MD-2 expression is not required for cell surface targeting of Toll-like receptor 4 (TLR4).
Visintin A, Halmen KA, Khan N, Monks BG, Golenbock DT, Lien E. MD-2 expression is not required for cell surface targeting of Toll-like receptor 4 (TLR4). J Leukoc Biol. 2006 Dec; 80(6):1584-92.