using different immunisation regimens and the antigens 6 beta-hydroxyprogesterone hemisuccinate and 11 alpha-hydroxyprogesterone hemisuccinate conjugated to bovine serum albumin , we have produced 35 monoclonal antibodies against progesterone with a wide range of specificities and affinities ( ka = 8 x 10 ( 7 ) -3 x 10 ( 10 ) m-1 ) .
C0020387
hydroxyprogesterone
C0033308
progesterone