+
データを開く
-
基本情報
| 登録情報 | データベース: PDB / ID: 9hbb | ||||||
|---|---|---|---|---|---|---|---|
| タイトル | Recombinant tau PHF filaments (peptide synthesis 291-391) | ||||||
要素 | Isoform Tau-F of Microtubule-associated protein tau | ||||||
キーワード | PROTEIN FIBRIL / Amyloid / neurodegeneration / PHF / tau | ||||||
| 機能・相同性 | 機能・相同性情報plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / tubulin complex / positive regulation of protein localization to synapse / phosphatidylinositol bisphosphate binding / generation of neurons ...plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / tubulin complex / positive regulation of protein localization to synapse / phosphatidylinositol bisphosphate binding / generation of neurons / rRNA metabolic process / axonal transport of mitochondrion / regulation of mitochondrial fission / axon development / regulation of microtubule-based movement / regulation of chromosome organization / central nervous system neuron development / intracellular distribution of mitochondria / minor groove of adenine-thymine-rich DNA binding / lipoprotein particle binding / microtubule polymerization / negative regulation of mitochondrial membrane potential / regulation of microtubule polymerization / dynactin binding / apolipoprotein binding / main axon / protein polymerization / axolemma / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / negative regulation of mitochondrial fission / glial cell projection / neurofibrillary tangle assembly / positive regulation of axon extension / regulation of cellular response to heat / Activation of AMPK downstream of NMDARs / positive regulation of superoxide anion generation / positive regulation of protein localization / cellular response to brain-derived neurotrophic factor stimulus / supramolecular fiber organization / regulation of long-term synaptic depression / positive regulation of microtubule polymerization / cytoplasmic microtubule organization / synapse assembly / regulation of calcium-mediated signaling / somatodendritic compartment / axon cytoplasm / astrocyte activation / phosphatidylinositol binding / nuclear periphery / enzyme inhibitor activity / stress granule assembly / protein phosphatase 2A binding / regulation of microtubule cytoskeleton organization / cellular response to reactive oxygen species / microglial cell activation / Hsp90 protein binding / cellular response to nerve growth factor stimulus / protein homooligomerization / synapse organization / PKR-mediated signaling / regulation of synaptic plasticity / regulation of autophagy / SH3 domain binding / response to lead ion / microtubule cytoskeleton organization / memory / neuron projection development / cytoplasmic ribonucleoprotein granule / cell-cell signaling / single-stranded DNA binding / protein-folding chaperone binding / cellular response to heat / microtubule cytoskeleton / actin binding / growth cone / cell body / double-stranded DNA binding / microtubule binding / protein-macromolecule adaptor activity / sequence-specific DNA binding / amyloid fibril formation / dendritic spine / microtubule / learning or memory / neuron projection / membrane raft / negative regulation of gene expression / axon / neuronal cell body / DNA damage response / dendrite / protein kinase binding / enzyme binding / mitochondrion / DNA binding / RNA binding / extracellular region / identical protein binding / nucleus 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: 3 Å | ||||||
データ登録者 | Lovestam, S. | ||||||
| 資金援助 | 米国, 1件
| ||||||
引用 | ジャーナル: bioRxiv / 年: 2024タイトル: Post-Translational Modifications Control Phase Transitions of Tau. 著者: Wyatt C Powell / McKinley Nahum / Karl Pankratz / Morgane Herlory / James Greenwood / Darya Poliyenko / Patrick Holland / Ruiheng Jing / Luke Biggerstaff / Michael H B Stowell / Maciej A Walczak / ![]() 要旨: The self-assembly of Tau(297-391) into filaments, which mirror the structures observed in Alzheimer's disease (AD) brains, raises questions about the role of AD-specific post-translational ...The self-assembly of Tau(297-391) into filaments, which mirror the structures observed in Alzheimer's disease (AD) brains, raises questions about the role of AD-specific post-translational modifications (PTMs) in the formation of paired helical filaments (PHFs). To investigate this, we developed a synthetic approach to produce Tau(291-391) featuring N-acetyllysine, phosphoserine, phosphotyrosine, and N-glycosylation at positions commonly modified in post-mortem AD brains, thus facilitating the study of their roles in Tau pathology. Using transmission electron microscopy (TEM), cryo-electron microscopy (cryo-EM), and a range of optical microscopy techniques, we discovered that these modifications generally hinder the assembly of Tau into PHFs. Interestingly, while acetylation's effect on Tau assembly displayed variability, either promoting or inhibiting phase transitions in the context of cofactor free aggregation, heparin-induced aggregation, and RNA-mediated liquid-liquid phase separation (LLPS), phosphorylation uniformly mitigated these processes. Our observations suggest that PTMs, particularly those situated outside the fibril's rigid core are pivotal in the nucleation of PHFs. Moreover, in scenarios involving heparin-induced aggregation leading to the formation of heterogeneous aggregates, most AD-specific PTMs, except for K311, appeared to decelerate the aggregation process. The impact of acetylation on RNA-induced LLPS was notably site-dependent, exhibiting both facilitative and inhibitory effects, whereas phosphorylation consistently reduced LLPS across all proteoforms examined. These insights underscore the complex interplay between site-specific PTMs and environmental factors in modulating Tau aggregation kinetics, enhancing our understanding of the molecular underpinnings of Tau pathology in AD and highlighting the critical role of PTMs located outside the ordered filament core in driving the self-assembly of Tau into PHF structures. #1: ジャーナル: Acs Cent.Sci. / 年: 2024タイトル: Post-Translational Modifications Control Phase Transitions of Tau 著者: Powell, W. / Nahum, M. / Pankratz, K. / Herlory, M. / Greenwood, J. / Holland, P. / Jing, R. / Biggerstaff, L. / Walczak, M. / Stowell, M. / Poliyenko, D. | ||||||
| 履歴 |
|
-
構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
|---|
-
ダウンロードとリンク
-
ダウンロード
| PDBx/mmCIF形式 | 9hbb.cif.gz | 152.8 KB | 表示 | PDBx/mmCIF形式 |
|---|---|---|---|---|
| PDB形式 | pdb9hbb.ent.gz | 124.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9hbb.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/hb/9hbb ftp://data.pdbj.org/pub/pdb/validation_reports/hb/9hbb | HTTPS FTP |
|---|
-関連構造データ
| 関連構造データ | ![]() 52014MC 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 ( |
|---|---|
| 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 | ![]()
|
|---|---|
| 1 |
|
-
要素
| #1: タンパク質 | 分子量: 10793.257 Da / 分子数: 6 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) / 参照: UniProt: P10636Has protein modification | N | |
|---|
-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
|---|---|
| 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: Tau protein filament using synthesised 291-391 / タイプ: COMPLEX / Entity ID: all / 由来: NATURAL |
|---|---|
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.2 |
| 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 |
|---|---|
| 顕微鏡 | モデル: TFS 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 FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 1500 nm |
| 撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
-
解析
| EMソフトウェア | 名称: RELION / カテゴリ: 画像取得 |
|---|---|
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| らせん対称 | 回転角度/サブユニット: 179.5 ° / 軸方向距離/サブユニット: 2.38 Å / らせん対称軸の対称性: C1 |
| 3次元再構成 | 解像度: 3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 12888 / 対称性のタイプ: HELICAL |
ムービー
コントローラー
万見について




Homo sapiens (ヒト)
米国, 1件
引用
PDBj







FIELD EMISSION GUN