Fig. (4) AKAP79 immunoreactivity in nuclei (N), microsomes (Mic) and mitochondria (Mit) from 3 different human placentae, (HP 1, 2 and 3). SDS PAGE, Western blotting and autoradiography results shown in a). A protein band of approximate size 80 kDa was detected in all fractions by the AKAP79 antibody (A). The relative intensity taken as percentage of the most intense band for each placenta (values represent the mean ± S.E.) of the 80 kDa bands shown in A) are plotted in B)