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Transfer of dextran 3000 (A and B) and dextran 10,000 (C and D) in the absence (dotted lines) or presence (solid lines) of an SC3 membrane formed overnight at the paraffin oil/buffer interface from a protein solution of 100 μg/ml. Transfer was measured from buffer to paraffin oil (A and C) and from paraffin oil to buffer (B and D).
