While GPR56 displayed an elevated expression as calculated by mean fluorescence intensity (MFI) values in CD34‐positive AML specimens (P < 0.001, see Supporting information, Figure S3A), CLL‐1 expression was higher in CD34‐negative AMLs (P < 0.0001, Supporting Information, Figure S3B). The gene discussed is ADGRG1; the disease is acute myeloid leukemia.