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- PDB-7rl4: Cryo-EM structure of human PrP23-144 amyloid fibrils -

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Basic information

Entry
Database: PDB / ID: 7rl4
TitleCryo-EM structure of human PrP23-144 amyloid fibrils
ComponentsMajor prion protein
KeywordsPROTEIN FIBRIL / Prion / amyloid
Function / homology
Function and homology information


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 / positive regulation of glutamate receptor signaling pathway / glycosaminoglycan binding / NCAM1 interactions / type 5 metabotropic glutamate receptor binding / ATP-dependent protein binding ...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 / positive regulation of glutamate receptor signaling pathway / glycosaminoglycan binding / NCAM1 interactions / type 5 metabotropic glutamate receptor binding / ATP-dependent protein binding / negative regulation of interleukin-17 production / cupric ion binding / regulation of potassium ion transmembrane transport / negative regulation of protein processing / negative regulation of dendritic spine maintenance / dendritic spine maintenance / negative regulation of calcineurin-NFAT signaling cascade / extrinsic component of membrane / negative regulation of interleukin-2 production / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / negative regulation of T cell receptor signaling pathway / negative regulation of activated T cell proliferation / negative regulation of amyloid-beta formation / response to amyloid-beta / cuprous ion binding / 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 / inclusion body / neuron projection maintenance / tubulin binding / 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 / cellular response to amyloid-beta / terminal bouton / positive regulation of neuron apoptotic process / signaling receptor activity / 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 / postsynapse / regulation of cell cycle / postsynaptic density / intracellular signal transduction / membrane raft / copper ion binding / external side of plasma membrane / intracellular membrane-bounded organelle / dendrite / negative regulation of apoptotic process / protein-containing complex binding / cell surface / endoplasmic reticulum / negative regulation of transcription by RNA polymerase II / Golgi apparatus / extracellular exosome / identical protein binding / plasma membrane / cytoplasm / cytosol
Similarity search - Function
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
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 2.86 Å
AuthorsLi, Q. / Surewicz, W.K.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01 GM094357 United States
CitationJournal: Nat Struct Mol Biol / Year: 2022
Title: Cryo-EM structure of disease-related prion fibrils provides insights into seeding barriers.
Authors: Qiuye Li / Christopher P Jaroniec / Witold K Surewicz /
Abstract: One of the least understood aspects of prion diseases is the structure of infectious prion protein aggregates. Here we report a high-resolution cryo-EM structure of amyloid fibrils formed by human ...One of the least understood aspects of prion diseases is the structure of infectious prion protein aggregates. Here we report a high-resolution cryo-EM structure of amyloid fibrils formed by human prion protein with the Y145Stop mutation that is associated with a familial prion disease. This structural insight allows us not only to explain previous biochemical findings, but also provides direct support for the conformational adaptability model of prion transmissibility barriers.
History
DepositionJul 23, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 27, 2022Provider: repository / Type: Initial release
Revision 1.1Feb 8, 2023Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Jun 5, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Major prion protein
B: Major prion protein
K: Major prion protein
P: Major prion protein
C: Major prion protein
G: Major prion protein
L: Major prion protein
Q: Major prion protein
D: Major prion protein
H: Major prion protein
M: Major prion protein
R: Major prion protein
E: Major prion protein
I: Major prion protein
N: Major prion protein
S: Major prion protein
F: Major prion protein
J: Major prion protein
O: Major prion protein
T: Major prion protein


Theoretical massNumber of molelcules
Total (without water)250,83520
Polymers250,83520
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area57690 Å2
ΔGint-431 kcal/mol
Surface area20580 Å2

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Components

#1: Protein
Major prion protein / PrP / ASCR / PrP27-30 / PrP33-35C


Mass: 12541.743 Da / Num. of mol.: 20 / Fragment: residues 23-144
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PRNP, ALTPRP, PRIP, PRP / Production host: Escherichia coli (E. coli) / References: UniProt: P04156

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: FILAMENT / 3D reconstruction method: helical reconstruction

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Sample preparation

ComponentName: PrP23-144 amyloid fibrils / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 6.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 53 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: -2.41 ° / Axial rise/subunit: 4.71 Å / Axial symmetry: C2
3D reconstructionResolution: 2.86 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 46803 / Symmetry type: HELICAL

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