Fig. 1From: A detailed analysis of F-MuLV- and SFFV-infected cells in Friend virus-infected mice reveals the contribution of both F-MuLV- and SFFV-infected cells to the interleukin-10 host responseDesign of the fluorescently labeled viruses. A The fluorescently labeled complex FV-Katushka-mTagBFP consists of Katushka-encoding F-MuLV (top) and mTagBFP-encoding SFFV (bottom). The open reading frames for the fluorescent proteins were fused to the envelope open reading frames via a 2A self-cleaving peptide. B Fluorescence microscopy image of M. dunni fibroblast cells infected with FV-Katushka-mTagBFP; red: Katushka, blue: mTagBFP; white bar: 100 μmBack to article page