The A' and F' pockets of human CD1b are both required for optimal presentation of lipid antigens to T cells
Niazi K, Chiu M, Mendoza R, Degano M, Khurana S, Moody D, Melian A, Wilson I, Kronenberg M, Porcelli S, Modlin R. The A' and F' pockets of human CD1b are both required for optimal presentation of lipid antigens to T cells. Journal of Immunology. 2001; 166(4):2562-2570.