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
ジャーナル: Nat Chem Biol / 年: 2023 タイトル: A structural basis for prion strain diversity. 著者: Szymon W Manka / Adam Wenborn / Jemma Betts / Susan Joiner / Helen R Saibil / John Collinge / Jonathan D F Wadsworth / 要旨: Recent cryogenic electron microscopy (cryo-EM) studies of infectious, ex vivo, prion fibrils from hamster 263K and mouse RML prion strains revealed a similar, parallel in-register intermolecular β- ...Recent cryogenic electron microscopy (cryo-EM) studies of infectious, ex vivo, prion fibrils from hamster 263K and mouse RML prion strains revealed a similar, parallel in-register intermolecular β-sheet (PIRIBS) amyloid architecture. Rungs of the fibrils are composed of individual prion protein (PrP) monomers that fold to create distinct N-terminal and C-terminal lobes. However, disparity in the hamster/mouse PrP sequence precludes understanding of how divergent prion strains emerge from an identical PrP substrate. In this study, we determined the near-atomic resolution cryo-EM structure of infectious, ex vivo mouse prion fibrils from the ME7 prion strain and compared this with the RML fibril structure. This structural comparison of two biologically distinct mouse-adapted prion strains suggests defined folding subdomains of PrP rungs and the way in which they are interrelated, providing a structural definition of intra-species prion strain-specific conformations.