Ceramide kinase promotes Ca2+ signaling near IgG-opsonized targets and enhances phagolysosomal fusion in COS-1 cellss⃞ oleh Vania Hinkovska-Galcheva, Andrea Clark, Susan VanWay, Ji-Biao Huang, Miki Hiraoka, Akira Abe, Michael Borofsky, Robin G. Kunkel, Thomas Shanley, James A. Shayman, Frederick Lanni, Howard R. Petty, Laurence A. Boxer