utilizing an antiserum raised against a peptide fragment identical to part of the carboxyl terminal extension of cholecystokinin ( cck ) predicted by the sequence of cck mrna [ 7 ] , an antiserum has been generated which does not detect cck 39 , cck 33 , cck 8 , cck 4 or gastrin 171 .
C0039659
cck 4
C0017151
gastrin