A SLe(x)-type proteoglycan, which through high affinity, calcium-dependent interactions with E-, P- and L-selectins, mediates rapid rolling of leukocytes over vascular surfaces during the initial steps in inflammation. Critical for the initial leukocyte capture.
(Microbial infection) Acts as a receptor for enterovirus 71.
Subcellular locations: Membrane
Expressed on neutrophils, monocytes and most lymphocytes.