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Overview
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Recognizes the 116 kDa human Toll-like receptor 3 (TLR3, CD283). Toll-like receptors (TLRs)are highly conserved from Drosophila to humans and share structural and functional similarities. TLRsconstitute of a family of pattern recognition receptors (PRRs) that mediate cellular responses to a largevariety of pathogens (viruses, bacteria, and parasites) by specific recognition of so-called 'pathogen-associated molecular patterns'. TLRs have a central role in innate immunity and are also required forthe development of an adaptive immune response. TLRs are expressed by various cells of the immunesystem, such as macrophages and dendritic cells. TLRs are class I receptors, with a single alpha-helix thatspans the cell membrane. They recognize and respond to molecules derived from bacterial, viral andfungal pathogens, such as lipopolysaccharide (LPS) from the outer membrane of Gram negativebacteria, peptidoglycan fragments from bacterial cell walls and single-stranded and double-strandedRNA from viruses.
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Overview