Fig. 2From: The key amino acid sites 199–205, 269, 319, 321 and 324 of ALV-K env contribute to the weaker replication capacity of ALV-K than ALV-AComparison of replication competitive advantages between ALV-A and ALV-K based on RCASBP. a, c The replication capacities of RCASBP(A) and RCASBP(K) were observed by fluorescence microscopy. b, d The percentages of GFP/mCherry-positive DF-1 cells transfected with RCASBP(A)-EGFP and RCASBP(K)-EGFP were determined by flow cytometry. Three independent experiments were performed, and the data are shown as the means of triplicate samplesBack to article page