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基本情報
登録情報 | データベース: EMDB / ID: EMD-6102 | |||||||||
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タイトル | Electron cryo-microscopy of DNGR-1 in complex with F-actin | |||||||||
![]() | Reconstruction of DNGR1 in complex with F-actin | |||||||||
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![]() | DNGR-1 / Actin / Damage-associated molecular patterns | |||||||||
機能・相同性 | ![]() positive regulation of norepinephrine uptake / cellular response to cytochalasin B / bBAF complex / npBAF complex / regulation of transepithelial transport / nBAF complex / brahma complex / morphogenesis of a polarized epithelium / protein localization to adherens junction / postsynaptic actin cytoskeleton ...positive regulation of norepinephrine uptake / cellular response to cytochalasin B / bBAF complex / npBAF complex / regulation of transepithelial transport / nBAF complex / brahma complex / morphogenesis of a polarized epithelium / protein localization to adherens junction / postsynaptic actin cytoskeleton / structural constituent of postsynaptic actin cytoskeleton / GBAF complex / Formation of annular gap junctions / Formation of the dystrophin-glycoprotein complex (DGC) / Tat protein binding / Gap junction degradation / regulation of G0 to G1 transition / Folding of actin by CCT/TriC / dense body / Cell-extracellular matrix interactions / regulation of nucleotide-excision repair / Prefoldin mediated transfer of substrate to CCT/TriC / RSC-type complex / apical protein localization / regulation of double-strand break repair / adherens junction assembly / RHOF GTPase cycle / Adherens junctions interactions / tight junction / Sensory processing of sound by outer hair cells of the cochlea / Interaction between L1 and Ankyrins / SWI/SNF complex / regulation of mitotic metaphase/anaphase transition / Sensory processing of sound by inner hair cells of the cochlea / positive regulation of T cell differentiation / regulation of norepinephrine uptake / apical junction complex / transporter regulator activity / nitric-oxide synthase binding / positive regulation of double-strand break repair / maintenance of blood-brain barrier / NuA4 histone acetyltransferase complex / establishment or maintenance of cell polarity / cortical cytoskeleton / positive regulation of stem cell population maintenance / Regulation of MITF-M-dependent genes involved in pigmentation / Recycling pathway of L1 / regulation of synaptic vesicle endocytosis / regulation of G1/S transition of mitotic cell cycle / brush border / kinesin binding / EPH-ephrin mediated repulsion of cells / negative regulation of cell differentiation / RHO GTPases Activate WASPs and WAVEs / positive regulation of myoblast differentiation / RHO GTPases activate IQGAPs / positive regulation of double-strand break repair via homologous recombination / regulation of protein localization to plasma membrane / cytoskeleton organization / EPHB-mediated forward signaling / substantia nigra development / calyx of Held / receptor-mediated endocytosis / axonogenesis / positive regulation of cytokine production / Translocation of SLC2A4 (GLUT4) to the plasma membrane / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / adherens junction / positive regulation of cell differentiation / actin filament / FCGR3A-mediated phagocytosis / cell motility / RHO GTPases Activate Formins / Signaling by high-kinase activity BRAF mutants / MAP2K and MAPK activation / DNA Damage Recognition in GG-NER / Schaffer collateral - CA1 synapse / B-WICH complex positively regulates rRNA expression / kinetochore / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / Regulation of actin dynamics for phagocytic cup formation / structural constituent of cytoskeleton / tau protein binding / VEGFA-VEGFR2 Pathway / platelet aggregation / cytoplasmic ribonucleoprotein granule / nuclear matrix / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / Signaling by BRAF and RAF1 fusions / UCH proteinases / nucleosome / cell-cell junction / lamellipodium / actin cytoskeleton / presynapse / Clathrin-mediated endocytosis / HATs acetylate histones 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 7.7 Å | |||||||||
