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- PDB-8tu8: Cryo-EM structure of Apoferritin collected by SerialEM on Glacios... -

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Basic information

Entry
Database: PDB / ID: 8tu8
TitleCryo-EM structure of Apoferritin collected by SerialEM on Glacios at 2.1 Angstrom resolution
ComponentsFerritin heavy chain
KeywordsMETAL BINDING PROTEIN / Apoferritin / Glacios / Falcon4 / Selectris energy filter / benchmark
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)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.1 Å
AuthorsJia, L. / Ruben, E.A. / Olsen, S.K. / Wasmuth, E.V.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) United States
CitationJournal: To Be Published
Title: Cryo-EM structure of Apoferritin collected by SerialEM on Glacios at 2.1 Angstrom resolution
Authors: Jia, L. / Ruben, E.A. / Olsen, S.K. / Wasmuth, E.V.
History
DepositionAug 15, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 18, 2024Provider: repository / Type: Initial release
Revision 1.0Dec 18, 2024Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Dec 18, 2024Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Dec 18, 2024Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Dec 18, 2024Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Dec 18, 2024Data content type: Mask / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Dec 18, 2024Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1May 14, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1May 14, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

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
Polymers506,34324
Non-polymers1,90530
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#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


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


Mass: 65.409 Da / Num. of mol.: 24 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY
Has protein modificationN

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Experimental details

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Experiment

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

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Sample preparation

ComponentName: Apoferritin / Type: CELL / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Mus musculus (house mouse)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

MicroscopyModel: TFS GLACIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 54 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 261652 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00434512
ELECTRON MICROSCOPYf_angle_d0.57746416
ELECTRON MICROSCOPYf_dihedral_angle_d4.4384512
ELECTRON MICROSCOPYf_chiral_restr0.0354848
ELECTRON MICROSCOPYf_plane_restr0.0046096

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