Fig. 2.

Western blot of cellular membrane protein contaminants: Though both methods of purification appear to produce similar levels of cellular contaminants, the nature of the contaminants are markedly different. The Benzonase^® purification method consists primarily of nuclear membrane proteins with a very slight amount of mitochondrial contamination, while the Genetron^® purification method contaminants are comprised primarily of plasma membrane proteins with some cystolic contaminants and varying mitochondrial contaminants.