Colocalization of AcGFP-BmAgo3 and mCherry-BmDcp2 in BmN4 cells. Line scans (white line in the enlarged region) show that Siwi-D670A mutant but not BmAgo3-D697A mutant overlaps with BmDcp2 foci. Line scans of fluorescence intensity were normalized to the highest value and depicted at the right panel. Scale bar, 8 μm. 