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- PDB-6uur: Human prion protein fibril, M129 variant -

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Basic information

Entry
Database: PDB / ID: 6uur
TitleHuman prion protein fibril, M129 variant
ComponentsMajor prion protein
KeywordsPROTEIN FIBRIL / amyloid / fibril / prion / filament / fiber / PrP
Function / homology
Function and homology information


negative regulation of amyloid precursor protein catabolic process / regulation of glutamate receptor signaling pathway / lamin binding / regulation of calcium ion import across plasma membrane / positive regulation of glutamate receptor signaling pathway / aspartic-type endopeptidase inhibitor activity / glycosaminoglycan binding / ATP-dependent protein binding / NCAM1 interactions / type 5 metabotropic glutamate receptor binding ...negative regulation of amyloid precursor protein catabolic process / regulation of glutamate receptor signaling pathway / lamin binding / regulation of calcium ion import across plasma membrane / positive regulation of glutamate receptor signaling pathway / aspartic-type endopeptidase inhibitor activity / glycosaminoglycan binding / ATP-dependent protein binding / NCAM1 interactions / 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 protein processing / dendritic spine maintenance / negative regulation of calcineurin-NFAT signaling cascade / extrinsic component of membrane / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / 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 / response to amyloid-beta / negative regulation of type II interferon production / negative regulation of long-term synaptic potentiation / positive regulation of protein targeting to membrane / intracellular copper ion homeostasis / long-term memory / response to cadmium ion / inclusion body / cellular response to copper ion / neuron projection maintenance / tubulin binding / 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 / signaling receptor activity / amyloid-beta binding / protein-folding chaperone binding / protease binding / microtubule binding / nuclear membrane / molecular adaptor activity / response to oxidative stress / 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 / protein-containing complex binding / negative regulation of apoptotic process / negative regulation of transcription by RNA polymerase II / cell surface / Golgi apparatus / endoplasmic reticulum / extracellular exosome / identical protein binding / plasma membrane / cytosol / cytoplasm
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: 3.5 Å
AuthorsGlynn, C. / Sawaya, M.R. / Ge, P. / Zhou, Z.H. / Rodriguez, J.A.
Funding support United States, 1items
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, 2019Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 15, 2020Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 15, 2020Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2020Group: Database references / Category: citation / citation_author
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Revision 1.2May 27, 2020Group: Database references / Category: citation
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Revision 1.3Mar 6, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.4May 21, 2025Group: Data collection / Structure summary / Category: em_admin / em_software / pdbx_entry_details / Item: _em_admin.last_update / _em_software.name
Revision 1.1May 21, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Assembly

Deposited unit
A: Major prion protein
B: Major prion protein
C: Major prion protein
D: Major prion protein
E: Major prion protein
F: Major prion protein
G: Major prion protein
H: Major prion protein
I: Major prion protein
J: Major prion protein


Theoretical massNumber of molelcules
Total (without water)96,85810
Polymers96,85810
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy, Gel filtration, mass spectrometry
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area30500 Å2
ΔGint-203 kcal/mol
Surface area12900 Å2
SymmetryHelical symmetry: (Circular symmetry: 1 / Dyad axis: no / N subunits divisor: 1 / Num. of operations: 10 / Rise per n subunits: 2.4 Å / Rotation per n subunits: 179.3 °)

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Components

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


Mass: 9685.771 Da / Num. of mol.: 10 / Fragment: UNP residues 94-178
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
Has protein modificationN

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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: Fiber of human prion protein / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightUnits: KILODALTONS/NANOMETER / Experimental value: YES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: unspecified
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 1.2 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.16_3549: / Classification: refinement
EM software
IDNameCategory
2Leginonimage acquisition
4GctfCTF correction
8PHENIXmodel refinement
13RELION3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: 179.3 ° / Axial rise/subunit: 2.4 Å / Axial symmetry: C1
3D reconstructionResolution: 3.5 Å / Resolution method: FSC 0.5 CUT-OFF / Num. of particles: 76246 / Symmetry type: HELICAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0042820
ELECTRON MICROSCOPYf_angle_d0.7523760
ELECTRON MICROSCOPYf_dihedral_angle_d6.2761610
ELECTRON MICROSCOPYf_chiral_restr0.051390
ELECTRON MICROSCOPYf_plane_restr0.002480

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