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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 9d5c | ||||||||||||||||||||||||
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| タイトル | Cryo-EM structure of serine 87 O-GlcNAc-modified alpha-synuclein fibrils | ||||||||||||||||||||||||
要素 | Alpha-synuclein | ||||||||||||||||||||||||
キーワード | PROTEIN FIBRIL / alpha-synuclein / O-GlcNAc / amyloid / fibril / posttranslational modification | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報negative regulation of mitochondrial electron transport, NADH to ubiquinone / : / neutral lipid metabolic process / regulation of acyl-CoA biosynthetic process / negative regulation of dopamine uptake involved in synaptic transmission / negative regulation of norepinephrine uptake / response to desipramine / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber ...negative regulation of mitochondrial electron transport, NADH to ubiquinone / : / neutral lipid metabolic process / regulation of acyl-CoA biosynthetic process / negative regulation of dopamine uptake involved in synaptic transmission / negative regulation of norepinephrine uptake / response to desipramine / positive regulation of SNARE complex assembly / positive regulation of hydrogen peroxide catabolic process / supramolecular fiber / regulation of synaptic vesicle recycling / negative regulation of chaperone-mediated autophagy / mitochondrial membrane organization / regulation of reactive oxygen species biosynthetic process / negative regulation of platelet-derived growth factor receptor signaling pathway / positive regulation of protein localization to cell periphery / negative regulation of exocytosis / regulation of glutamate secretion / dopamine biosynthetic process / response to iron(II) ion / SNARE complex assembly / positive regulation of neurotransmitter secretion / negative regulation of dopamine metabolic process / regulation of macrophage activation / positive regulation of inositol phosphate biosynthetic process / regulation of norepinephrine uptake / negative regulation of microtubule polymerization / regulation of locomotion / synaptic vesicle transport / transporter regulator activity / synaptic vesicle priming / dopamine uptake involved in synaptic transmission / protein kinase inhibitor activity / regulation of dopamine secretion / mitochondrial ATP synthesis coupled electron transport / dynein complex binding / negative regulation of thrombin-activated receptor signaling pathway / positive regulation of receptor recycling / cuprous ion binding / nuclear outer membrane / response to magnesium ion / positive regulation of exocytosis / synaptic vesicle exocytosis / positive regulation of endocytosis / kinesin binding / synaptic vesicle endocytosis / enzyme inhibitor activity / cysteine-type endopeptidase inhibitor activity / regulation of presynapse assembly / response to type II interferon / negative regulation of serotonin uptake / alpha-tubulin binding / beta-tubulin binding / phospholipase binding / behavioral response to cocaine / supramolecular fiber organization / phospholipid metabolic process / cellular response to fibroblast growth factor stimulus / inclusion body / axon terminus / Hsp70 protein binding / cellular response to epinephrine stimulus / response to interleukin-1 / regulation of microtubule cytoskeleton organization / cellular response to copper ion / positive regulation of release of sequestered calcium ion into cytosol / adult locomotory behavior / SNARE binding / excitatory postsynaptic potential / protein tetramerization / phosphoprotein binding / microglial cell activation / ferrous iron binding / fatty acid metabolic process / regulation of long-term neuronal synaptic plasticity / synapse organization / protein destabilization / PKR-mediated signaling / phospholipid binding / receptor internalization / tau protein binding / long-term synaptic potentiation / terminal bouton / positive regulation of inflammatory response / synaptic vesicle membrane / actin cytoskeleton / growth cone / actin binding / cellular response to oxidative stress / neuron apoptotic process / cell cortex / histone binding / response to lipopolysaccharide / microtubule binding / chemical synaptic transmission / amyloid fibril formation / molecular adaptor activity / negative regulation of neuron apoptotic process / mitochondrial outer membrane / oxidoreductase activity 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: 4.8 Å | ||||||||||||||||||||||||
