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基本情報
登録情報 | データベース: EMDB / ID: EMD-30887 | |||||||||
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タイトル | Cryo-EM structure of amyloid fibril formed by familial prion disease-related mutation E196K | |||||||||
![]() | Masked density map | |||||||||
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![]() | Amyloid fibril / PROTEIN FIBRIL | |||||||||
機能・相同性 | ![]() negative regulation of amyloid precursor protein catabolic process / regulation of glutamate receptor signaling pathway / positive regulation of glutamate receptor signaling pathway / lamin binding / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / ATP-dependent protein binding / glycosaminoglycan binding / NCAM1 interactions / type 5 metabotropic glutamate receptor binding ...negative regulation of amyloid precursor protein catabolic process / regulation of glutamate receptor signaling pathway / positive regulation of glutamate receptor signaling pathway / lamin binding / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / ATP-dependent protein binding / glycosaminoglycan binding / NCAM1 interactions / type 5 metabotropic glutamate receptor binding / negative regulation of interleukin-17 production / regulation of potassium ion transmembrane transport / negative regulation of dendritic spine maintenance / cupric ion binding / negative regulation of protein processing / dendritic spine maintenance / negative regulation of calcineurin-NFAT signaling cascade / extrinsic component of membrane / negative regulation of interleukin-2 production / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / negative regulation of T cell receptor signaling pathway / negative regulation of activated T cell proliferation / negative regulation of amyloid-beta formation / cuprous ion binding / response to amyloid-beta / negative regulation of type II interferon production / negative regulation of long-term synaptic potentiation / positive regulation of protein targeting to membrane / intracellular copper ion homeostasis / long-term memory / regulation of peptidyl-tyrosine phosphorylation / negative regulation of protein phosphorylation / response to cadmium ion / inclusion body / cellular response to copper ion / neuron projection maintenance / tubulin binding / positive regulation of calcium-mediated signaling / molecular function activator activity / positive regulation of protein localization to plasma membrane / negative regulation of DNA-binding transcription factor activity / molecular condensate scaffold activity / protein destabilization / terminal bouton / protein homooligomerization / cellular response to amyloid-beta / positive regulation of peptidyl-tyrosine phosphorylation / positive regulation of neuron apoptotic process / cellular response to xenobiotic stimulus / signaling receptor activity / amyloid-beta binding / protein-folding chaperone binding / protease binding / microtubule binding / nuclear membrane / molecular adaptor activity / response to oxidative stress / transmembrane transporter binding / learning or memory / regulation of cell cycle / postsynapse / postsynaptic density / membrane raft / copper ion binding / external side of plasma membrane / intracellular membrane-bounded organelle / dendrite / protein-containing complex binding / negative regulation of apoptotic process / Golgi apparatus / cell surface / endoplasmic reticulum / extracellular exosome / identical protein binding / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
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: 3.07 Å | |||||||||
![]() | Wang LQ / Zhao K | |||||||||
![]() | ![]() タイトル: Genetic prion disease-related mutation E196K displays a novel amyloid fibril structure revealed by cryo-EM. 著者: Li-Qiang Wang / Kun Zhao / Han-Ye Yuan / Xiang-Ning Li / Hai-Bin Dang / Yeyang Ma / Qiang Wang / Chen Wang / Yunpeng Sun / Jie Chen / Dan Li / Delin Zhang / Ping Yin / Cong Liu / Yi Liang / ![]() 要旨: Prion diseases are caused by the conformational conversion of prion protein (PrP). Forty-two different mutations were identified in human PrP, leading to genetic prion diseases with distinct clinical ...Prion diseases are caused by the conformational conversion of prion protein (PrP). Forty-two different mutations were identified in human PrP, leading to genetic prion diseases with distinct clinical syndromes. Here, we report the cryo–electron microscopy structure of an amyloid fibril formed by full-length human PrP with E196K mutation, a genetic Creutzfeldt-Jakob disease–related mutation. This mutation disrupts key interactions in the wild-type PrP fibril, forming an amyloid fibril with a conformation distinct from the wild-type PrP fibril and hamster brain–derived prion fibril. The E196K fibril consists of two protofibrils. Each subunit forms five β strands stabilized by a disulfide bond and an unusual hydrophilic cavity stabilized by a salt bridge. Four pairs of amino acids from opposing subunits form four salt bridges to stabilize the zigzag interface of the two protofibrils. Our results provide structural evidences of the diverse prion strains and highlight the importance of familial mutations in inducing different strains. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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ダウンロードとリンク
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マップデータ | ![]() | 15.2 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 11.9 KB 11.9 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 14.2 KB | 表示 | ![]() |
画像 | ![]() | 28.1 KB | ||
マスクデータ | ![]() | 244.1 MB | ![]() | |
Filedesc metadata | ![]() | 5 KB | ||
その他 | ![]() | 228.7 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 410.2 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 409.7 KB | 表示 | |
XML形式データ | ![]() | 14.1 KB | 表示 | |
CIF形式データ | ![]() | 19.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Masked density map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 1.014 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-マスク #1
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投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Unmasked density map
ファイル | emd_30887_additional_1.map | ||||||||||||
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注釈 | Unmasked density map | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Human prion E196K mutation amyloid fibril
全体 | 名称: Human prion E196K mutation amyloid fibril |
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要素 |
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-超分子 #1: Human prion E196K mutation amyloid fibril
超分子 | 名称: Human prion E196K mutation amyloid fibril / タイプ: organelle_or_cellular_component / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-分子 #1: Major prion protein
分子 | 名称: Major prion protein / タイプ: protein_or_peptide / ID: 1 / コピー数: 6 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 22.996422 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MKKRPKPGGW NTGGSRYPGQ GSPGGNRYPP QGGGGWGQPH GGGWGQPHGG GWGQPHGGGW GQPHGGGWGQ GGGTHSQWNK PSKPKTNMK HMAGAAAAGA VVGGLGGYML GSAMSRPIIH FGSDYEDRYY RENMHRYPNQ VYYRPMDEYS NQNNFVHDCV N ITIKQHTV ...文字列: MKKRPKPGGW NTGGSRYPGQ GSPGGNRYPP QGGGGWGQPH GGGWGQPHGG GWGQPHGGGW GQPHGGGWGQ GGGTHSQWNK PSKPKTNMK HMAGAAAAGA VVGGLGGYML GSAMSRPIIH FGSDYEDRYY RENMHRYPNQ VYYRPMDEYS NQNNFVHDCV N ITIKQHTV TTTTKGKNFT ETDVKMMERV VEQMCITQYE RESQAYYQRG SS UniProtKB: Major prion protein |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | らせん対称体再構成法 |
試料の集合状態 | helical array |
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試料調製
緩衝液 | pH: 5 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 64.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |