F-actin and human LSP1 colocalize in hairlike projections of Sf9 cells. Shown are fluorescence photomicrographs of 48-hour huLSP1 baculovirus infected Sf9 cells double-labeled with both (A) anti-LSP1 and fluorescein-tagged second antibody and (B) rhodamine phalloidin for F-actin. Note both labels colocalize in the cells (arrowhead) and in hairs.