CB-CD34⁺ cells that do not bind P-selectin are also negative for E-selectin ligands. CB-CD34⁺ cells were sorted on the basis of P-selectin binding (P-Lig^neg and P-Lig^pos) using the gates shown in the upper panel. Sorted cells were then analyzed for P- or E-selectin binding. Shown is a representative experiment of 3. Note that many cells that bound to P-selectin did not interact with E-selectin.