![]() | Hanc P / Fujii T / Yamada Y / Huotari J / Schulz O / Ahrens S / Kjaer S / Way M / Namba K / Reis e Sousa C | |||||||||
![]() | ![]() タイトル: Structure of the Complex of F-Actin and DNGR-1, a C-Type Lectin Receptor Involved in Dendritic Cell Cross-Presentation of Dead Cell-Associated Antigens. 著者: Pavel Hanč / Takashi Fujii / Salvador Iborra / Yurika Yamada / Jatta Huotari / Oliver Schulz / Susan Ahrens / Svend Kjær / Michael Way / David Sancho / Keiichi Namba / Caetano Reis e Sousa / ![]() ![]() ![]() 要旨: DNGR-1 is a C-type lectin receptor that binds F-actin exposed by dying cells and facilitates cross-presentation of dead cell-associated antigens by dendritic cells. Here we present the structure of ...DNGR-1 is a C-type lectin receptor that binds F-actin exposed by dying cells and facilitates cross-presentation of dead cell-associated antigens by dendritic cells. Here we present the structure of DNGR-1 bound to F-actin at 7.7 Å resolution. Unusually for F-actin binding proteins, the DNGR-1 ligand binding domain contacts three actin subunits helically arranged in the actin filament, bridging over two protofilaments, as well as two neighboring actin subunits along one protofilament. Mutation of residues predicted to mediate ligand binding led to loss of DNGR-1-dependent cross-presentation of dead cell-associated antigens, formally demonstrating that the latter depends on F-actin recognition. Notably, DNGR-1 has relatively modest affinity for F-actin but multivalent interactions allow a marked increase in binding strength. Our findings shed light on modes of actin binding by cellular proteins and reveal how extracellular detection of cytoskeletal components by dedicated receptors allows immune monitoring of loss of cellular integrity. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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マップデータ | ![]() | 3.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 10.7 KB 10.7 KB | 表示 表示 | ![]() |
画像 | ![]() ![]() | 40.5 KB 4.3 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 329 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 328.6 KB | 表示 | |
XML形式データ | ![]() | 5.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Reconstruction of DNGR1 in complex with F-actin | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.37 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : F-actin complexed with mouse DNGR-1 extracellular domain
全体 | 名称: F-actin complexed with mouse DNGR-1 extracellular domain |
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要素 |
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-超分子 #1000: F-actin complexed with mouse DNGR-1 extracellular domain
超分子 | 名称: F-actin complexed with mouse DNGR-1 extracellular domain タイプ: sample / ID: 1000 / Number unique components: 1 |
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-分子 #1: DNGR-1
分子 | 名称: DNGR-1 / タイプ: protein_or_peptide / ID: 1 / Name.synonym: CLEC9A / 組換発現: Yes |
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由来(天然) | 生物種: ![]() ![]() |
組換発現 | 生物種: ![]() ![]() |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.5 詳細: 25mM Hepes buffer (pH 7.5), 100mM KCl, 1mM MgCl2, 1mM ATP |
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グリッド | 詳細: R0.6/1.0, Quantifoil |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 90 % / 装置: FEI VITROBOT MARK II |
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電子顕微鏡法
顕微鏡 | JEOL 3200FSC |
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温度 | 最低: 50 K / 最高: 60 K / 平均: 55 K |
特殊光学系 | エネルギーフィルター - 名称: JEOL Omega filter エネルギーフィルター - エネルギー下限: 0.0 eV エネルギーフィルター - エネルギー上限: 20.0 eV |
日付 | 2012年12月10日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: TVIPS TEMCAM-F416 (4k x 4k) 実像数: 774 / 平均電子線量: 20 e/Å2 |
電子線 | 加速電圧: 200 kV / 電子線源: ![]() |
電子光学系 | 倍率(補正後): 109489 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 1.6 mm / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 1.0 µm / 倍率(公称値): 60000 |
試料ステージ | 試料ホルダーモデル: JEOL 3200FSC CRYOHOLDER |
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画像解析
CTF補正 | 詳細: Each Particle |
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最終 再構成 | アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 7.7 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: Spider, EMAN / 使用した粒子像数: 73608 |