- EMDB-30294: Cryo-EM structure of mouse TLR3 in complex with UNC93B1 -
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基本情報
登録情報
データベース: EMDB / ID: EMD-30294
タイトル
Cryo-EM structure of mouse TLR3 in complex with UNC93B1
マップデータ
試料
複合体: Complex of TLR3 and UNC93B1
タンパク質・ペプチド: Toll-like receptor 3
タンパク質・ペプチド: Protein unc-93 homolog B1
リガンド: 2-acetamido-2-deoxy-beta-D-glucopyranose
キーワード
Toll-like receptors / UNC93B1 / MFS / IMMUNE SYSTEM
機能・相同性
機能・相同性情報
Trafficking and processing of endosomal TLR / type III interferon production / positive regulation of type III interferon production / toll-like receptor 7 signaling pathway / T cell antigen processing and presentation / regulation of dendritic cell cytokine production / Toll-like receptor binding / inflammatory response to wounding / toll-like receptor 3 signaling pathway / necroptotic signaling pathway ...Trafficking and processing of endosomal TLR / type III interferon production / positive regulation of type III interferon production / toll-like receptor 7 signaling pathway / T cell antigen processing and presentation / regulation of dendritic cell cytokine production / Toll-like receptor binding / inflammatory response to wounding / toll-like receptor 3 signaling pathway / necroptotic signaling pathway / toll-like receptor 9 signaling pathway / early phagosome / positive regulation of cytokine production involved in inflammatory response / positive regulation of macrophage cytokine production / toll-like receptor signaling pathway / pattern recognition receptor activity / cellular response to exogenous dsRNA / antigen processing and presentation / response to exogenous dsRNA / ubiquitin-like protein ligase binding / positive regulation of interferon-alpha production / positive regulation of type I interferon production / cellular response to interferon-beta / positive regulation of chemokine production / JNK cascade / extrinsic apoptotic signaling pathway / positive regulation of interleukin-12 production / positive regulation of interferon-beta production / positive regulation of interleukin-8 production / positive regulation of JNK cascade / intracellular protein transport / microglial cell activation / cellular response to mechanical stimulus / positive regulation of non-canonical NF-kappaB signal transduction / defense response / antigen processing and presentation of exogenous peptide antigen via MHC class II / cellular response to virus / cellular response to type II interferon / positive regulation of interleukin-6 production / response to virus / male gonad development / cellular response to xenobiotic stimulus / positive regulation of type II interferon production / cell morphogenesis / positive regulation of angiogenesis / positive regulation of tumor necrosis factor production / transmembrane signaling receptor activity / MAPK cascade / double-stranded RNA binding / defense response to virus / early endosome / endosome membrane / lysosome / positive regulation of canonical NF-kappaB signal transduction / endosome / positive regulation of apoptotic process / innate immune response / endoplasmic reticulum membrane / cell surface / endoplasmic reticulum / positive regulation of transcription by RNA polymerase II / identical protein binding / plasma membrane 類似検索 - 分子機能
ジャーナル: Nat Struct Mol Biol / 年: 2021 タイトル: Cryo-EM structures of Toll-like receptors in complex with UNC93B1. 著者: Hanako Ishida / Jinta Asami / Zhikuan Zhang / Tomohiro Nishizawa / Hideki Shigematsu / Umeharu Ohto / Toshiyuki Shimizu / 要旨: Nucleic acid-sensing Toll-like receptors (TLRs) play a pivotal role in innate immunity by recognizing foreign DNA and RNA. Compartmentalization of these TLRs in the endosome limits their activation ...Nucleic acid-sensing Toll-like receptors (TLRs) play a pivotal role in innate immunity by recognizing foreign DNA and RNA. Compartmentalization of these TLRs in the endosome limits their activation by self-derived nucleic acids and reduces the possibility of autoimmune reactions. Although chaperone Unc-93 homolog B1, TLR signaling regulator (UNC93B1) is indispensable for the trafficking of TLRs from the endoplasmic reticulum to the endosome, mechanisms of UNC93B1-mediated TLR regulation remain largely unknown. Here, we report two cryo-EM structures of human and mouse TLR3-UNC93B1 complexes and a human TLR7-UNC93B1 complex. UNC93B1 exhibits structural similarity to the major facilitator superfamily transporters. Both TLRs interact with the UNC93B1 amino-terminal six-helix bundle through their transmembrane and luminal juxtamembrane regions, but the complexes of TLR3 and TLR7 with UNC93B1 differ in their oligomerization state. The structural information provided here should aid in designing compounds to combat autoimmune diseases.