Abstract: Disclosed is a protein that specifically binds carcinoembryonic actigen (CEA) in the presence of divalent cation in vitro. This protein has a molecular weight of about 20 kD as determined by SDS-polyacrylamide gel electrophoresis, is glycosylated, and includes the amino acid sequence set forth in the Sequence Listing as SEQ ID NO:4. Also disclosed are antibodies that recognize the CEA binding protein, methods of detecting carcinoma, methods of treating carcinoma, and a kit for screening a patient for carcinoma.
Type:
Grant
Filed:
May 31, 1991
Date of Patent:
January 25, 1994
Assignees:
Applied Biotechnology, Inc., New England Deacons Hospital Corp.
Inventors:
Carol A. Toth, Peter Thomas, Sibusisiwe M. Maswoswe, Joseph V. Briggman