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- PDB-7o1q: Amyloid beta oligomer displayed on the alpha hemolysin scaffold -

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Basic information

Entry
Database: PDB / ID: 7o1q
TitleAmyloid beta oligomer displayed on the alpha hemolysin scaffold
ComponentsAlpha-hemolysin hybridized Abeta
KeywordsTOXIN / Amyloid beta oligomer / alpha hemolysin / Alzheimer's Disease
Function / homology
Function and homology information


cytolysis in another organism / regulation of epidermal growth factor-activated receptor activity / signaling receptor activator activity / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of synapse structure or activity / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of Wnt signaling pathway / axo-dendritic transport ...cytolysis in another organism / regulation of epidermal growth factor-activated receptor activity / signaling receptor activator activity / cytosolic mRNA polyadenylation / collateral sprouting in absence of injury / microglia development / regulation of synapse structure or activity / Formyl peptide receptors bind formyl peptides and many other ligands / regulation of Wnt signaling pathway / axo-dendritic transport / synaptic assembly at neuromuscular junction / smooth endoplasmic reticulum calcium ion homeostasis / axon midline choice point recognition / astrocyte activation involved in immune response / regulation of spontaneous synaptic transmission / mating behavior / NMDA selective glutamate receptor signaling pathway / ciliary rootlet / Lysosome Vesicle Biogenesis / PTB domain binding / Golgi-associated vesicle / positive regulation of amyloid fibril formation / neuron remodeling / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / protein serine/threonine kinase binding / Deregulated CDK5 triggers multiple neurodegenerative pathways in Alzheimer's disease models / : / nuclear envelope lumen / suckling behavior / presynaptic active zone / dendrite development / COPII-coated ER to Golgi transport vesicle / modulation of excitatory postsynaptic potential / TRAF6 mediated NF-kB activation / Advanced glycosylation endproduct receptor signaling / neuromuscular process controlling balance / The NLRP3 inflammasome / regulation of presynapse assembly / transition metal ion binding / regulation of multicellular organism growth / intracellular copper ion homeostasis / negative regulation of long-term synaptic potentiation / negative regulation of neuron differentiation / ECM proteoglycans / smooth endoplasmic reticulum / Mitochondrial protein degradation / positive regulation of T cell migration / spindle midzone / Purinergic signaling in leishmaniasis infection / positive regulation of calcium-mediated signaling / clathrin-coated pit / regulation of peptidyl-tyrosine phosphorylation / positive regulation of chemokine production / forebrain development / Notch signaling pathway / positive regulation of G2/M transition of mitotic cell cycle / neuron projection maintenance / positive regulation of protein metabolic process / ionotropic glutamate receptor signaling pathway / positive regulation of glycolytic process / cholesterol metabolic process / response to interleukin-1 / positive regulation of mitotic cell cycle / extracellular matrix organization / axonogenesis / adult locomotory behavior / trans-Golgi network membrane / platelet alpha granule lumen / locomotory behavior / positive regulation of peptidyl-threonine phosphorylation / dendritic shaft / learning / positive regulation of interleukin-1 beta production / central nervous system development / positive regulation of long-term synaptic potentiation / endosome lumen / astrocyte activation / Post-translational protein phosphorylation / positive regulation of JNK cascade / synapse organization / regulation of long-term neuronal synaptic plasticity / microglial cell activation / TAK1-dependent IKK and NF-kappa-B activation / visual learning / serine-type endopeptidase inhibitor activity / neuromuscular junction / recycling endosome / cognition / positive regulation of inflammatory response / Golgi lumen / neuron cellular homeostasis / endocytosis / positive regulation of non-canonical NF-kappaB signal transduction / cellular response to amyloid-beta / positive regulation of interleukin-6 production / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / neuron projection development / G2/M transition of mitotic cell cycle / positive regulation of tumor necrosis factor production / cell-cell junction
Similarity search - Function
