%0 Journal Article %T Killer cell immunoglobulin¨Clike receptor 3DL1 variation modifies HLA-B*57 protection against HIV-1 %A Andrew G. Brooks %A Bernard A. Lafont %A Bruce D. Walker %A David A. Price %A David W. Haas %A Emma Gostick %A Florencia P. Segal %A Jacqueline Widjaja %A Jacques Fellay %A James J. Goedert %A Jamie Rossjohn %A Jonathan M. Carlson %A Julian P. Vivian %A Mark Connors %A Mary Carrington %A Maureen P. Martin %A Nelson Michael %A Nicolas Vince %A Patrick R. Shea %A Philippa M. Saunders %A Phillip Pymm %A Rasmi Thomas %A Shu Cheng Wong %A Sian Llewellyn-Lacey %A Stephen A. Migueles %A Steven G. Deeks %A Steven M. Wolinsky %A Veron Ramsuran %A Vivek Naranbhai %A Xiaojiang Gao %A Ying Qi %A Zabrina L. Brumme %J The Journal of Clinical Investigation %D 2018 %R 10.1172/JCI98463 %X HLA-B*57 control of HIV involves enhanced CD8+ T cell responses against infected cells, but extensive heterogeneity exists in the level of HIV control among B*57+ individuals. Using whole-genome sequencing of untreated B*57+ HIV-1¨Cinfected controllers and noncontrollers, we identified a single variant (rs643347A/G) encoding an isoleucine-to-valine substitution at position 47 (I47V) of the inhibitory killer cell immunoglobulin-like receptor KIR3DL1 as the only significant modifier of B*57 protection. The association was replicated in an independent cohort and across multiple outcomes. The modifying effect of I47V was confined to B*57:01 and was not observed for the closely related B*57:03. Positions 2, 47, and 54 tracked one another nearly perfectly, and 2 KIR3DL1 allotypes differing only at these 3 positions showed significant differences in binding B*57:01 tetramers, whereas the protective allotype showed lower binding. Thus, variation in an immune NK cell receptor that binds B*57:01 modifies its protection. These data highlight the exquisite specificity of KIR-HLA interactions in human health and disease %U https://www.jci.org/articles/view/98463