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- PDB-8f4l: Structure of human apoferritin embedded in crystalline ice -

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Basic information

Entry
Database: PDB / ID: 8f4l
TitleStructure of human apoferritin embedded in crystalline ice
ComponentsFerritin heavy chain
KeywordsOXIDOREDUCTASE / human apoferritin / apoferritin / crystalline ice / crystal ice / METAL BINDING PROTEIN
Function / homology
Function and homology information


iron ion sequestering activity / : / autolysosome / Scavenging by Class A Receptors / Golgi Associated Vesicle Biogenesis / ferroxidase / intracellular sequestering of iron ion / ferroxidase activity / negative regulation of fibroblast proliferation / ferric iron binding ...iron ion sequestering activity / : / autolysosome / Scavenging by Class A Receptors / Golgi Associated Vesicle Biogenesis / ferroxidase / intracellular sequestering of iron ion / ferroxidase activity / negative regulation of fibroblast proliferation / ferric iron binding / Iron uptake and transport / ferrous iron binding / tertiary granule lumen / iron ion transport / intracellular iron ion homeostasis / ficolin-1-rich granule lumen / iron ion binding / immune response / negative regulation of cell population proliferation / Neutrophil degranulation / extracellular exosome / extracellular region / identical protein binding / membrane / nucleus / cytoplasm / 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 speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.4 Å
AuthorsShi, H. / Wu, C. / Zhang, X.
Funding support China, 1items
OrganizationGrant numberCountry
National Science Foundation (NSF, China)31930069 China
CitationJournal: To Be Published
Title: Addressing Compressive Deformation of Proteins Embedded in Crystalline Ice
Authors: Shi, H. / Wu, C. / Zhang, X.
History
DepositionNov 11, 2022Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 19, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
U: Ferritin heavy chain
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
V: Ferritin heavy chain
W: Ferritin heavy chain
X: Ferritin heavy chain


Theoretical massNumber of molelcules
Total (without water)482,79724
Polymers482,79724
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein ...
Ferritin heavy chain / Ferritin H subunit / Cell proliferation-inducing gene 15 protein


Mass: 20116.547 Da / Num. of mol.: 24
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: FTH1, FTH, FTHL6, OK/SW-cl.84, PIG15 / Production host: Escherichia coli (E. coli) / References: UniProt: P02794, ferroxidase

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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: Human apoferritin embedded in crystalline ice / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
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 / Details: Apo-ferritin embedded in crystalline ice.

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
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: 500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.20_4459: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: O (octahedral)
3D reconstructionResolution: 2.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 9200 / Algorithm: BACK PROJECTION / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00233912
ELECTRON MICROSCOPYf_angle_d0.52445792
ELECTRON MICROSCOPYf_dihedral_angle_d4.294464
ELECTRON MICROSCOPYf_chiral_restr0.0364896
ELECTRON MICROSCOPYf_plane_restr0.0036024

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