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Podocalyxin protein is not enriched in caveolae. Panel A: Western blot of homogenate from normal lung (H, 5 µg), normal lung P (P, 5 µg), caveolae (V, 2 µg), and the caveolae-depleted subfraction of P (P-V, 5µg) were probed with mAb G278. Strong signals are seen in NP and in P-V, but very little is seen in V indicating that podxl is expressed primarily outside of the caveolae.
