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- EMDB-60915: Cryo-EM structure of mouse heavy-chain apoferritin resolved at 1.... -

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Basic information

Entry
Database: EMDB / ID: EMD-60915
TitleCryo-EM structure of mouse heavy-chain apoferritin resolved at 1.51 Angstroms
Map data
Sample
  • Complex: Homo 24-mer of mouse heavy-chain apoferritin (Octahedral symmetry)
    • Protein or peptide: Ferritin heavy chain
  • Ligand: MAGNESIUM ION
  • Ligand: POTASSIUM ION
  • Ligand: FE (III) ION
  • Ligand: water
Keywordscryo-EM / mouse / heavy-chain apoferritin / Mus musculus / OXIDOREDUCTASE
Function / homology
Function and homology information


Iron uptake and transport / Golgi Associated Vesicle Biogenesis / iron ion sequestering activity / negative regulation of ferroptosis / ferroxidase / autolysosome / ferroxidase activity / negative regulation of fibroblast proliferation / Neutrophil degranulation / endocytic vesicle lumen ...Iron uptake and transport / Golgi Associated Vesicle Biogenesis / iron ion sequestering activity / negative regulation of ferroptosis / ferroxidase / autolysosome / ferroxidase activity / negative regulation of fibroblast proliferation / Neutrophil degranulation / endocytic vesicle lumen / ferric iron binding / autophagosome / ferrous iron binding / 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: 1.51 Å
AuthorsWang CH / Wu KP / Chang YC
Funding support Taiwan, 1 items
OrganizationGrant numberCountry
Academia Sinica (Taiwan) Taiwan
CitationJournal: To Be Published
Title: Cryo-EM structure of mouse heavy-chain apoferritin resolved at 1.51 Angstroms
Authors: Wang CH / Wu KP / Chang YC
History
DepositionJul 22, 2024-
Header (metadata) releaseAug 21, 2024-
Map releaseAug 21, 2024-
UpdateAug 21, 2024-
Current statusAug 21, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_60915.png

Downloads & links

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Map

FileDownload / File: emd_60915.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.65 Å/pix.
x 384 pix.
= 248.832 Å		0.65 Å/pix.
x 384 pix.
= 248.832 Å		0.65 Å/pix.
x 384 pix.
= 248.832 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.648 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.3
Minimum - Maximum-1.6210159 - 3.7312748
Average (Standard dev.)-0.00018032291 (±0.10091898)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 248.832 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_60915_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_60915_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Homo 24-mer of mouse heavy-chain apoferritin (Octahedral symmetry)

EntireName: Homo 24-mer of mouse heavy-chain apoferritin (Octahedral symmetry)
Components
  • Complex: Homo 24-mer of mouse heavy-chain apoferritin (Octahedral symmetry)
    • Protein or peptide: Ferritin heavy chain
  • Ligand: MAGNESIUM ION
  • Ligand: POTASSIUM ION
  • Ligand: FE (III) ION
  • Ligand: water

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Supramolecule #1: Homo 24-mer of mouse heavy-chain apoferritin (Octahedral symmetry)

SupramoleculeName: Homo 24-mer of mouse heavy-chain apoferritin (Octahedral symmetry)
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Mus musculus (house mouse)

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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: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 2 / Number of copies: 32 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #3: POTASSIUM ION

MacromoleculeName: POTASSIUM ION / type: ligand / ID: 3 / Number of copies: 24 / Formula: K
Molecular weightTheoretical: 39.098 Da

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Macromolecule #4: FE (III) ION

MacromoleculeName: FE (III) ION / type: ligand / ID: 4 / Number of copies: 6 / Formula: FE
Molecular weightTheoretical: 55.845 Da

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Macromolecule #5: water

MacromoleculeName: water / type: ligand / ID: 5 / Number of copies: 3288 / 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

BufferpH: 7.5 / Details: 30 mM HEPES, 150 mM NaCl, 1mM DTT
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.251 µm / Nominal defocus min: 0.582 µm / Nominal magnification: 130000
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

Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 1.51 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 1020095
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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