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

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Basic information

Database: PDB / ID: 6s61
TitleApoferritin from mouse at 1.84 angstrom resolution
ComponentsFerritin heavy chain
KeywordsMETAL BINDING PROTEIN / iron ion binding / ferroxidase / iron storage / cytoplasm
Function / homology
Function and homology information

autolysosome / ferroxidase / intracellular sequestering of iron ion / ferroxidase activity / negative regulation of fibroblast proliferation / endocytic vesicle lumen / ferric iron binding / ferrous iron binding / iron ion transport / immune response ...autolysosome / ferroxidase / intracellular sequestering of iron ion / ferroxidase activity / negative regulation of fibroblast proliferation / endocytic vesicle lumen / ferric iron binding / ferrous iron binding / iron ion transport / immune response / iron ion binding / negative regulation of cell population proliferation / mitochondrion / go:0005623: / extracellular region / cytoplasm
Ferritin-like domain / Ferritin, conserved site / Ferritin-like / Ferritin-like superfamily / Ferritin-like diiron domain / Ferritin/DPS protein domain / Ferritin / Ferritin, core subunit, four-helix bundle / Ferritin / Up-down Bundle / Mainly Alpha
Ferritin heavy chain
Biological speciesMus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 1.84 Å
AuthorsVonck, J. / Pfeil-Gardiner, O. / Mills, D.J.
CitationJournal: To Be Published
Title: To be published later
Authors: Vonck, J. / Mills, D.J. / Pfeil-Gardiner, O.
Validation Report
SummaryFull reportAbout validation report
DepositionJul 2, 2019Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 10, 2019Provider: repository / Type: Initial release

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Deposited unit
A: Ferritin heavy chain
B: Ferritin heavy chain
C: Ferritin heavy chain
D: Ferritin heavy chain
E: Ferritin heavy chain
F: Ferritin heavy chain
G: Ferritin heavy chain
H: Ferritin heavy chain
I: Ferritin heavy chain
J: Ferritin heavy chain
K: Ferritin heavy chain
L: Ferritin heavy chain
M: Ferritin heavy chain
N: Ferritin heavy chain
O: Ferritin heavy chain
P: Ferritin heavy chain
Q: Ferritin heavy chain
R: Ferritin heavy chain
S: Ferritin heavy chain
T: Ferritin heavy chain
U: Ferritin heavy chain
V: Ferritin heavy chain
W: Ferritin heavy chain
X: Ferritin heavy chain
hetero molecules

Theoretical massNumber of molelcules
Total (without water)508,24854

TypeNameSymmetry operationNumber
identity operation1_5551
Buried area95410 Å2
ΔGint-1412 kcal/mol
Surface area142940 Å2


#1: Protein ...
Ferritin heavy chain / / Ferritin H subunit /

Mass: 21097.631 Da / Num. of mol.: 24
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Fth1, Fth / Production host: Escherichia coli (E. coli) / References: UniProt: P09528, ferroxidase
#2: Chemical
ChemComp-FE / FE (III) ION / Iron

Mass: 55.845 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Fe
#3: Chemical...
ChemComp-ZN / ZINC ION / Zinc

Mass: 65.409 Da / Num. of mol.: 24 / Source method: isolated from a natural source / Formula: Zn
#4: Water ChemComp-HOH / water / Water

Mass: 18.015 Da / Num. of mol.: 3854 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestN

Experimental details


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

Sample preparation

ComponentName: Octahedral complex of 24 apoferritin chains / Type: COMPLEX / Entity ID: 1 / Source: RECOMBINANT
Molecular weightValue: 0.5 MDa / Experimental value: NO
Source (natural)Organism: Mus musculus (house mouse)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
Buffer component
275 mMNaClSodium chloride1
SpecimenConc.: 1.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 283 K

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 / Nominal magnification: 120000 X / Calibrated magnification: 182927 X / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm / Calibrated defocus min: 200 nm / Calibrated defocus max: 2000 nm / Cs: 2.7 mm / Alignment procedure: COMA FREE
Image recordingAverage exposure time: 30 sec. / Electron dose: 30 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON III (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 1788
Details: Some images were discarding after motion correction (MotionCor2) and ctf estimation (CTFfind4), leaving 1745 for processing.


SoftwareName: PHENIX / Version: 1.12_2829: / Classification: refinement
EM software
1SPHIREparticle selection
2EPUimage acquisition
4CTFFIND4CTF correction
7Coot0.8.9.1model fitting
9PHENIXmodel refinement
13RELION33D reconstruction
Particle selectionNum. of particles selected: 477115
SymmetryPoint symmetry: O (octahedral)
3D reconstructionResolution: 1.84 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 441902 / Symmetry type: POINT
Atomic model buildingProtocol: OTHER / Space: REAL / Details: phenix.real-space-refine
Atomic model buildingPDB-ID: 2CIH

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