglobulin variable regions, poly-Ig receptor Thy 1.1. N-terminal domain lacks immunoglobulin-like fold but six have, suggesting that CEA belongs superfamily.