+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7cyn | ||||||
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タイトル | Cryo-EM structure of human TLR7 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 Defective regulation of TLR7 by endogenous ligand / UNC93B1 deficiency - HSE / Toll Like Receptor 7/8 (TLR7/8) Cascade / T cell antigen processing and presentation / toll-like receptor 7 signaling pathway / I-kappaB phosphorylation / MyD88 dependent cascade initiated on endosome / TRAF6 mediated induction of NFkB and MAP kinases upon TLR7/8 or 9 activation / Toll-like receptor binding / response to cGMP ...Defective regulation of TLR7 by endogenous ligand / UNC93B1 deficiency - HSE / Toll Like Receptor 7/8 (TLR7/8) Cascade / T cell antigen processing and presentation / toll-like receptor 7 signaling pathway / I-kappaB phosphorylation / MyD88 dependent cascade initiated on endosome / TRAF6 mediated induction of NFkB and MAP kinases upon TLR7/8 or 9 activation / Toll-like receptor binding / response to cGMP / toll-like receptor 3 signaling pathway / Regulation of TLR by endogenous ligand / toll-like receptor 9 signaling pathway / endolysosome membrane / siRNA binding / early phagosome / Trafficking and processing of endosomal TLR / positive regulation of macrophage cytokine production / pattern recognition receptor activity / toll-like receptor signaling pathway / RSV-host interactions / positive regulation of interferon-alpha production / canonical NF-kappaB signal transduction / positive regulation of chemokine production / JNK cascade / positive regulation of interleukin-12 production / positive regulation of interferon-beta production / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / positive regulation of interleukin-8 production / intracellular protein transport / regulation of protein phosphorylation / cell morphogenesis / cellular response to virus / cellular response to mechanical stimulus / positive regulation of inflammatory response / positive regulation of interleukin-6 production / positive regulation of non-canonical NF-kappaB signal transduction / positive regulation of type II interferon production / antigen processing and presentation of exogenous peptide antigen via MHC class II / SARS-CoV-1 activates/modulates innate immune responses / double-stranded RNA binding / defense response to virus / positive regulation of canonical NF-kappaB signal transduction / Potential therapeutics for SARS / lysosome / single-stranded RNA binding / receptor complex / endosome membrane / endosome / inflammatory response / Golgi membrane / innate immune response / endoplasmic reticulum membrane / SARS-CoV-2 activates/modulates innate and adaptive immune responses / endoplasmic reticulum / positive regulation of transcription by RNA polymerase II / 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: 4.2 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
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7cyn.cif.gz | 460.9 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7cyn.ent.gz | 369.6 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7cyn.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
文書・要旨 | 7cyn_validation.pdf.gz | 1016.2 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7cyn_full_validation.pdf.gz | 1 MB | 表示 | |
XML形式データ | 7cyn_validation.xml.gz | 68.6 KB | 表示 | |
CIF形式データ | 7cyn_validation.cif.gz | 103 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/cy/7cyn ftp://data.pdbj.org/pub/pdb/validation_reports/cy/7cyn | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 121060.586 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: TLR7, UNQ248/PRO285 / 細胞株 (発現宿主): Expi293F / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9NYK1 #2: タンパク質 | 分子量: 66695.969 Da / 分子数: 2 / 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 | #4: 糖 | 研究の焦点であるリガンドがあるか | N | Has protein modification | Y | |
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-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 |
-試料調製
構成要素 | 名称: Complex of TLR7 and UNC93B1 / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
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 |
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 |
-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) |
-解析
CTF補正 | タイプ: NONE |
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対称性 | 点対称性: C2 (2回回転対称) |
3次元再構成 | 解像度: 4.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 175000 / 対称性のタイプ: POINT |