International Journal of Immunogenetics • Vol 52 • No 6
HLAtools, Searching Shared HLA Amino Acid Residue Prevalence, and the Global Frequency Browsers: New Computational Resources for Working With HLA Data and Visualizing Global Patterns of HLA Variation
September 2025 • Livia Tran, Ryan Nickens, Vinh Quang Luu, Effie W. Petersdorf, Steven J. Mack
ABSTRACT The highly polymorphic HLA genes inform susceptibility and resistance to infectious and autoimmune diseases and cancers and are key for successful solid‐organ and stem‐cell transplantation therapies. Over 41,000 HLA alleles are known and are unevenly distributed across the human population. Here, we describe HLAtools, Searching Shared HLA Amino‐Acid Residue Prevalence (SSHAARP) and the Global Frequency Browser (GFB), new informatic tools developed to facilitate working with HLA data and visualizing the gl…