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The ability of the immune system to recognize molecules that are broadly shared by pathogens is, in part, due to the presence of immune receptors called toll-like receptors (TLRs) that are expressed on the membranes of leukocytes including dendritic cells, macrophages, natural killer cells, cells of the adaptive immunity T cells, and B cells, and non-immune cells (epithelial and endothelial ...
TLR4 belongs to the toll-like receptor family which is representative of the pattern recognition receptors (PRR), so named for their ability to recognize evolutionarily conserved components of microorganisms (bacteria, viruses, fungi and parasites) called pathogen-associated molecular patterns (PAMPs). The recognition of a PAMP by a PRR ...
Toll-like receptor 9 is a protein that in humans is encoded by the TLR9 gene. [5] TLR9 has also been designated as CD289 ( cluster of differentiation 289). It is a member of the toll-like receptor (TLR) family.
Toll-like receptor 1 (TLR1) is a member of the toll-like receptor (TLR) family of pattern recognition receptors (PRRs) that form the cornerstone of the innate immune system. [ 5 ] [ 6 ] [ 7 ] TLR1 recognizes bacterial lipoproteins and glycolipids in complex with TLR2 .
Ig-like domain is the part of receptor which is located extracellularly. There are minimal homologies in amino acid sequences of Ig-like domains between proteins of IL-1R family but they all show characteristic Ig-fold and two β-sheets joined together by disulfide bonds which form between cysteine residues. There are differences in number of ...
Ligand-receptor binding induces a change in the conformation of the inside part of the receptor, a process sometimes called "receptor activation". [25] This results in either the activation of an enzyme domain of the receptor or the exposure of a binding site for other intracellular signaling proteins within the cell, eventually propagating the ...
Toll-like receptor 2 also known as TLR2 is a protein that in humans is encoded by the TLR2 gene. [5] TLR2 has also been designated as CD282 ( cluster of differentiation 282). TLR2 is one of the toll-like receptors and plays a role in the immune system .
Toll-like receptor 5, also known as TLR5, is a protein which in humans is encoded by the TLR5 gene. [5] It is a member of the toll-like receptor (TLR) family. TLR5 is known to recognize bacterial flagellin from invading mobile bacteria. [ 6 ]