...in humans ( Trowsdale 2001 ). They are encoded by large, polymorphic, gene-dense clusters in the Major Histocompatibility Complex (MHC), the Leukocyte Receptor Complex (LRC), and the Natural Killer Complex (NKC) found on chromosomes 6p21.3, 19q13.4,
and 12p13.1, respectively. The killer immunoglobulin...