Fig. (1) SDS PAGE analysis of proteins in homogenate (H), nuclei (N), microsomes (Mic) and mitochondria (Mit) fractions from human placenta. Similar results were observed in a total of 3 different placentae. Gels stained with Coomassie are shown in A), densitometry scans of the lanes are shown in B) the positions at 65 kDa and 10 kDa are indicated with dotted lines.