Figure 6. Many HLA-restricted TCR clusters contain TCR chains annotated as pathogen-responsive.
Each point represents one of the significant HLA-restricted TCR clusters, plotted based on a normalized cluster size score (, -axis) and an aggregate TCR co-occurrence score for the member TCRs (, -axis). Markers are colored by the locus of the restricting HLA allele and sized based on the strength of the association between cluster member TCRs and the HLA allele. The database annotations associated to TCRs in each cluster are summarized with text labels using the following abbreviations: B19 = parvovirus B19, INF = influenza, EBV = Epstein Barr Virus, RA = rheumatoid arthritis, MS = multiple sclerosis, MELA = melanoma, T1D = type one diabetes, CMV = cytomegalovirus. Clusters labeled ‘coCMV’ are significantly associated () with CMV seropositivity (see main text discussion of cluster #3). Clusters labeled 1–5 are discussed in the text and examined in greater detail in Figure 7 and Figure 8.