Aerolysin/haemolysin toxin, conserved site / Aerolysin type toxins signature. / Bi-component toxin, staphylococci / Leukocidin/Hemolysin toxin / Leukocidin/Hemolysin toxin family / Leukocidin/porin MspA superfamily / Amyloidogenic glycoprotein, copper-binding / Amyloidogenic glycoprotein, copper-binding domain conserved site / Amyloidogenic glycoprotein, copper-binding domain superfamily / Copper-binding of amyloid precursor, CuBD ...Aerolysin/haemolysin toxin, conserved site / Aerolysin type toxins signature. / Bi-component toxin, staphylococci / Leukocidin/Hemolysin toxin / Leukocidin/Hemolysin toxin family / Leukocidin/porin MspA superfamily / Amyloidogenic glycoprotein, copper-binding / Amyloidogenic glycoprotein, copper-binding domain conserved site / Amyloidogenic glycoprotein, copper-binding domain superfamily / Copper-binding of amyloid precursor, CuBD / Amyloid precursor protein (APP) copper-binding (CuBD) domain signature. / Amyloidogenic glycoprotein, amyloid-beta peptide superfamily / Beta-amyloid peptide (beta-APP) / Amyloidogenic glycoprotein, amyloid-beta peptide / Beta-amyloid precursor protein C-terminal / Amyloidogenic glycoprotein, intracellular domain, conserved site / Beta-amyloid precursor protein C-terminus / Amyloid precursor protein (APP) intracellular domain signature. / Amyloid precursor protein (APP) E1 domain profile. / Amyloid precursor protein (APP) E2 domain profile. / Amyloidogenic glycoprotein, extracellular / Amyloidogenic glycoprotein, heparin-binding / Amyloidogenic glycoprotein, E2 domain / E2 domain superfamily / Amyloidogenic glycoprotein, heparin-binding domain superfamily / Amyloid A4 N-terminal heparin-binding / E2 domain of amyloid precursor protein / amyloid A4 / Amyloidogenic glycoprotein / Proteinase inhibitor I2, Kunitz, conserved site / Pancreatic trypsin inhibitor (Kunitz) family signature. / BPTI/Kunitz family of serine protease inhibitors. / Pancreatic trypsin inhibitor Kunitz domain / Kunitz/Bovine pancreatic trypsin inhibitor domain / Pancreatic trypsin inhibitor (Kunitz) family profile. / Pancreatic trypsin inhibitor Kunitz domain superfamily / PH-like domain superfamily
Similarity search - Domain/homology
Amyloid-beta precursor protein / Alpha-hemolysin
Similarity search - Component
Biological speciesStaphylococcus aureus (bacteria)
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsWu, J. / Blum, T.B. / Farrell, D.P. / DiMaio, F. / Abrahams, J.P. / Luo, J.
CitationJournal: Angew Chem Int Ed Engl / Year: 2021
Title: Cryo-electron Microscopy Imaging of Alzheimer's Amyloid-beta 42 Oligomer Displayed on a Functionally and Structurally Relevant Scaffold.
Authors: Jinming Wu / Thorsten B Blum / Daniel P Farrell / Frank DiMaio / Jan Pieter Abrahams / Jinghui Luo /
Abstract: Amyloid-β peptide (Aβ) oligomers are pathogenic species of amyloid aggregates in Alzheimer's disease. Like certain protein toxins, Aβ oligomers permeabilize cellular membranes, presumably through ...Amyloid-β peptide (Aβ) oligomers are pathogenic species of amyloid aggregates in Alzheimer's disease. Like certain protein toxins, Aβ oligomers permeabilize cellular membranes, presumably through a pore formation mechanism. Owing to their structural and stoichiometric heterogeneity, the structure of these pores remains to be characterized. We studied a functional Aβ42-pore equivalent, created by fusing Aβ42 to the oligomerizing, soluble domain of the α-hemolysin (αHL) toxin. Our data reveal Aβ42-αHL oligomers to share major structural, functional, and biological properties with wild-type Aβ42-pores. Single-particle cryo-EM analysis of Aβ42-αHL oligomers (with an overall 3.3 Å resolution) reveals the Aβ42-pore region to be intrinsically flexible. The Aβ42-αHL oligomers will allow many of the features of the wild-type amyloid oligomers to be studied that cannot be otherwise, and may be a highly specific antigen for the development of immuno-base diagnostics and therapies.
History
DepositionMar 30, 2021Deposition site: PDBE / Processing site: PDBE
Revision 1.0Apr 14, 2021Provider: repository / Type: Initial release
Revision 1.1Jun 9, 2021Group: Database references / Category: citation
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Aug 18, 2021Group: Database references / Category: citation / citation_author / database_2
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.title / _citation_author.identifier_ORCID / _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
A: Alpha-hemolysin hybridized Abeta
B: Alpha-hemolysin hybridized Abeta
C: Alpha-hemolysin hybridized Abeta
D: Alpha-hemolysin hybridized Abeta
E: Alpha-hemolysin hybridized Abeta
F: Alpha-hemolysin hybridized Abeta
G: Alpha-hemolysin hybridized Abeta


