CD1d expression in CB HSCs. (A) MACS-selected live cord-blood CD34⁺ cells gated in R1 (i) were analyzed for expression of CD1d (iii) or isotypic control (ii). (B). Expression of primitive markers on CD1d⁺CD34⁺ and CD1d⁺CD34^– cells. Plots are gated in the combination of R1 + R2 gates in panel A. Representative plots are shown on the left and cumulative results on the right. Values and bars represent the mean and SEM respectively, n = 4.