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Comparison of HLA-A, HLA-B, and HLA-C promoter activities in HEK293T cells with trophoblast cell lines. Luciferase activity HLA-A, HLA-B, and HLA-C 220 bp core promoter constructs. The average activity of each construct shown is relative to the activity of the empty pGL3 vector in at least 4 independent experiments. Error bars represent +/− SEM.
