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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: 7qig | |||||||||||||||||||||||||||
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タイトル | Infectious mouse-adapted RML scrapie prion fibril purified from terminally-infected mouse brains | |||||||||||||||||||||||||||
![]() | Major prion protein | |||||||||||||||||||||||||||
![]() | PROTEIN FIBRIL / Prion / Amyloid / PrP / Prion protein / mouse RML scrapie strain / ex vivo prion | |||||||||||||||||||||||||||
機能・相同性 | ![]() Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / negative regulation of amyloid precursor protein catabolic process / regulation of glutamate receptor signaling pathway / lamin binding / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / positive regulation of glutamate receptor signaling pathway / glycosaminoglycan binding / ATP-dependent protein binding / type 5 metabotropic glutamate receptor binding ...Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / negative regulation of amyloid precursor protein catabolic process / regulation of glutamate receptor signaling pathway / lamin binding / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / positive regulation of glutamate receptor signaling pathway / glycosaminoglycan binding / ATP-dependent protein binding / type 5 metabotropic glutamate receptor binding / negative regulation of interleukin-17 production / cupric ion binding / negative regulation of dendritic spine maintenance / regulation of potassium ion transmembrane transport / nucleobase-containing compound metabolic process / negative regulation of calcineurin-NFAT signaling cascade / negative regulation of interleukin-2 production / 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 / intracellular copper ion homeostasis / positive regulation of protein targeting to membrane / response to cadmium ion / side of membrane / inclusion body / neuron projection maintenance / positive regulation of calcium-mediated signaling / cellular response to copper ion / molecular function activator activity / positive regulation of protein localization to plasma membrane / molecular condensate scaffold activity / protein destabilization / protein homooligomerization / cellular response to xenobiotic stimulus / terminal bouton / cellular response to amyloid-beta / positive regulation of neuron apoptotic process / signaling receptor activity / regulation of protein localization / protein-folding chaperone binding / amyloid-beta binding / response to oxidative stress / protease binding / nuclear membrane / microtubule binding / molecular adaptor activity / transmembrane transporter binding / learning or memory / postsynaptic density / intracellular signal transduction / membrane raft / copper ion binding / dendrite / negative regulation of apoptotic process / protein-containing complex binding / cell surface / endoplasmic reticulum / negative regulation of transcription by RNA polymerase II / Golgi apparatus / metal ion binding / identical protein binding / membrane / plasma membrane / cytosol 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: 2.7 Å | |||||||||||||||||||||||||||
![]() | Manka, S.W. / Zhang, W. / Wenborn, A. / Betts, J. / Joiner, S. / Saibil, H.R. / Collinge, J. / Wadsworth, J.D.F. | |||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: 2.7 Å cryo-EM structure of ex vivo RML prion fibrils. 著者: Szymon W Manka / Wenjuan Zhang / Adam Wenborn / Jemma Betts / Susan Joiner / Helen R Saibil / John Collinge / Jonathan D F Wadsworth / ![]() 要旨: Mammalian prions propagate as distinct strains and are composed of multichain assemblies of misfolded host-encoded prion protein (PrP). Here, we present a near-atomic resolution cryo-EM structure of ...Mammalian prions propagate as distinct strains and are composed of multichain assemblies of misfolded host-encoded prion protein (PrP). Here, we present a near-atomic resolution cryo-EM structure of PrP fibrils present in highly infectious prion rod preparations isolated from the brains of RML prion-infected mice. We found that prion rods comprise single-protofilament helical amyloid fibrils that coexist with twisted pairs of the same protofilaments. Each rung of the protofilament is formed by a single PrP monomer with the ordered core comprising PrP residues 94-225, which folds to create two asymmetric lobes with the N-linked glycans and the glycosylphosphatidylinositol anchor projecting from the C-terminal lobe. The overall architecture is comparable to that of recently reported PrP fibrils isolated from the brain of hamsters infected with the 263K prion strain. However, there are marked conformational variations that could result from differences in PrP sequence and/or represent distinguishing features of the distinct prion strains. | |||||||||||||||||||||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 80.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 60.2 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 624.2 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 625.3 KB | 表示 | |
XML形式データ | ![]() | 24.5 KB | 表示 | |
CIF形式データ | ![]() | 35.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 13989MC 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 ![]() |
電子顕微鏡画像生データ | ![]() Data size: 1.0 TB Data #1: Aligned multi-frame micrographs of RML prion fibrils [micrographs - single frame]) |
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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: 15290.103 Da / 分子数: 3 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() 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: Amyloid fibril of mouse PrP from RML--infected mouse brain タイプ: COMPLEX / Entity ID: all / 由来: NATURAL |
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分子量 | 実験値: NO |
由来(天然) | 生物種: ![]() ![]() |
緩衝液 | pH: 6.8 |
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: C-flat-2/2 |
急速凍結 | 凍結剤: ETHANE |
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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 / 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: 49 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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: -0.64 ° / 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: 2.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 119390 / 対称性のタイプ: HELICAL | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: AB INITIO MODEL / 空間: REAL | ||||||||||||||||||||||||
拘束条件 |
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