Fig. (5) Comparison of the AKAP79 expression in the heavy (H) and light (L) mitochondria. For each of 5 placentae one preparation of heavy and one preparation of light mitochondria was produced. For each preparation of light or heavy mitochondria, three aliquots were taken for SDS PAGE and Western blot. The intensities of the AKAP79 immuno-reactive protein bands in each preparation of heavy and light mitochondria from five different human placentae are shown. Values represent the mean ± S.E. of triplicate samples ■ - heavy mitochondria; ■- light mitochondria.