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. Author manuscript; available in PMC: 2013 Oct 9.
Published in final edited form as: Innate Immun. 2011 Oct 31;18(4):563–570. doi: 10.1177/1753425911426893

Fig. 1. The expression of X-DING-CD4 mRNA is induced in HIV-1 resistant cells.

Fig. 1

The expression of X-DING-CD4 gene was tested by qRT-PCR using X-DING-CD4 gene specific primers. Different samples of cell cultures were exposed to HIV-1 as described in Materials and Methods throughout a period of one year. The fold change was calculated as a fold increase or decrease of the X-DING-CD4 mRNA absolute copy number between the experimental sample and the uninfected control. The X-DING-CD4(+) and X-DING-CD4(−) denote the HIV-1 resistant CD4+T cell line previously known as HRF(+) and HIV-1 susceptible CEM cells. The P value for 24hr time point was derived from the Mann-Whitney rank sum test; the alpha level was set at 0.050