Masashi Muroi et al.
The Journal of biological chemistry, 281(9), 5484-5491 (2006-01-13)
A cell surface receptor complex consisting of CD14, Toll-like receptor (TLR4), and MD-2 recognizes lipid A, the active moiety of lipopolysaccharide (LPS). Escherichia coli-type lipid A, a typical lipid A molecule, potently activates both human and mouse macrophage cells, whereas