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- EMDB-17737: ATTRG47E amyloid fibril from hereditary ATTR amloidosis -

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Basic information

Entry
Database: EMDB / ID: EMD-17737
TitleATTRG47E amyloid fibril from hereditary ATTR amloidosis
Map data
Sample
  • Complex: ATTRG47E amyloid fibril
    • Protein or peptide: Transthyretin
KeywordsTransthyretin / ATTR amyloidosis / ATTRG47E / amyloid fibril / misfolding disease / cryo-EM / PROTEIN FIBRIL
Function / homology
Function and homology information


Defective visual phototransduction due to STRA6 loss of function / negative regulation of glomerular filtration / The canonical retinoid cycle in rods (twilight vision) / purine nucleobase metabolic process / molecular sequestering activity / phototransduction, visible light / Non-integrin membrane-ECM interactions / retinoid metabolic process / Retinoid metabolism and transport / hormone activity ...Defective visual phototransduction due to STRA6 loss of function / negative regulation of glomerular filtration / The canonical retinoid cycle in rods (twilight vision) / purine nucleobase metabolic process / molecular sequestering activity / phototransduction, visible light / Non-integrin membrane-ECM interactions / retinoid metabolic process / Retinoid metabolism and transport / hormone activity / azurophil granule lumen / Amyloid fiber formation / Neutrophil degranulation / extracellular space / extracellular exosome / extracellular region / identical protein binding
Similarity search - Function
Transthyretin, conserved site / Transthyretin signature 2. / Transthyretin, thyroxine binding site / Transthyretin signature 1. / Transthyretin / Transthyretin/hydroxyisourate hydrolase / Transthyretin/hydroxyisourate hydrolase domain / Transthyretin/hydroxyisourate hydrolase domain superfamily / HIUase/Transthyretin family
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
Methodhelical reconstruction / cryo EM / Resolution: 2.3673 Å
AuthorsSteinebrei M / Schmidt M / Faendrich M
Funding support Germany, 1 items
OrganizationGrant numberCountry
German Research Foundation (DFG)FA 456/28 Germany
CitationJournal: Nat Commun / Year: 2023
Title: Common transthyretin-derived amyloid fibril structures in patients with hereditary ATTR amyloidosis.
Authors: Maximilian Steinebrei / Julian Baur / Anaviggha Pradhan / Niklas Kupfer / Sebastian Wiese / Ute Hegenbart / Stefan O Schönland / Matthias Schmidt / Marcus Fändrich /
Abstract: Systemic ATTR amyloidosis is an increasingly important protein misfolding disease that is provoked by the formation of amyloid fibrils from transthyretin protein. The pathological and clinical ...Systemic ATTR amyloidosis is an increasingly important protein misfolding disease that is provoked by the formation of amyloid fibrils from transthyretin protein. The pathological and clinical disease manifestations and the number of pathogenic mutational changes in transthyretin are highly diverse, raising the question whether the different mutations may lead to different fibril morphologies. Using cryo-electron microscopy, however, we show here that the fibril structure is remarkably similar in patients that are affected by different mutations. Our data suggest that the circumstances under which these fibrils are formed and deposited inside the body - and not only the fibril morphology - are crucial for defining the phenotypic variability in many patients.
History
DepositionJun 26, 2023-
Header (metadata) releaseDec 6, 2023-
Map releaseDec 6, 2023-
UpdateDec 6, 2023-
Current statusDec 6, 2023Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_17737.png

Downloads & links

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Map

FileDownload / File: emd_17737.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.93 Å/pix.
x 256 pix.
= 239.104 Å		0.93 Å/pix.
x 256 pix.
= 239.104 Å		0.93 Å/pix.
x 256 pix.
= 239.104 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.934 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.025
Minimum - Maximum-0.05042887 - 0.094476394
Average (Standard dev.)0.00014641492 (±0.0028059918)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 239.104 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_17737_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_17737_half_map_2.map
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : ATTRG47E amyloid fibril

EntireName: ATTRG47E amyloid fibril
Components
  • Complex: ATTRG47E amyloid fibril
    • Protein or peptide: Transthyretin

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Supramolecule #1: ATTRG47E amyloid fibril

SupramoleculeName: ATTRG47E amyloid fibril / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Details: amyloid fibril of Transthyretin with G47E mutation in hereditary ATTR amyloidosis
Source (natural)Organism: Homo sapiens (human) / Organ: Heart / Tissue: Heart muscle

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Macromolecule #1: Transthyretin

MacromoleculeName: Transthyretin / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human) / Organ: Heart
Molecular weightTheoretical: 13.849423 KDa
SequenceString:
GPTGTGESKC PLMVKVLDAV RGSPAINVAV HVFRKAADDT WEPFASEKTS ESGELHGLTT EEEFVEGIYK VEIDTKSYWK ALGISPFHE HAEVVFTAND SGPRRYTIAA LLSPYSYSTT AVVTNPKE

UniProtKB: Transthyretin

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Experimental details

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Structure determination

Methodcryo EM
Processinghelical reconstruction
Aggregation statehelical array

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Sample preparation

BufferpH: 7 / Details: Water
GridModel: C-flat-1.2/1.3 / Material: COPPER / Mesh: 400 / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 295.15 K / Instrument: LEICA EM GP
Detailsamyloid fibril of Transthyretin with G47E mutation

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Number grids imaged: 1 / Number real images: 12067 / Average exposure time: 9.0 sec. / Average electron dose: 41.63 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Helical parameters - Δz: 4.81 Å
Applied symmetry - Helical parameters - Δ&Phi: -1.24 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 2.3673 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: PHENIX / Number images used: 184025
Segment selectionNumber selected: 502445 / Software - Name: RELION (ver. 3.1)
Startup modelType of model: OTHER / Details: featureless cylinder
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

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