receptor complex membrane part lipopolysaccharide receptor complex A multiprotein complex that consists of at least three proteins, CD14, TLR4, and MD-2, each of which is glycosylated and which functions as a lipopolysaccharide (LPS) receptor that primes the innate immune response against bacterial pathogens. GO:0046696 LPS receptor complex Note that this term should not be used to refer to CD14 alone, but the multiprotein receptor complex that it is part of. cellular_component go.owl pro.owl