The authors of "Cdc42 Is Not Essential for Filopodium Formation,Directed Migration, Cell Polarization, and Mitosis in FibroblastoidCells" (Mol. Biol. Cell [2005] 16, 4473-4484; published onlinebefore print as 10.1091/mbc.E05-01-0061) would like to makea correction to their paper. Figure 2B, on page 4477, containsduplicate data for the 1 integrin and the data for the 2 integrinwas omitted. A corrected image is included below.