+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-16883 | |||||||||
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タイトル | Structure of the Fmoc-Tau-PAM4 Type 3 amyloid fibril | |||||||||
マップデータ | Final postprocessed, sharpened, helical symmetrised map of the Fmoc-TauPAM4 fibril morphology IIa | |||||||||
試料 |
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キーワード | amyloid / tau / helical / cross-beta / fibril / neurodegeneration / Fmoc / PROTEIN FIBRIL | |||||||||
機能・相同性 | 機能・相同性情報 plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / axonal transport / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / positive regulation of protein localization to synapse / microtubule lateral binding / tubulin complex ...plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / axonal transport / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / positive regulation of protein localization to synapse / microtubule lateral binding / tubulin complex / phosphatidylinositol bisphosphate binding / main axon / negative regulation of kinase activity / regulation of long-term synaptic depression / negative regulation of tubulin deacetylation / generation of neurons / rRNA metabolic process / internal protein amino acid acetylation / regulation of chromosome organization / regulation of mitochondrial fission / axonal transport of mitochondrion / intracellular distribution of mitochondria / axon development / central nervous system neuron development / regulation of microtubule polymerization / apolipoprotein binding / microtubule polymerization / lipoprotein particle binding / minor groove of adenine-thymine-rich DNA binding / dynactin binding / negative regulation of mitochondrial membrane potential / glial cell projection / protein polymerization / axolemma / negative regulation of mitochondrial fission / regulation of microtubule polymerization or depolymerization / Caspase-mediated cleavage of cytoskeletal proteins / positive regulation of axon extension / regulation of microtubule cytoskeleton organization / Activation of AMPK downstream of NMDARs / regulation of cellular response to heat / cytoplasmic microtubule organization / positive regulation of protein localization / supramolecular fiber organization / stress granule assembly / regulation of calcium-mediated signaling / axon cytoplasm / somatodendritic compartment / positive regulation of microtubule polymerization / synapse assembly / cellular response to brain-derived neurotrophic factor stimulus / nuclear periphery / phosphatidylinositol binding / cellular response to nerve growth factor stimulus / positive regulation of superoxide anion generation / protein phosphatase 2A binding / regulation of autophagy / astrocyte activation / response to lead ion / microglial cell activation / synapse organization / Hsp90 protein binding / protein homooligomerization / PKR-mediated signaling / regulation of synaptic plasticity / : / memory / SH3 domain binding / microtubule cytoskeleton organization / cytoplasmic ribonucleoprotein granule / cellular response to reactive oxygen species / microtubule cytoskeleton / neuron projection development / cell-cell signaling / protein-folding chaperone binding / single-stranded DNA binding / actin binding / cellular response to heat / protein-macromolecule adaptor activity / double-stranded DNA binding / growth cone / cell body / microtubule binding / sequence-specific DNA binding / microtubule / amyloid fibril formation / dendritic spine / learning or memory / nuclear speck / neuron projection / membrane raft / axon / negative regulation of gene expression / neuronal cell body / DNA damage response / dendrite / protein kinase binding / enzyme binding / mitochondrion / DNA binding 類似検索 - 分子機能 | |||||||||
生物種 | synthetic construct (人工物) | |||||||||
手法 | らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 2.7 Å | |||||||||
データ登録者 | Wilkinson M / Louros N / Tsaka G / Ramakers M / Morelli C / Garcia T / Gallardo RU / D'Haeyer S / Goossens V / Audenaert D ...Wilkinson M / Louros N / Tsaka G / Ramakers M / Morelli C / Garcia T / Gallardo RU / D'Haeyer S / Goossens V / Audenaert D / Thal DR / Ranson NA / Radford SE / Rousseau F / Schymkowitz J | |||||||||
資金援助 | ベルギー, 1件
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引用 | ジャーナル: Nat Commun / 年: 2024 タイトル: Local structural preferences in shaping tau amyloid polymorphism. 著者: Nikolaos Louros / Martin Wilkinson / Grigoria Tsaka / Meine Ramakers / Chiara Morelli / Teresa Garcia / Rodrigo Gallardo / Sam D'Haeyer / Vera Goossens / Dominique Audenaert / Dietmar Rudolf ...著者: Nikolaos Louros / Martin Wilkinson / Grigoria Tsaka / Meine Ramakers / Chiara Morelli / Teresa Garcia / Rodrigo Gallardo / Sam D'Haeyer / Vera Goossens / Dominique Audenaert / Dietmar Rudolf Thal / Ian R Mackenzie / Rosa Rademakers / Neil A Ranson / Sheena E Radford / Frederic Rousseau / Joost Schymkowitz / 要旨: Tauopathies encompass a group of neurodegenerative disorders characterised by diverse tau amyloid fibril structures. The persistence of polymorphism across tauopathies suggests that distinct ...Tauopathies encompass a group of neurodegenerative disorders characterised by diverse tau amyloid fibril structures. The persistence of polymorphism across tauopathies suggests that distinct pathological conditions dictate the adopted polymorph for each disease. However, the extent to which intrinsic structural tendencies of tau amyloid cores contribute to fibril polymorphism remains uncertain. Using a combination of experimental approaches, we here identify a new amyloidogenic motif, PAM4 (Polymorphic Amyloid Motif of Repeat 4), as a significant contributor to tau