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基本情報
登録情報 | データベース: PDB / ID: 8fnz | ||||||||||||
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タイトル | Acetylated tau repeat 1 and 2 fragment (AcR1R2) | ||||||||||||
![]() | Microtubule-associated protein tau, acetylated repeat 1 and 2 fragment | ||||||||||||
![]() | PROTEIN FIBRIL / Amyloid motif acetylation tau repeat domain post-translational modification | ||||||||||||
機能・相同性 | ![]() plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / main axon / phosphatidylinositol bisphosphate binding / regulation of long-term synaptic depression / tubulin complex ...plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of establishment of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / main axon / phosphatidylinositol bisphosphate binding / regulation of long-term synaptic depression / tubulin complex / positive regulation of protein localization to synapse / negative regulation of tubulin deacetylation / generation of neurons / regulation of chromosome organization / rRNA metabolic process / axonal transport of mitochondrion / regulation of mitochondrial fission / axon development / central nervous system neuron development / intracellular distribution of mitochondria / regulation of microtubule polymerization / microtubule polymerization / lipoprotein particle binding / minor groove of adenine-thymine-rich DNA binding / dynactin binding / negative regulation of mitochondrial membrane potential / apolipoprotein binding / axolemma / protein polymerization / glial cell projection / negative regulation of mitochondrial fission / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / positive regulation of axon extension / neurofibrillary tangle assembly / Activation of AMPK downstream of NMDARs / regulation of cellular response to heat / synapse assembly / supramolecular fiber organization / positive regulation of protein localization / regulation of calcium-mediated signaling / somatodendritic compartment / cellular response to brain-derived neurotrophic factor stimulus / cytoplasmic microtubule organization / positive regulation of microtubule polymerization / axon cytoplasm / stress granule assembly / phosphatidylinositol binding / regulation of microtubule cytoskeleton organization / nuclear periphery / protein phosphatase 2A binding / positive regulation of superoxide anion generation / cellular response to reactive oxygen species / astrocyte activation / Hsp90 protein binding / microglial cell activation / cellular response to nerve growth factor stimulus / response to lead ion / synapse organization / PKR-mediated signaling / protein homooligomerization / regulation of synaptic plasticity / SH3 domain binding / memory / microtubule cytoskeleton organization / cytoplasmic ribonucleoprotein granule / neuron projection development / cell-cell signaling / single-stranded DNA binding / protein-folding chaperone binding / actin binding / cellular response to heat / microtubule cytoskeleton / cell body / growth cone / double-stranded DNA binding / microtubule binding / protein-macromolecule adaptor activity / dendritic spine / sequence-specific DNA binding / amyloid fibril formation / microtubule / learning or memory / neuron projection / regulation of autophagy / membrane raft / axon / negative regulation of gene expression / neuronal cell body / dendrite / DNA damage response / protein kinase binding / enzyme binding / mitochondrion / DNA binding / RNA binding / extracellular region / identical protein binding / nucleus / plasma membrane 類似検索 - 分子機能 | ||||||||||||
生物種 | ![]() | ||||||||||||
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: 3.88 Å | ||||||||||||
![]() | Li, L. / Nguyen, A.B. / Mullapudi, V. / Joachimiak, L. | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Disease-associated patterns of acetylation stabilize tau fibril formation. 著者: Li Li / Binh A Nguyen / Vishruth Mullapudi / Yang Li / Lorena Saelices / Lukasz A Joachimiak / ![]() 要旨: Assembly of tau into beta-sheet-rich amyloids dictates the pathology of a diversity of diseases. Lysine acetylation has been proposed to drive tau amyloid assembly, but no direct mechanism has ...Assembly of tau into beta-sheet-rich amyloids dictates the pathology of a diversity of diseases. Lysine acetylation has been proposed to drive tau amyloid assembly, but no direct mechanism has emerged. Using tau fragments, we identify patterns of acetylation that flank amyloidogenic motifs on the tau fragments that promote rapid fibril assembly. We determined a 3.9 Å cryo-EM amyloid fibril structure assembled from an acetylated tau fragment uncovering how lysine acetylation can mediate gain-of-function interactions. Comparison of the structure to an ex vivo tauopathy fibril reveals regions of structural similarity. Finally, we show that fibrils encoding disease-associated patterns of acetylation are active in cell-based tau aggregation assays. Our data uncover the dual role of lysine residues in limiting tau aggregation while their acetylation leads to stabilizing pro-aggregation interactions. Design of tau sequence with specific acetylation patterns may lead to controllable tau aggregation to direct folding of tau into distinct amyloid folds. | ||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 107.9 KB | 表示 | ![]() |
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PDB形式 | ![]() | 87.6 KB | 表示 | ![]() |
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その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.3 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 35 KB | 表示 | |
CIF形式データ | ![]() | 46.6 KB | 表示 | |
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-関連構造データ
関連構造データ | ![]() 28721MC 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 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質・ペプチド | 分子量: 2073.352 Da / 分子数: 48 / 断片: acetylated repeat 1 and 2 fragment (AcR1R2) / 由来タイプ: 合成 / 由来: (合成) ![]() 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: FILAMENT / 3次元再構成法: らせん対称体再構成法 |
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試料調製
構成要素 | 名称: Acetylated tau repeat 1 and 2 fragment (AcR1R2) / タイプ: COMPLEX / 詳細: Chemically synthesized / Entity ID: all / 由来: SYNTHETIC | |||||||||||||||||||||||||
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由来(天然) | 生物種: ![]() | |||||||||||||||||||||||||
緩衝液 | pH: 7.4 / 詳細: This is PBS (1x) | |||||||||||||||||||||||||
緩衝液成分 |
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試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: we used 0.5 mM of the peptide to make the fibril | |||||||||||||||||||||||||
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 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 295 K 詳細: We used blot-force of -5, and blot-time of 4 seconds. |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 105000 X / 最大 デフォーカス(公称値): 2400 nm / 最小 デフォーカス(公称値): 1200 nm / Cs: 2.7 mm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 平均露光時間: 4.5 sec. / 電子線照射量: 52 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 5901 |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / 分類: 精密化 | ||||||||||||||||||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||||||||||||||||||
らせん対称 | 回転角度/サブユニット: -1 ° / 軸方向距離/サブユニット: 4.75 Å / らせん対称軸の対称性: C1 | ||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.88 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 45674 / クラス平均像の数: 1 / 対称性のタイプ: HELICAL | ||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER / Target criteria: Cross-correlation coefficient | ||||||||||||||||||||||||||||||||||||||||
精密化 | 最高解像度: 3.88 Å |