- EMDB-33719: CryoEM tetra protofilament structure of the hamster prion 108-144... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-33719
タイトル
CryoEM tetra protofilament structure of the hamster prion 108-144 fibril
マップデータ
Cryo-EM map of hamster prion 108-144 fibril, sharpened map.
試料
組織: 2.2 Angstrom cryo-EM tetra-protofilament structure of the hamster prion 108-144 fibril reveals an ordered water channel in the center
タンパク質・ペプチド: Major prion protein
リガンド: water
キーワード
Prion / fibril / hamster / PROTEIN FIBRIL
機能・相同性
機能・相同性情報
positive regulation of glutamate receptor signaling pathway / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / glycosaminoglycan binding / type 5 metabotropic glutamate receptor binding / negative regulation of interleukin-17 production / negative regulation of dendritic spine maintenance / cupric ion binding / regulation of potassium ion transmembrane transport / negative regulation of calcineurin-NFAT signaling cascade ...positive regulation of glutamate receptor signaling pathway / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / glycosaminoglycan binding / type 5 metabotropic glutamate receptor binding / negative regulation of interleukin-17 production / negative regulation of dendritic spine maintenance / cupric ion binding / regulation of potassium ion transmembrane transport / 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 / negative regulation of type II interferon production / positive regulation of protein targeting to membrane / side of membrane / inclusion body / cellular response to copper ion / neuron projection maintenance / positive regulation of calcium-mediated signaling / molecular function activator activity / positive regulation of protein localization to plasma membrane / molecular condensate scaffold activity / terminal bouton / protein destabilization / protein homooligomerization / cellular response to amyloid-beta / positive regulation of neuron apoptotic process / cellular response to xenobiotic stimulus / presynapse / signaling receptor activity / amyloid-beta binding / protease binding / microtubule binding / nuclear membrane / response to oxidative stress / amyloid fibril formation / learning or memory / regulation of cell cycle / membrane raft / copper ion binding / dendrite / protein-containing complex binding / negative regulation of apoptotic process / cell surface / endoplasmic reticulum / Golgi apparatus / identical protein binding / plasma membrane / cytosol 類似検索 - 分子機能
Prion, copper binding octapeptide repeat / Copper binding octapeptide repeat region / Major prion protein N-terminal domain / Major prion protein bPrPp - N terminal / Prion protein signature 1. / Prion protein signature 2. / Prion protein / Major prion protein / Prion/Doppel protein, beta-ribbon domain / Prion/Doppel beta-ribbon domain superfamily / Prion/Doppel alpha-helical domain 類似検索 - ドメイン・相同性
ジャーナル: J Am Chem Soc / 年: 2022 タイトル: 2.2 Å Cryo-EM Tetra-Protofilament Structure of the Hamster Prion 108-144 Fibril Reveals an Ordered Water Channel in the Center. 著者: Eric H-L Chen / Hsi-Wen Kao / Chih-Hsuan Lee / Jessica Y C Huang / Kuen-Phon Wu / Rita P-Y Chen / 要旨: Fibrils of the hamster prion peptide (sHaPrP, sequence 108-144) were prepared in an acidic solution, and their structure was solved by cryogenic electron microscopy with a resolution of 2.23 Å based ...Fibrils of the hamster prion peptide (sHaPrP, sequence 108-144) were prepared in an acidic solution, and their structure was solved by cryogenic electron microscopy with a resolution of 2.23 Å based on the gold-standard Fourier shell correlation (FSC) curve. The fibril has a novel architecture that has never been found in other amyloid fibrils. Each fibril is assembled by four protofilaments (PFs) and has an ordered water channel in the center. Each protofilament contains three β-strands (125-130, 133-135, and 138-141) arranged in an "R"-shaped construct. The structural data indicate that these three β-strand segments are the most amyloidogenic region of the prion peptide/protein and might be the site of nucleation during fibrillization under conditions without denaturants.
全体 : 2.2 Angstrom cryo-EM tetra-protofilament structure of the hamster...
全体
名称: 2.2 Angstrom cryo-EM tetra-protofilament structure of the hamster prion 108-144 fibril reveals an ordered water channel in the center
要素
組織: 2.2 Angstrom cryo-EM tetra-protofilament structure of the hamster prion 108-144 fibril reveals an ordered water channel in the center
タンパク質・ペプチド: Major prion protein
リガンド: water
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超分子 #1: 2.2 Angstrom cryo-EM tetra-protofilament structure of the hamster...
超分子
名称: 2.2 Angstrom cryo-EM tetra-protofilament structure of the hamster prion 108-144 fibril reveals an ordered water channel in the center タイプ: tissue / ID: 1 / 親要素: 0 / 含まれる分子: #1