+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7ypg | ||||||
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タイトル | Cryo-EM structure of amyloid fibril formed by tau (297-391) | ||||||
要素 | Isoform Tau-E of Microtubule-associated protein tau | ||||||
キーワード | PROTEIN FIBRIL / amyloid fibril (アミロイド) | ||||||
機能・相同性 | 機能・相同性情報 plus-end-directed organelle transport along microtubule / 軸索輸送 / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / 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 / 軸索輸送 / histone-dependent DNA binding / neurofibrillary tangle assembly / positive regulation of diacylglycerol kinase activity / 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 / regulation of long-term synaptic depression / negative regulation of kinase activity / negative regulation of tubulin deacetylation / generation of neurons / regulation of chromosome organization / positive regulation of protein localization / rRNA metabolic process / internal protein amino acid acetylation / regulation of mitochondrial fission / intracellular distribution of mitochondria / axonal transport of mitochondrion / axon development / central nervous system neuron development / regulation of microtubule polymerization / 微小管 / minor groove of adenine-thymine-rich DNA binding / lipoprotein particle binding / dynactin binding / glial cell projection / negative regulation of mitochondrial membrane potential / apolipoprotein binding / protein polymerization / negative regulation of mitochondrial fission / axolemma / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / positive regulation of axon extension / Activation of AMPK downstream of NMDARs / regulation of microtubule cytoskeleton organization / supramolecular fiber organization / stress granule assembly / regulation of cellular response to heat / cytoplasmic microtubule organization / regulation of calcium-mediated signaling / positive regulation of microtubule polymerization / axon cytoplasm / somatodendritic compartment / cellular response to brain-derived neurotrophic factor stimulus / synapse assembly / phosphatidylinositol binding / nuclear periphery / 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 / synapse organization / microglial cell activation / Hsp90 protein binding / regulation of synaptic plasticity / PKR-mediated signaling / protein homooligomerization / 記憶 / cellular response to reactive oxygen species / microtubule cytoskeleton organization / SH3 domain binding / cytoplasmic ribonucleoprotein granule / activation of cysteine-type endopeptidase activity involved in apoptotic process / neuron projection development / microtubule cytoskeleton / cell-cell signaling / protein-macromolecule adaptor activity / actin binding / single-stranded DNA binding / cellular response to heat / cell body / protein-folding chaperone binding / 成長円錐 / microtubule binding / double-stranded DNA binding / 微小管 / sequence-specific DNA binding / amyloid fibril formation / 樹状突起スパイン / learning or memory / nuclear speck / neuron projection / 脂質ラフト / 神経繊維 / negative regulation of gene expression / neuronal cell body / DNA damage response / 樹状突起 / protein kinase binding / enzyme binding / ミトコンドリア / DNA binding 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
手法 | 電子顕微鏡法 / らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 2.5 Å | ||||||
データ登録者 | Zhang, S.Q. / Li, X. / Liu, C. | ||||||
資金援助 | 1件
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引用 | ジャーナル: iScience / 年: 2022 タイトル: Subtle change of fibrillation condition leads to substantial alteration of recombinant Tau fibril structure. 著者: Xiang Li / Shenqing Zhang / Zhengtao Liu / Youqi Tao / Wencheng Xia / Yunpeng Sun / Cong Liu / Weidong Le / Bo Sun / Dan Li / 要旨: assembly of amyloid fibrils that recapitulate those in human brains is very useful for fundamental and applied research on the amyloid formation, pathology, and clinical detection. Recent success in ... assembly of amyloid fibrils that recapitulate those in human brains is very useful for fundamental and applied research on the amyloid formation, pathology, and clinical detection. Recent success in the assembly of Tau fibrils enables the recapitulation of the paired helical filament (PHF) of Tau extracted from brains of patients with Alzheimer's disease (AD). However, following the protocol, we observed that Tau constructs including 297-391 and a mixture of 266-391 (3R)/297-391, which are expected to predominantly form PHF-like fibrils, form highly heterogeneous fibrils instead. Moreover, the seemingly PHF-like fibril formed by Tau 297-391 exhibits a distinctive atomic structure with a spindle-like fold, that is neither PHF-like or similar to any known Tau fibril structures revealed by cryo-electron microscopy (cryo-EM). Our work highlights the high sensitivity of amyloid fibril formation to subtle conditional changes and suggests high-resolution structural characterization to assembled fibrils prior to further laboratory use. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7ypg.cif.gz | 70.2 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7ypg.ent.gz | 51.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7ypg.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/yp/7ypg ftp://data.pdbj.org/pub/pdb/validation_reports/yp/7ypg | HTTPS FTP |
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-関連構造データ
関連構造データ | 33999MC 7ymnC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-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: 10318.810 Da / 分子数: 6 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: MAPT, MAPTL, MTBT1, TAU / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P10636 |
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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: FILAMENT / 3次元再構成法: らせん対称体再構成法 |
-試料調製
構成要素 | 名称: Cryo-EM structure of amyloid fibril formed by tau (297-391) タイプ: ORGANELLE OR CELLULAR COMPONENT / Entity ID: all / 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: Escherichia coli (大腸菌) |
緩衝液 | pH: 7.4 |
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 |
-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: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELDBright-field microscopy / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 1400 nm |
撮影 | 電子線照射量: 55 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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らせん対称 | 回転角度/サブユニット: 179.43 ° / 軸方向距離/サブユニット: 4.82 Å / らせん対称軸の対称性: C1 |
3次元再構成 | 解像度: 2.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 354966 / 対称性のタイプ: HELICAL |