データ登録者 | Balana, J.A. / Nguyen, A.B. / Sawaya, M. / Murzin, A.G. / Saelices, L. / Pratt, R.M. | ||||||||||||||||||||||||
| 資金援助 | 米国, 7件
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引用 | ジャーナル: Nat Chem Biol / 年: 2024タイトル: O-GlcNAc forces an α-synuclein amyloid strain with notably diminished seeding and pathology. 著者: Aaron T Balana / Anne-Laure Mahul-Mellier / Binh A Nguyen / Mian Horvath / Afraah Javed / Eldon R Hard / Yllza Jasiqi / Preeti Singh / Shumaila Afrin / Rose Pedretti / Virender Singh / ...著者: Aaron T Balana / Anne-Laure Mahul-Mellier / Binh A Nguyen / Mian Horvath / Afraah Javed / Eldon R Hard / Yllza Jasiqi / Preeti Singh / Shumaila Afrin / Rose Pedretti / Virender Singh / Virginia M-Y Lee / Kelvin C Luk / Lorena Saelices / Hilal A Lashuel / Matthew R Pratt / ![]() 要旨: Amyloid-forming proteins such α-synuclein and tau, which are implicated in Alzheimer's and Parkinson's disease, can form different fibril structures or strains with distinct toxic properties, ...Amyloid-forming proteins such α-synuclein and tau, which are implicated in Alzheimer's and Parkinson's disease, can form different fibril structures or strains with distinct toxic properties, seeding activities and pathology. Understanding the determinants contributing to the formation of different amyloid features could open new avenues for developing disease-specific diagnostics and therapies. Here we report that O-GlcNAc modification of α-synuclein monomers results in the formation of amyloid fibril with distinct core structure, as revealed by cryogenic electron microscopy, and diminished seeding activity in seeding-based neuronal and rodent models of Parkinson's disease. Although the mechanisms underpinning the seeding neutralization activity of the O-GlcNAc-modified fibrils remain unclear, our in vitro mechanistic studies indicate that heat shock proteins interactions with O-GlcNAc fibril inhibit their seeding activity, suggesting that the O-GlcNAc modification may alter the interactome of the α-synuclein fibrils in ways that lead to reduce seeding activity in vivo. Our results show that posttranslational modifications, such as O-GlcNAc modification, of α-synuclein are key determinants of α-synuclein amyloid strains and pathogenicity. | ||||||||||||||||||||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 9d5c.cif.gz | 97.3 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9d5c.ent.gz | 76.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9d5c.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
| 文書・要旨 | 9d5c_validation.pdf.gz | 1.6 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 9d5c_full_validation.pdf.gz | 1.6 MB | 表示 | |
| XML形式データ | 9d5c_validation.xml.gz | 32.7 KB | 表示 | |
| CIF形式データ | 9d5c_validation.cif.gz | 47.2 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/d5/9d5c ftp://data.pdbj.org/pub/pdb/validation_reports/d5/9d5c | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 29980MC ![]() 8gf7C 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 F&H 検索 |
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リンク
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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 | 分子量: 9533.971 Da / 分子数: 6 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) / 参照: UniProt: P37840#2: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | Y | 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: serine 87 O-GlcNAc-modified alpha-synuclein / タイプ: COMPLEX / 詳細: This protein is chemically synthesized / Entity ID: #1 / 由来: NATURAL |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.4 / 詳細: normal PBS |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 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 | 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 298 K |
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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: 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): 2200 nm / 最小 デフォーカス(公称値): 800 nm |
| 撮影 | 平均露光時間: 3.6 sec. / 電子線照射量: 40 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: 2 / 実像数: 7270 / 詳細: 3 shots per hole |
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解析
| 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: -0.7 ° / 軸方向距離/サブユニット: 4.926 Å / らせん対称軸の対称性: C1 | ||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 4.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 22042 / クラス平均像の数: 1 / 対称性のタイプ: HELICAL | ||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | PDB-ID: 6A6B Accession code: 6A6B / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)
米国, 7件
引用


PDBj



FIELD EMISSION GUN
