from a human genomic library , we previously cloned part of an nca gene and showed that the amino-terminal region has extensive sequence homology to cea ( thompson , j. a. , pande , h. , paxton , r. j. , shively , l. , padma , a. , simmer , r. l. , todd , ch . w. , riggs , a. d. , and shively , j.e . ( 1987 ) proc . natl . acad . sci . u. s.a. 84 , 2965-2969 ) .
C0086418
human
C0007082
cea