8j5a

Single-particle cryo-EM structure of mouse apoferritin at 1.19 Angstrom resolution (Dataset A)

Method: ELECTRON MICROSCOPY Dmax: 66.7 Å Quality: REASONABLE

1. Protein Identity and Related Structures Protein Identity & Related Structures

Ferritin heavy chain

Mus musculus

UniProt P09528

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 24 PDB declaration: 24-meric(24) Consistent with protein copy count Chain A; UniProt 6–177 Not recorded NA SODIUM ION × 24 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen NITROGEN Resolution 1.19 Å
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 6–177 Not recorded NA SODIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen NITROGEN Resolution 1.19 Å
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 6–177 Not recorded NA SODIUM ION × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen NITROGEN Resolution 1.19 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

26 other PDB entries and 26 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name FRIH_MOUSE
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–172; UniProt 6–177

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 8j5a

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8j5a
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8j5a
Deposition date deposition_date2023-04-21
Structure title titleSingle-particle cryo-EM structure of mouse apoferritin at 1.19 Angstrom resolution (Dataset A)
Keywords keywordssingle-particle cryo-EM, Cold field emission, CFEG, Apoferritin, CRYO ARM, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier18.68
Radius of gyration Rg (electron density) rg_electron17.89
Forward intensity I(0) i07028850.00
Molecular weight molecular_weight18951.0 kDa
Excluded volume excluded_volume23460 ų
Envelope volume envelope_volume26300 ų
Hydration-shell volume shell_volume13324 ų
Envelope diameter envelope_diameter66.8
Shell Rg shell_rg22.41
Envelope Rg envelope_rg18.36
Shape Rg shape_rg17.87
Total Rg total_rg18.67
Total atoms total_atoms2035
Residues n_residues172
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax66.7
Rg (real space) rg_real18.81
Rg uncertainty (real space) rg_real_error0.58
I(0) (real space) i0_real7.0290e+06
I(0) uncertainty (real space) i0_real_error9.8830e+04
Rg (reciprocal space) rg_reciprocal18.79
I(0) (reciprocal space) i0_reciprocal7029000.0000
Solution quality estimate total_estimate0.5492
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary18.3
Skewness Skewness skewness0.531
Kurtosis Kurtosis kurtosis-0.242
Angular range angular_range— – 0.4250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1778000.0000
Real-space data points n_real_points74
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.603; Stabil: 1.000; Sysdev: 0.197; Positv: 1.000; Valcen: 0.736; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id8j5aA01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology1260 — Ferritin
Homologous superfamily homologous superfamily10 — Ferritin, core subunit, four-helix bundle

8. Citations (1)

9. Files and Curves (10)