+Open data
-Basic information
Entry | Database: PDB / ID: 8pkf | ||||||
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Title | ATTRG47E amyloid fibril from hereditary ATTR amloidosis | ||||||
Components | Transthyretin | ||||||
Keywords | PROTEIN FIBRIL / Transthyretin / ATTR amyloidosis / ATTRG47E / amyloid fibril / misfolding disease / cryo-EM | ||||||
Function / homology | Function and homology information Retinoid cycle disease events / thyroid hormone binding / The canonical retinoid cycle in rods (twilight vision) / purine nucleobase metabolic process / Non-integrin membrane-ECM interactions / Retinoid metabolism and transport / hormone activity / azurophil granule lumen / Amyloid fiber formation / Neutrophil degranulation ...Retinoid cycle disease events / thyroid hormone binding / The canonical retinoid cycle in rods (twilight vision) / purine nucleobase metabolic process / Non-integrin membrane-ECM interactions / 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 | ||||||
Biological species | Homo sapiens (human) | ||||||
Method | ELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 2.3673 Å | ||||||
Authors | Steinebrei, M. / Schmidt, M. / Faendrich, M. | ||||||
Funding support | Germany, 1items
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Citation | Journal: 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 |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8pkf.cif.gz | 114.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8pkf.ent.gz | 88.1 KB | Display | PDB format |
PDBx/mmJSON format | 8pkf.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8pkf_validation.pdf.gz | 1011.8 KB | Display | wwPDB validaton report |
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Full document | 8pkf_full_validation.pdf.gz | 1011.1 KB | Display | |
Data in XML | 8pkf_validation.xml.gz | 27.7 KB | Display | |
Data in CIF | 8pkf_validation.cif.gz | 40.5 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/pk/8pkf ftp://data.pdbj.org/pub/pdb/validation_reports/pk/8pkf | HTTPS FTP |
-Related structure data
Related structure data | 17737MC 8pkeC 8pkgC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 13849.423 Da / Num. of mol.: 6 / Mutation: G47E / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Organ: Heart / References: UniProt: P02766 |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: HELICAL ARRAY / 3D reconstruction method: helical reconstruction |
-Sample preparation
Component | Name: ATTRG47E amyloid fibril / Type: COMPLEX Details: amyloid fibril of Transthyretin with G47E mutation in hereditary ATTR amyloidosis Entity ID: all / Source: NATURAL |
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Source (natural) | Organism: Homo sapiens (human) / Organ: Heart / Tissue: Heart muscle |
Buffer solution | pH: 7 / Details: Water |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: amyloid fibril of Transthyretin with G47E mutation |
Specimen support | Grid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: C-flat-1.2/1.3 |
Vitrification | Instrument: LEICA EM GP / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 295.15 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm |
Image recording | Average exposure time: 9 sec. / Electron dose: 41.63 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 12067 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||
Helical symmerty | Angular rotation/subunit: -1.24 ° / Axial rise/subunit: 4.81 Å / Axial symmetry: C1 | ||||||||||||||||
Particle selection | Num. of particles selected: 502445 | ||||||||||||||||
3D reconstruction | Resolution: 2.3673 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 184025 / Symmetry type: HELICAL |