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- EMDB-10101: Apoferritin from mouse at 1.84 angstrom resolution -

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Basic information

Entry
Database: EMDB / ID: EMD-10101
TitleApoferritin from mouse at 1.84 angstrom resolution
Map data
Sample
  • Complex: Octahedral complex of 24 apoferritin chains
    • Protein or peptide: Ferritin heavy chain
  • Ligand: FE (III) ION
  • Ligand: ZINC ION
  • Ligand: water
Keywordsiron ion binding / ferroxidase / iron storage / cytoplasm / METAL BINDING PROTEIN
Function / homology
Function and homology information


Iron uptake and transport / Golgi Associated Vesicle Biogenesis / negative regulation of ferroptosis / ferroxidase / autolysosome / ferroxidase activity / Neutrophil degranulation / endocytic vesicle lumen / ferric iron binding / autophagosome ...Iron uptake and transport / Golgi Associated Vesicle Biogenesis / negative regulation of ferroptosis / ferroxidase / autolysosome / ferroxidase activity / Neutrophil degranulation / endocytic vesicle lumen / ferric iron binding / autophagosome / iron ion transport / intracellular iron ion homeostasis / immune response / iron ion binding / negative regulation of cell population proliferation / mitochondrion / extracellular region / identical protein binding / membrane / cytosol
Similarity search - Function
Ferritin iron-binding regions signature 1. / Ferritin iron-binding regions signature 2. / Ferritin, conserved site / Ferritin / Ferritin-like diiron domain / Ferritin-like diiron domain profile. / Ferritin/DPS protein domain / Ferritin-like domain / Ferritin-like / Ferritin-like superfamily
Similarity search - Domain/homology
Ferritin heavy chain
Similarity search - Component
Biological speciesMus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 1.84 Å
AuthorsMills DJ / Pfeil-Gardiner O / Vonck J
CitationJournal: To Be Published
Title: To be published later
Authors: Vonck J / Mills DJ / Pfeil-Gardiner O
History
DepositionJul 2, 2019-
Header (metadata) releaseJul 10, 2019-
Map releaseJul 10, 2019-
UpdateMay 22, 2024-
Current statusMay 22, 2024Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.04
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.04
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6s61
  • Surface level: 0.04
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_10101.png

Downloads & links

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Map

FileDownload / File: emd_10101.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.66 Å/pix.
x 300 pix.
= 196.8 Å		0.66 Å/pix.
x 300 pix.
= 196.8 Å		0.66 Å/pix.
x 300 pix.
= 196.8 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.656 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.04 / Movie #1: 0.04
Minimum - Maximum-0.18645337 - 0.30330154
Average (Standard dev.)-0.00007399501 (±0.017432751)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 196.8 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.6560.6560.656
M x/y/z300300300
origin x/y/z0.0000.0000.000
length x/y/z196.800196.800196.800
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS300300300
D min/max/mean-0.1860.303-0.000

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Supplemental data

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Half map: mouse apoferritin, half map 1

Fileemd_10101_half_map_1.map
Annotationmouse apoferritin, half map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: mouse apoferritin, half map 2

Fileemd_10101_half_map_2.map
Annotationmouse apoferritin, half map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Octahedral complex of 24 apoferritin chains

EntireName: Octahedral complex of 24 apoferritin chains
Components
  • Complex: Octahedral complex of 24 apoferritin chains
    • Protein or peptide: Ferritin heavy chain
  • Ligand: FE (III) ION
  • Ligand: ZINC ION
  • Ligand: water

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Supramolecule #1: Octahedral complex of 24 apoferritin chains

SupramoleculeName: Octahedral complex of 24 apoferritin chains / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 500 KDa

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Macromolecule #1: Ferritin heavy chain

MacromoleculeName: Ferritin heavy chain / type: protein_or_peptide / ID: 1 / Number of copies: 24 / Enantiomer: LEVO / EC number: ferroxidase
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 21.097631 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MTTASPSQVR QNYHQDAEAA INRQINLELY ASYVYLSMSC YFDRDDVALK NFAKYFLHQS HEEREHAEKL MKLQNQRGGR IFLQDIKKP DRDDWESGLN AMECALHLEK SVNQSLLELH KLATDKNDPH LCDFIETYYL SEQVKSIKEL GDHVTNLRKM G APEAGMAE YLFDKHTLGH GDES

UniProtKB: Ferritin heavy chain

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Macromolecule #2: FE (III) ION

MacromoleculeName: FE (III) ION / type: ligand / ID: 2 / Number of copies: 6 / Formula: FE
Molecular weightTheoretical: 55.845 Da

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Macromolecule #3: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 3 / Number of copies: 24 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Macromolecule #4: water

MacromoleculeName: water / type: ligand / ID: 4 / Number of copies: 3854 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration1.5 mg/mL
BufferpH: 7.5 / Component:
ConcentrationNameFormula
5.0 mMHEPES
75.0 mMNaCl
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 283 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 1788 / Average exposure time: 30.0 sec. / Average electron dose: 30.0 e/Å2
Details: Some images were discarding after motion correction (MotionCor2) and ctf estimation (CTFfind4), leaving 1745 for processing.
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsCalibrated defocus max: 2.0 µm / Calibrated defocus min: 0.2 µm / Calibrated magnification: 182927 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 120000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 477115
Startup modelType of model: EMDB MAP
EMDB ID:

9599

Final reconstructionApplied symmetry - Point group: O (octahedral) / Resolution.type: BY AUTHOR / Resolution: 1.84 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3) / Number images used: 441902
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final 3D classificationSoftware - Name: RELION (ver. 3)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

2cih


Chain - Source name: PDB / Chain - Initial model type: experimental model
Detailsphenix.real-space-refine
RefinementSpace: REAL / Protocol: OTHER
Output model

PDB-6s61:
Apoferritin from mouse at 1.84 angstrom resolution

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