Transient human LSP1 expression in CV1-COS cells. Shown are fluorescence photomicrographs of CV1-COS cells transiently transfected with pCMD8-huLSP1 expressing huLSP1 and double-labeled with anti-LSP1 with fluorescein tagged second antibody and rhodamine phalloidin for F-actin. Photomicrographs are (A) the rhodamine phalloidin image and (B) the huLSP1 image of the same cell. Note thin projections with F-actin and huLSP1 (arrowhead).