CeD patients with active disease had higher levels of KIR+CD8+ T cells in the gut compared with those in remission (on a gluten-free diet) as well as the non-CeD controls (Fig. 1B), which indicates a strong correlation of KIR+CD8+ T cell levels with disease severity. The gene discussed is KIR3DL1; the disease is cranioectodermal dysplasia.