polymorphism. Calculation of per-residue contributions to the stability of the fibril cores of different pathologic tau structures suggests that PAM4 plays a central role in preserving structural integrity across amyloid polymorphs. Consistent with this, cryo-EM structural analysis of fibrils formed from a synthetic PAM4 peptide shows that the sequence adopts alternative structures that closely correspond to distinct disease-associated tau strains. Furthermore, in-cell experiments revealed that PAM4 deletion hampers the cellular seeding efficiency of tau aggregates extracted from Alzheimer's disease, corticobasal degeneration, and progressive supranuclear palsy patients, underscoring PAM4's pivotal role in these tauopathies. Together, our results highlight the importance of the intrinsic structural propensity of amyloid core segments to determine the structure of tau in cells, and in propagating amyloid structures in disease. | |||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_16883.map.gz | 20.8 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-16883-v30.xml emd-16883.xml | 18.6 KB 18.6 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_16883_fsc.xml | 10.6 KB | 表示 | FSCデータファイル |
画像 | emd_16883.png | 78 KB | ||
Filedesc metadata | emd-16883.cif.gz | 6 KB | ||
その他 | emd_16883_half_map_1.map.gz emd_16883_half_map_2.map.gz | 80.7 MB 80.7 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-16883 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-16883 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_16883_validation.pdf.gz | 818.4 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_16883_full_validation.pdf.gz | 817.9 KB | 表示 | |
XML形式データ | emd_16883_validation.xml.gz | 18 KB | 表示 | |
CIF形式データ | emd_16883_validation.cif.gz | 23.6 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-16883 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-16883 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_16883.map.gz / 形式: CCP4 / 大きさ: 103 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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注釈 | Final postprocessed, sharpened, helical symmetrised map of the Fmoc-TauPAM4 fibril morphology IIa | ||||||||||||||||||||||||||||||||||||
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: 0.94 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: halfmap2
ファイル | emd_16883_half_map_1.map | ||||||||||||
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注釈 | halfmap2 | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: halfmap1
ファイル | emd_16883_half_map_2.map | ||||||||||||
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注釈 | halfmap1 | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
-全体 : Amyloid fibril form 2a of Tau-PAM4 peptide adducted with the Fmoc...
全体 | 名称: Amyloid fibril form 2a of Tau-PAM4 peptide adducted with the Fmoc protection group |
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要素 |
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-超分子 #1: Amyloid fibril form 2a of Tau-PAM4 peptide adducted with the Fmoc...
超分子 | 名称: Amyloid fibril form 2a of Tau-PAM4 peptide adducted with the Fmoc protection group タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all / 詳細: Synthesised peptide assembled into amyloid fibril |
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由来(天然) | 生物種: synthetic construct (人工物) |
-分子 #1: Microtubule-associated protein tau
分子 | 名称: Microtubule-associated protein tau / タイプ: protein_or_peptide / ID: 1 詳細: 13-residue peptide of the PAM4 motif of Tau, corresponding to residues 350-362 of the Tau repeat domain. The peptide is C-terminally amidated and should have been N-terminally acetylated but ...詳細: 13-residue peptide of the PAM4 motif of Tau, corresponding to residues 350-362 of the Tau repeat domain. The peptide is C-terminally amidated and should have been N-terminally acetylated but 10% of the peptide (by mass spec) was still adducted to the Fmoc protection group from peptide synthesis. This contaminant species dominated fibril assembly コピー数: 24 / 光学異性体: LEVO |
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由来(天然) | 生物種: synthetic construct (人工物) |
分子量 | 理論値: 1.652269 KDa |
配列 | 文字列: (VP1)VQSKIGSLD NIT(HIA) UniProtKB: Microtubule-associated protein tau |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | らせん対称体再構成法 |
試料の集合状態 | filament |
-試料調製
濃度 | 0.6 mg/mL |
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緩衝液 | pH: 7 詳細: Peptide resuspended in MilliQ water for aggregation reaction |
グリッド | モデル: EMS Lacey Carbon / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: LACEY / 前処理 - タイプ: PLASMA CLEANING / 前処理 - 時間: 60 sec. |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 90 % / チャンバー内温度: 279 K / 装置: FEI VITROBOT MARK IV |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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特殊光学系 | エネルギーフィルター - 名称: TFS Selectris / エネルギーフィルター - スリット幅: 10 eV |
撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) デジタル化 - サイズ - 横: 4096 pixel / デジタル化 - サイズ - 縦: 4096 pixel / 撮影したグリッド数: 1 / 実像数: 1957 / 平均露光時間: 5.0 sec. / 平均電子線量: 32.0 e/Å2 詳細: Movies were collected as 1204 EER frames compressed and re-grouped into 35 TIF fractions |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | C2レンズ絞り径: 50.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.4 µm / 最小 デフォーカス(公称値): 1.2 µm / 倍率(公称値): 130000 |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
+画像解析
-原子モデル構築 1
詳細 | Initial model built manually in coot, no starting template |
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精密化 | 空間: REAL / プロトコル: AB INITIO MODEL / 温度因子: 48 当てはまり具合の基準: Cross-correlation coefficient |
得られたモデル | PDB-8ohp: |