Figure 2

KIR gene content diversity in patients with breast cancer. Eighty-three distinct KIR genotypes were observed that differ from each other by the presence (shaded box) or absence (white box) of 16 KIR genes. The frequency (%F) of each genotype is expressed as a percentage and defined as the number of individuals having that specific genotype (N) divided by the number of individuals studied (n) in each group. The frequency of genotypes # 1, #40, and #42 was significantly different between patients and controls and are marked by dark boxes. The C4 and T4 linkage groups are marked by red and blue boxes, respectively.