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Figure S3. Increased lysis of HIV⁺ HLA-B Bw4-80I–transfected 221 cells by KIR3DS1⁺ NKLs. The bar graph represents the percent lysis of HIV⁺ and HIV⁻ transfected or untransfected 221 cells by an NKL cell line expressing KIR3DS1 plated at an E/T ratio of 20:1 (n = 3). Error bars represent the SD.