the mitochondrial fraction was subjected to analytical subfractionation by sucrose density gradient centrifugation and the gradient fractions assayed for marker enzymes for the various mitochondrial compartments , viz outer membrane ( monoamine oxidase ) , intermembranous space ( adenylate kinase ) , inner membrane ( mg2+-dependent atpase and cytochrome c oxidase ) and mitochondrial matrix ( malate dehydrogenase ) , and for creatine kinase .
C0026237
mitochondrial
C1510421
mitochondrial matrix