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- EMDB-20900: human prion protein fibril, M129 variant -

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Basic information

Entry
Database: EMDB / ID: EMD-20900
Titlehuman prion protein fibril, M129 variant
Map dataHuman prion protein fibril, M129 variant
Sample
  • Complex: Fiber of human prion protein
    • Protein or peptide: Major prion protein
Keywordsamyloid / fibril / prion / filament / protein fibril / fiber / PrP
Function / homology
Function and homology information


positive regulation of glutamate receptor signaling pathway / negative regulation of amyloid precursor protein catabolic process / lamin binding / regulation of glutamate receptor signaling pathway / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / glycosaminoglycan binding / ATP-dependent protein binding / regulation of potassium ion transmembrane transport / negative regulation of interleukin-17 production ...positive regulation of glutamate receptor signaling pathway / negative regulation of amyloid precursor protein catabolic process / lamin binding / regulation of glutamate receptor signaling pathway / regulation of calcium ion import across plasma membrane / aspartic-type endopeptidase inhibitor activity / glycosaminoglycan binding / ATP-dependent protein binding / regulation of potassium ion transmembrane transport / negative regulation of interleukin-17 production / NCAM1 interactions / negative regulation of dendritic spine maintenance / type 5 metabotropic glutamate receptor binding / cupric ion binding / negative regulation of protein processing / negative regulation of calcineurin-NFAT signaling cascade / dendritic spine maintenance / negative regulation of interleukin-2 production / negative regulation of T cell receptor signaling pathway / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / extrinsic component of membrane / cuprous ion binding / negative regulation of amyloid-beta formation / negative regulation of activated T cell proliferation / 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 / long-term memory / response to cadmium ion / regulation of peptidyl-tyrosine phosphorylation / inclusion body / cellular response to copper ion / neuron projection maintenance / tubulin binding / negative regulation of protein phosphorylation / molecular condensate scaffold activity / molecular function activator activity / positive regulation of protein localization to plasma membrane / protein destabilization / protein homooligomerization / negative regulation of DNA-binding transcription factor activity / terminal bouton / 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 / postsynapse / microtubule binding / nuclear membrane / protease binding / response to oxidative stress / transmembrane transporter binding / molecular adaptor activity / postsynaptic density / learning or memory / regulation of cell cycle / membrane raft / cell cycle / 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 / cytoplasm / cytosol
Similarity search - Function
Prion protein signature 1. / Prion protein signature 2. / Major prion protein N-terminal domain / Major prion protein bPrPp - N terminal / Prion protein / Major prion protein / Prion/Doppel protein, beta-ribbon domain / Prion/Doppel beta-ribbon domain superfamily / Prion/Doppel alpha-helical domain
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
Methodhelical reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsGlynn C / Sawaya MR
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID) United States
CitationJournal: Nat Struct Mol Biol / Year: 2020
Title: Cryo-EM structure of a human prion fibril with a hydrophobic, protease-resistant core.
Authors: Calina Glynn / Michael R Sawaya / Peng Ge / Marcus Gallagher-Jones / Connor W Short / Ronquiajah Bowman / Marcin Apostol / Z Hong Zhou / David S Eisenberg / Jose A Rodriguez /
Abstract: Self-templating assemblies of the human prion protein are clinically associated with transmissible spongiform encephalopathies. Here we present the cryo-EM structure of a denaturant- and protease- ...Self-templating assemblies of the human prion protein are clinically associated with transmissible spongiform encephalopathies. Here we present the cryo-EM structure of a denaturant- and protease-resistant fibril formed in vitro spontaneously by a 9.7-kDa unglycosylated fragment of the human prion protein. This human prion fibril contains two protofilaments intertwined with screw symmetry and linked by a tightly packed hydrophobic interface. Each protofilament consists of an extended beta arch formed by residues 106 to 145 of the prion protein, a hydrophobic and highly fibrillogenic disease-associated segment. Such structures of prion polymorphs serve as blueprints on which to evaluate the potential impact of sequence variants on prion disease.
History
DepositionOct 31, 2019-
Header (metadata) releaseNov 27, 2019-
Map releaseApr 15, 2020-
UpdateMar 6, 2024-
Current statusMar 6, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 8
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 8
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6uur
  • Surface level: 8
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-6uur
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_20900.png

Downloads & links

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Map

FileDownload / File: emd_20900.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationHuman prion protein fibril, M129 variant
Voxel sizeX=Y=Z: 1.07 Å
Density
Contour LevelBy AUTHOR: 8.0 / Movie #1: 8
Minimum - Maximum-22.286657000000002 - 39.393219999999999
Average (Standard dev.)-0.000000000006449 (±1.0)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderZYX
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 428.00003 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.071.071.07
M x/y/z400400400
origin x/y/z0.0000.0000.000
length x/y/z428.000428.000428.000
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ400400400
MAP C/R/S321
start NC/NR/NS000
NC/NR/NS400400400
D min/max/mean-22.28739.393-0.000

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Supplemental data

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Sample components

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Entire : Fiber of human prion protein

EntireName: Fiber of human prion protein
Components
  • Complex: Fiber of human prion protein
    • Protein or peptide: Major prion protein

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Supramolecule #1: Fiber of human prion protein

SupramoleculeName: Fiber of human prion protein / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Major prion protein

MacromoleculeName: Major prion protein / type: protein_or_peptide / ID: 1 / Number of copies: 10 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 9.685771 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
GTHSQWNKPS KPKTNMKHMA GAAAAGAVVG GLGGYMLGSA MSRPIIHFGS DYEDRYYREN MHRYPNQVYY RPMDEYSNQN NFVHD

UniProtKB: Major prion protein

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Experimental details

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Structure determination

Methodcryo EM
Processinghelical reconstruction
Aggregation statefilament

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Sample preparation

BufferpH: 4
GridDetails: unspecified
VitrificationCryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 1.2 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Helical parameters - Δz: 2.4 Å
Applied symmetry - Helical parameters - Δ&Phi: 179.3 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 3.5 Å / Resolution method: FSC 0.5 CUT-OFF / Software - Name: RELION / Number images used: 76246
Startup modelType of model: NONE / Details: Gaussian cylinder
Final angle assignmentType: NOT APPLICABLE

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