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Distribution of major classes of integral proteins between plasma membranes from leaves, xylem, and cambium/phloem. The distribution (number of proteins) of integral membrane proteins among plasma membranes from leaves (green), xylem (red), and cambium/phloem (blue) is shown. Only the 213 integral proteins (Fig. 2) classified as top rank are included. Carboh, carbohydrate metabolism.
