3.

Immunolocalization of PV1 by immunodifussion to stomatal diaphragms of caveolae in lung (A–B, E), stomatal diaphragms of TEC (D–E) and fenestral diaphragms (C–D, F), as detected with anti-PV1 antibodies directed against its C-terminus.(A–B) lung, C–E) kidney, (F) intestine. The label was found specifically associated with the stomatals and fenestral diaphragms at both fronts of the cell. No label was found on the plasmalemma proper, clathrin-coated pits and vesicles, intercellular junctions as well as non-endothelial cellular types. Bars 100 nm.