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. 2000 Nov 6;192(9):1261–1272. doi: 10.1084/jem.192.9.1261

Figure 1.

The acquisition of endosomal proteins by L. pneumophila vacuoles. Macrophages infected with L. pneumophila for the periods indicated were labeled with antibody specific for LAMP-1 or cathepsin D, then stained with DAPI. (A) At 8 h, L. pneumophila vacuoles rarely colocalized with LAMP-1 or cathepsin D (black arrowheads); after 16 h, many L. pneumophila vacuoles were ringed by LAMP-1 and contained cathepsin D (white arrowheads). The percentage of L. pneumophila vacuoles that contained either LAMP-1 (B) or cathepsin D (C) at the time indicated was scored in three separate experiments, each represented by a different symbol (circles, squares, or diamonds).

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