a comparison of the relative cytosolic ah ( 9s ) receptor binding affinities and aryl hydrocarbon hydroxylase ( ahh ) induction potencies of these hydrocarbons with their 4s protein binding affinities demonstrated the following : five compounds , namely 1,2,5,6-dibenz [ a ] -anthracene , 1,2,3,4-dibenz [ a ] anthracene , picene , benzo [ a ] pyrene and 3-methylcholanthrene exhibited high to moderate binding affinities for the 4s and 9s cytosolic proteins ( ec50 values less than 10 ( -6 ) m ) and induced ahh in rat hepatoma cells ;
C1383501
cytosolic
C0007634
cells