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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 7c76 | ||||||
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| タイトル | Cryo-EM structure of human TLR3 in complex with UNC93B1 | ||||||
要素 |
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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TLR3 deficiency - HSE / response to dsRNA / UNC93B1 deficiency - HSE / type III interferon production / positive regulation of type III interferon production / TICAM1 deficiency - HSE / TRAF3 deficiency - HSE / toll-like receptor 7 signaling pathway / T cell antigen processing and presentation / regulation of dendritic cell cytokine production ...TLR3 deficiency - HSE / response to dsRNA / UNC93B1 deficiency - HSE / type III interferon production / positive regulation of type III interferon production / TICAM1 deficiency - HSE / TRAF3 deficiency - HSE / toll-like receptor 7 signaling pathway / T cell antigen processing and presentation / regulation of dendritic cell cytokine production / Toll Like Receptor 3 (TLR3) Cascade / Toll-like receptor binding / inflammatory response to wounding / TLR3-mediated TICAM1-dependent programmed cell death / toll-like receptor 3 signaling pathway / activation of NF-kappaB-inducing kinase activity / detection of virus / toll-like receptor 9 signaling pathway / necroptotic signaling pathway / RIP-mediated NFkB activation via ZBP1 / early phagosome / positive regulation of cytokine production involved in inflammatory response / endolysosome membrane / Trafficking and processing of endosomal TLR / hyperosmotic response / positive regulation of macrophage cytokine production / toll-like receptor signaling pathway / cellular response to exogenous dsRNA / pattern recognition receptor activity / RSV-host interactions / response to exogenous dsRNA / negative regulation of osteoclast differentiation / ubiquitin-like protein ligase binding / positive regulation of interferon-alpha production / positive regulation of chemokine production / cellular response to interferon-beta / extrinsic apoptotic signaling pathway / JNK cascade / positive regulation of interleukin-12 production / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / extracellular matrix / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / positive regulation of interferon-beta production / TICAM1, RIP1-mediated IKK complex recruitment / positive regulation of interleukin-8 production / intracellular protein transport / microglial cell activation / cellular response to mechanical stimulus / antigen processing and presentation of exogenous peptide antigen via MHC class II / cellular response to virus / positive regulation of JNK cascade / cellular response to type II interferon / positive regulation of interleukin-6 production / cellular response to xenobiotic stimulus / male gonad development / 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 / signaling receptor activity / double-stranded RNA binding / defense response to virus / early endosome / lysosome / positive regulation of canonical NF-kappaB signal transduction / endosome / endosome membrane / defense response to bacterium / positive regulation of apoptotic process / Golgi membrane / innate immune response / lysosomal membrane / positive regulation of gene expression / endoplasmic reticulum membrane / endoplasmic reticulum / signal transduction / positive regulation of transcription by RNA polymerase II / extracellular space / identical protein binding / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト) | ||||||
| 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: 3.4 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. | ||||||
| 履歴 |
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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 | 7c76.cif.gz | 231 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7c76.ent.gz | 181.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7c76.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/c7/7c76 ftp://data.pdbj.org/pub/pdb/validation_reports/c7/7c76 | 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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| 1 |
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要素
| #1: タンパク質 | 分子量: 103946.320 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: TLR3 / 細胞株 (発現宿主): Expi293F / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: O15455 | ||||||||
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| #2: タンパク質 | 分子量: 66695.969 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: UNC93B1, UNC93, UNC93B / 細胞株 (発現宿主): Expi293F / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9H1C4 | ||||||||
| #3: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #4: 多糖 | #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: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) / 細胞: Expi293F |
| 緩衝液 | pH: 5.5 / 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 |
| 試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
| 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: 3.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 134000 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
引用
UCSF Chimera










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