Theoretical massNumber of molelcules
Total (without water)234,2157
Polymers234,2157
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area37350 Å2
ΔGint-104 kcal/mol
Surface area78810 Å2
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
d_1ens_1chain "B"
d_2ens_1chain "A"
d_3ens_1chain "C"
d_4ens_1chain "D"
d_5ens_1chain "E"
d_6ens_1chain "F"
d_7ens_1chain "G"

NCS domain segments:
Dom-IDComponent-IDEns-IDBeg label comp-IDEnd label comp-IDLabel asym-IDLabel seq-ID
d_11ens_1ALAASNB1 - 293
d_21ens_1ALAASNA1 - 293
d_31ens_1ALAASNC1 - 293
d_41ens_1ALAASND1 - 293
d_51ens_1ALAASNE1 - 293
d_61ens_1ALAASNF1 - 293
d_71ens_1ALAASNG1 - 293

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Components

#1: Protein
Alpha-hemolysin hybridized Abeta / Alpha-HL / Alpha-toxin / Beta-secretase C-terminal fragment / Beta-CTF / C99 / Alpha-hemolysin


Mass: 33459.270 Da / Num. of mol.: 7
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Staphylococcus aureus (bacteria), (gene. exp.) Homo sapiens (human)
Gene: hly, hla, APP, A4, AD1
Production host: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
References: UniProt: P09616, UniProt: P05067

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Abeta42-AHL / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
Buffer solutionpH: 8
Details: 50 mM Tris-HCl, pH 8.0, 500 mM NaCl, 250 mM imidazole and 0.38 mM DDM
SpecimenConc.: 4.83 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD
VitrificationCryogen 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 FIELDBright-field microscopy
Image recordingElectron dose: 55 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

Software
NameVersionClassification
phenix.real_space_refine1.18.2_3874refinement
PHENIX1.18.2_3874refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 141366 / Symmetry type: POINT
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 59.28 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.006616898
ELECTRON MICROSCOPYf_angle_d0.507722869
ELECTRON MICROSCOPYf_chiral_restr0.04652415
ELECTRON MICROSCOPYf_plane_restr0.00262968
ELECTRON MICROSCOPYf_dihedral_angle_d9.9736202
Refine LS restraints NCS
Ens-IDDom-IDAuth asym-IDRefine-IDTypeRms dev position (Å)
ens_1d_2BELECTRON MICROSCOPYNCS constraints0.00066278579845
ens_1d_3BELECTRON MICROSCOPYNCS constraints0.000698418456953
ens_1d_4BELECTRON MICROSCOPYNCS constraints0.00070515066134
ens_1d_5BELECTRON MICROSCOPYNCS constraints0.000719403174756
ens_1d_6BELECTRON MICROSCOPYNCS constraints0.000709481271454
ens_1d_7BELECTRON MICROSCOPYNCS constraints0.0007073643025

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