infectious prion / PROTEIN FIBRIL / amyloid / parallel in-register
機能・相同性
機能・相同性情報
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 / aspartic-type endopeptidase inhibitor activity / regulation of calcium ion import across plasma membrane / glycosaminoglycan binding / type 5 metabotropic glutamate receptor binding / positive regulation of glutamate receptor signaling pathway / negative regulation of interleukin-17 production ...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 / aspartic-type endopeptidase inhibitor activity / regulation of calcium ion import across plasma membrane / glycosaminoglycan binding / type 5 metabotropic glutamate receptor binding / positive regulation of glutamate receptor signaling pathway / negative regulation of interleukin-17 production / cupric ion binding / ATP-dependent protein binding / regulation of potassium ion transmembrane transport / negative regulation of dendritic spine maintenance / nucleobase-containing compound metabolic process / negative regulation of calcineurin-NFAT signaling cascade / negative regulation of interleukin-2 production / response to copper ion / negative regulation of activated T cell proliferation / negative regulation of amyloid-beta formation / response to amyloid-beta / negative regulation of type II interferon production / cuprous ion binding / negative regulation of long-term synaptic potentiation / intracellular copper ion homeostasis / negative regulation of T cell receptor signaling pathway / positive regulation of protein targeting to membrane / response to cadmium ion / side of membrane / neuron projection maintenance / inclusion body / positive regulation of calcium-mediated signaling / molecular function activator activity / cellular response to copper ion / positive regulation of protein localization to plasma membrane / molecular condensate scaffold activity / tubulin binding / protein homooligomerization / protein destabilization / cellular response to xenobiotic stimulus / cellular response to amyloid-beta / terminal bouton / positive regulation of neuron apoptotic process / regulation of protein localization / amyloid-beta binding / protein-folding chaperone binding / signaling receptor activity / protease binding / response to oxidative stress / nuclear membrane / microtubule binding / molecular adaptor activity / transmembrane transporter binding / learning or memory / mitochondrial outer membrane / postsynaptic density / intracellular signal transduction / membrane raft / copper ion binding / dendrite / negative regulation of apoptotic process / protein-containing complex binding / cell surface / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / Golgi apparatus / membrane / metal ion binding / 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
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
A1000580
Other private
引用
ジャーナル: Mol Cell / 年: 2021 タイトル: High-resolution structure and strain comparison of infectious mammalian prions. 著者: Allison Kraus / Forrest Hoyt / Cindi L Schwartz / Bryan Hansen / Efrosini Artikis / Andrew G Hughson / Gregory J Raymond / Brent Race / Gerald S Baron / Byron Caughey / 要旨: Within the extensive range of self-propagating pathologic protein aggregates of mammals, prions are the most clearly infectious (e.g., ∼10 lethal doses per milligram). The structures of such lethal ...Within the extensive range of self-propagating pathologic protein aggregates of mammals, prions are the most clearly infectious (e.g., ∼10 lethal doses per milligram). The structures of such lethal assemblies of PrP molecules have been poorly understood. Here we report a near-atomic core structure of a brain-derived, fully infectious prion (263K strain). Cryo-electron microscopy showed amyloid fibrils assembled with parallel in-register intermolecular β sheets. Each monomer provides one rung of the ordered fibril core, with N-linked glycans and glycolipid anchors projecting outward. Thus, single monomers form the templating surface for incoming monomers at fibril ends, where prion growth occurs. Comparison to another prion strain (aRML) revealed major differences in fibril morphology but, like 263K, an asymmetric fibril cross-section without paired protofilaments. These findings provide structural insights into prion propagation, strains, species barriers, and membrane pathogenesis. This structure also helps frame considerations of factors influencing the relative transmissibility of other pathologic amyloids.