(A) Illustration of clonal distribution of T cells across multiple tissues. The majority of T cell clones are found in multiple tissues and represent a variety of T cell subtypes. nk cell, natural killer cell. (B) Prevalence of B cell isotypes across tissues, ordered by decreasing abundance of IgA. (C) Expression levels of tissue-specific endothelial markers, shown as violin plots, in the entire dataset. Many of the markers are highly tissue specific and typically were derived from multiple donors, as follows: bladder (3 donors), eye (2), fat (2), heart (1), liver (2), lung (3), mammary (1), muscle (4), pancreas (2), prostate (2), salivary gland (2), skin (2), thymus (2), tongue (2), uterus (1), and vasculature (2). A detailed donor-tissue breakdown is available in table S2.