FIG. 1.

Infectivity of VSVΔG* pseudotyped with MARV GPs in K562 cells expressing the C-type lectins. The infectivities of VSV-Angola and -Musoke were standardized using Vero E6 cells, as described in Materials and Methods, and approximately the same titers of viruses were used to infect K562/mock, K562/hMGL, and K562/DC-SIGN cells. The infected cells were counted using a flow cytometer, and the percentages of infectivity (i.e., relative infectivities) in K562/hMGL (A) and K562/DC-SIGN (B) cells were determined by setting the number of the infected K562/mock cells to 100% (46). All experiments were done in triplicate, and average results and standard deviations are shown. Statistical significance was determined by Student's t test. *, P < 0.05.