protein binding characteristics including percentage of total binding , total binding capacity ( pmol/mg protein ) , degree of specific binding , competition with dihydrotestosterone ( dht ) and estradiol ( e2 ) binding sites and dissociation constants ( kd ) of low and high affinity binding sites were investigated for the progestins cyproterone acetate ( cpa ) , gestodene ( g ) , norethisterone ( net ) and levonorgestrel ( ln ) in serum or plasma pools from man and four laboratory animal species ( rat , rabbit , dog and monkey ) .
C0229671
serum
C0032105
plasma