A mixture of hydroxy and non-hydroxy globotriaosylceramides isolated from porcine RBCs; found in mammalian cell membranes; act as receptors for Shiga and Shiga-like toxins in vitro and in vivo; accumulate in various cells in patients with Fabry disease; interacts with HIV gp120 to prevent its interaction with chemokine co-receptors and subsequent fusion of HIV to host cell membranes,