PMID- 11191641 OWN - NLM STAT- MEDLINE DCOM- 20010201 LR - 20190701 IS - 0024-3205 (Print) IS - 0024-3205 (Linking) VI - 68 IP - 3 DP - 2000 Dec 8 TI - Structure and function of Toll-like receptor proteins. PG - 241-58 AB - Beginning in 1997 with the identification of the first human homologue of the Drosophila protein Toll, a family of related molecules have been identified in both humans and other mammals. These Toll-like receptor (TLR) proteins appear to represent a conserved family of innate immune recognition receptors. TLR proteins share extended homology with receptors for the cytokines interleukin 1 (IL-1) and interleukin 18 (IL-18). These receptors are coupled to a signaling pathway that is conserved in mammals, insects, and plants, resulting in cellular activation, thereby stimulating innate immune defenses. A variety of bacterial and fungal products have been identified that serve as TLR ligands, and more recent studies have identified the first endogenous protein ligands for TLR proteins. While TLR signaling is likely to be a key feature of innate immune responses, these proteins may also regulate homeostasis via interaction with endogenous protein ligands. FAU - Means, T K AU - Means TK AD - The Pulmonary Center, Boston University School of Medicine, Boston Medical Center, MA 02118, USA. FAU - Golenbock, D T AU - Golenbock DT FAU - Fenton, M J AU - Fenton MJ LA - eng PT - Journal Article PT - Review PL - Netherlands TA - Life Sci JT - Life sciences JID - 0375521 RN - 0 (Drosophila Proteins) RN - 0 (IL18R1 protein, human) RN - 0 (Il18r1 protein, mouse) RN - 0 (Interleukin-18 Receptor alpha Subunit) RN - 0 (Membrane Glycoproteins) RN - 0 (Receptors, Cell Surface) RN - 0 (Receptors, Interleukin) RN - 0 (Receptors, Interleukin-1) RN - 0 (Receptors, Interleukin-18) 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 MH - *Drosophila Proteins MH - Humans MH - Interleukin-18 Receptor alpha Subunit MH - Membrane Glycoproteins/*chemistry/*physiology MH - Mice MH - Molecular Sequence Data MH - Receptors, Cell Surface/*chemistry/*physiology MH - Receptors, Interleukin/chemistry/physiology MH - Receptors, Interleukin-1/chemistry/physiology MH - Receptors, Interleukin-18 MH - Sequence Homology, Amino Acid MH - Signal Transduction MH - Toll-Like Receptor 5 MH - Toll-Like Receptors RF - 86 EDAT- 2001/02/24 12:00 MHDA- 2001/02/28 10:01 CRDT- 2001/02/24 12:00 PHST- 2001/02/24 12:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2001/02/24 12:00 [entrez] AID - S0024320500009395 [pii] AID - 10.1016/s0024-3205(00)00939-5 [doi] PST - ppublish SO - Life Sci. 2000 Dec 8;68(3):241-58. doi: 10.1016/s0024-3205(00)00939-5.