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基本情報
| 登録情報 | データベース: PDB / ID: 7c77 | ||||||
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| タイトル | Cryo-EM structure of mouse TLR3 in complex with UNC93B1 | ||||||
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キーワード | IMMUNE SYSTEM / Toll-like receptors / UNC93B1 / MFS | ||||||
| 機能・相同性 | 機能・相同性情報Trafficking and processing of endosomal TLR / positive regulation of type III interferon production / response to dsRNA / toll-like receptor 7 signaling pathway / regulation of dendritic cell cytokine production / regulation of toll-like receptor 3 signaling pathway / Toll-like receptor binding / inflammatory response to wounding / toll-like receptor 3 signaling pathway / toll-like receptor 9 signaling pathway ...Trafficking and processing of endosomal TLR / positive regulation of type III interferon production / response to dsRNA / toll-like receptor 7 signaling pathway / regulation of dendritic cell cytokine production / regulation of toll-like receptor 3 signaling pathway / Toll-like receptor binding / inflammatory response to wounding / toll-like receptor 3 signaling pathway / toll-like receptor 9 signaling pathway / necroptotic signaling pathway / early phagosome / positive regulation of cytokine production involved in inflammatory response / toll-like receptor signaling pathway / antigen processing and presentation / cellular response to exogenous dsRNA / pattern recognition receptor activity / response to exogenous dsRNA / positive regulation of interferon-alpha production / ubiquitin-like protein ligase binding / cellular response to interferon-beta / JNK cascade / extrinsic apoptotic signaling pathway / positive regulation of chemokine production / positive regulation of type I interferon production / positive regulation of interleukin-12 production / positive regulation of interferon-beta production / positive regulation of interleukin-8 production / defense response / cellular response to mechanical stimulus / microglial cell activation / intracellular protein transport / cellular response to virus / positive regulation of interleukin-6 production / positive regulation of JNK cascade / cellular response to type II interferon / male gonad development / cellular response to xenobiotic stimulus / antigen processing and presentation of exogenous peptide antigen via MHC class II / response to virus / positive regulation of type II interferon production / cell morphogenesis / positive regulation of angiogenesis / positive regulation of tumor necrosis factor production / positive regulation of inflammatory response / transmembrane signaling receptor activity / MAPK cascade / double-stranded RNA binding / signaling receptor activity / defense response to virus / adaptive immune response / early endosome / positive regulation of canonical NF-kappaB signal transduction / lysosome / endosome membrane / endosome / positive regulation of apoptotic process / inflammatory response / innate immune response / positive regulation of gene expression / endoplasmic reticulum membrane / cell surface / endoplasmic reticulum / positive regulation of transcription by RNA polymerase II / identical protein binding / plasma membrane / cytoplasm 類似検索 - 分子機能 | ||||||
| 生物種 | ![]() | ||||||
| 手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.3 Å | ||||||
データ登録者 | Ohto, U. / Ishida, H. / Shimizu, T. | ||||||
引用 | 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. | ||||||
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構造の表示
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| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 7c77.cif.gz | 230.5 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7c77.ent.gz | 180.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7c77.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/c7/7c77 ftp://data.pdbj.org/pub/pdb/validation_reports/c7/7c77 | HTTPS FTP |
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-関連構造データ
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リンク
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集合体
| 登録構造単位 | ![]()
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要素
| #1: タンパク質 | 分子量: 103785.797 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト) / 参照: UniProt: Q99MB1 | ||||||
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| #2: タンパク質 | 分子量: 67039.250 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト) / 参照: UniProt: Q8VCW4 | ||||||
| #3: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | ||||||
| #4: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #5: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | N | Has protein modification | Y | |
-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
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| EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
| 構成要素 | 名称: Complex of TLR3 and UNC93B1 / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: ![]() |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) / 細胞: Expi293F |
| 緩衝液 | pH: 7.5 / 詳細: 25 mM Hepes-NaOH, pH 7.5, 0.2 M NaCl, and 0.01% GDN |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TITAN KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: OTHER |
| 電子レンズ | モード: BRIGHT FIELD |
| 撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| CTF補正 | タイプ: NONE |
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| 3次元再構成 | 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 72000 / 対称性のタイプ: POINT |
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万見について






引用
UCSF Chimera










PDBj





Homo sapiens (ヒト)

