by separately mixing ( 125 ) i-labeled myelin , synaptic vesicle , and mitochondrial fraction proteins with synaptosomes , and then isolating the density fraction from the mixture , it was concluded that a major 26,000 mol wt density fraction protein was common to both mitochondria and density , that none of the proteins of the density were contaminants from the mitochondrial fraction , that a minor approximately 150,000 band was a contaminant from the synaptic vesicle fraction , and that the moderately staining psd fraction protein of 17,000 mol wt band was the result of contamination by the major basic protein of myelin .
C0949610
mitochondrial
C0033684
protein