the detergent-labile association of the sulphate-activating system with the mitoplasts ( similar to that of adenylate kinase ) , the fact that most of the adenosine 3'-phosphate 5'-phosphosulphate formed by intact mitochondria is found in the surrounding medium , and the ease with which nucleotide substrates reach the activating system in intact organelles , suggest that the enzymes of sulphate activation are located on the outer surface of the mitochondrial inner membrane .
C0026237
mitochondria
C0230839
outer