PMID- 10679425 OWN - NLM STAT- MEDLINE DCOM- 20000418 LR - 20191103 IS - 1369-5274 (Print) IS - 1369-5274 (Linking) VI - 3 IP - 1 DP - 2000 Feb TI - Endotoxin, toll-like receptor 4, and the afferent limb of innate immunity. PG - 23-8 AB - Positional cloning work and subsequent biochemical analyses have revealed that Toll-like receptor 4 (Tlr4) transduces the lipopolysaccharide (LPS) signal, alerting the host to infection by Gram-negative bacteria. Moreover, it appears that the LPS sensing pathway is a solitary one: disruption of Tlr4 causes complete unresponsiveness to LPS. As several Tlr family members exist in vertebrates, it appears likely that the innate immune system defends the host by recognizing a small number of structurally conserved molecules that distinguish the microbial world from tissues of the host. FAU - Beutler, B AU - Beutler B AD - Howard Hughes Medical institute, University of Texas, Southwestern Medical Center, Dallas, 75235-9050 TX, USA. LA - eng PT - Journal Article PT - Review PL - England TA - Curr Opin Microbiol JT - Current opinion in microbiology JID - 9815056 RN - 0 (Drosophila Proteins) RN - 0 (Endotoxins) RN - 0 (Lipopolysaccharides) RN - 0 (Membrane Glycoproteins) RN - 0 (Receptors, Cell Surface) RN - 0 (TLR4 protein, human) RN - 0 (Toll-Like Receptor 4) RN - 0 (Toll-Like Receptor 5) RN - 0 (Toll-Like Receptors) RN - 0 (tehao protein, Drosophila) SB - IM MH - Amino Acid Sequence MH - Animals MH - Drosophila/immunology MH - *Drosophila Proteins MH - Endotoxins/chemistry/metabolism MH - Gram-Negative Bacteria/*immunology/metabolism MH - Gram-Negative Bacterial Infections/*immunology MH - Humans MH - Immunity, Innate MH - Lipopolysaccharides/*metabolism MH - Membrane Glycoproteins/genetics/*metabolism MH - Molecular Sequence Data MH - Receptors, Cell Surface/genetics/*metabolism MH - Signal Transduction MH - Toll-Like Receptor 4 MH - Toll-Like Receptor 5 MH - Toll-Like Receptors RF - 48 EDAT- 2000/02/19 09:00 MHDA- 2000/04/25 09:00 CRDT- 2000/02/19 09:00 PHST- 2000/02/19 09:00 [pubmed] PHST- 2000/04/25 09:00 [medline] PHST- 2000/02/19 09:00 [entrez] AID - S1369-5274(99)00046-6 [pii] AID - 10.1016/s1369-5274(99)00046-6 [doi] PST - ppublish SO - Curr Opin Microbiol. 2000 Feb;3(1):23-8. doi: 10.1016/s1369-5274(99)00046-6.