Figure 6From: A formylpeptide receptor, FPRL1, acts as an efficient coreceptor for primary isolates of human immunodeficiency virusUse of FPRL1, CCR5, CXCR4 or GPR1 as a coreceptor by HIV-2 and SIV strains. The susceptibilities of cells to four HIV-2 strains and two SIV strains were determined by IFA six days after viral inoculation. NP-2/CD4 cells were completely resistant to these HIV-2 strains (E). These results are summarized (see Additional file 2).Back to article page