22ix

cryo-ET subtomogram-averaged structure of mouse heavy-chain apoferritin resolved at 2.71 Angstroms

Method: ELECTRON MICROSCOPY Dmax: 130.5 Å Quality: GOOD

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 1–182 Chain B; UniProt 1–182 Chain C; UniProt 1–182 Chain D; UniProt 1–182 Chain E; UniProt 1–182 Chain F; UniProt 1–182 Chain G; UniProt 1–182 Chain H; UniProt 1–182 Chain I; UniProt 1–182 Chain J; UniProt 1–182 Chain K; UniProt 1–182 Chain L; UniProt 1–182 Chain M; UniProt 1–182 Chain N; UniProt 1–182 Chain O; UniProt 1–182 Chain P; UniProt 1–182 Chain Q; UniProt 1–182 Chain R; UniProt 1–182 Chain S; UniProt 1–182 Chain T; UniProt 1–182 Chain U; UniProt 1–182 Chain V; UniProt 1–182 Chain W; UniProt 1–182 Chain X; UniProt 1–182 Not recorded MG MAGNESIUM ION × 38 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;30 mM HEPES 150 mM NaCl 1 mM DTT cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.71 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 28 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 1–182; UniProt 1–182 Author chain B; PDBConstruct 1–182; UniProt 1–182 Author chain C; PDBConstruct 1–182; UniProt 1–182 Author chain D; PDBConstruct 1–182; UniProt 1–182 Author chain E; PDBConstruct 1–182; UniProt 1–182 Author chain F; PDBConstruct 1–182; UniProt 1–182 Author chain G; PDBConstruct 1–182; UniProt 1–182 Author chain H; PDBConstruct 1–182; UniProt 1–182 Author chain I; PDBConstruct 1–182; UniProt 1–182 Author chain J; PDBConstruct 1–182; UniProt 1–182 Author chain K; PDBConstruct 1–182; UniProt 1–182 Author chain L; PDBConstruct 1–182; UniProt 1–182 Author chain M; PDBConstruct 1–182; UniProt 1–182 Author chain N; PDBConstruct 1–182; UniProt 1–182 Author chain O; PDBConstruct 1–182; UniProt 1–182 Author chain P; PDBConstruct 1–182; UniProt 1–182 Author chain Q; PDBConstruct 1–182; UniProt 1–182 Author chain R; PDBConstruct 1–182; UniProt 1–182 Author chain S; PDBConstruct 1–182; UniProt 1–182 Author chain T; PDBConstruct 1–182; UniProt 1–182 Author chain U; PDBConstruct 1–182; UniProt 1–182 Author chain V; PDBConstruct 1–182; UniProt 1–182 Author chain W; PDBConstruct 1–182; UniProt 1–182 Author chain X; PDBConstruct 1–182; UniProt 1–182

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 22ix

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 22ix
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2. Structure Basics 2. Structure Basics

Entry ID entry_id22ix
Deposition date deposition_date2026-01-13
Structure title titlecryo-ET subtomogram-averaged structure of mouse heavy-chain apoferritin resolved at 2.71 Angstroms
Keywords keywordscryo-ET, subtomogram-average, mouse heavy-chain apoferritin, 2.71 Angstroms, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier53.79
Radius of gyration Rg (electron density) rg_electron52.82
Forward intensity I(0) i03607310000.00
Molecular weight molecular_weight486920.0 kDa
Excluded volume excluded_volume601860 ų
Envelope volume envelope_volume963780 ų
Hydration-shell volume shell_volume148160 ų
Envelope diameter envelope_diameter136.3
Shell Rg shell_rg63.69
Envelope Rg envelope_rg47.81
Shape Rg shape_rg52.80
Total Rg total_rg53.18
Total atoms total_atoms34238
Residues n_residues4176
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 dmax130.5
Rg (real space) rg_real53.25
Rg uncertainty (real space) rg_real_error0.33
I(0) (real space) i0_real3.6070e+09
I(0) uncertainty (real space) i0_real_error4.9150e+07
Rg (reciprocal space) rg_reciprocal54.22
I(0) (reciprocal space) i0_reciprocal3612000000.0000
Solution quality estimate total_estimate0.7978
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary85.5
Skewness Skewness skewness-0.379
Kurtosis Kurtosis kurtosis-0.641
Angular range angular_range— – 0.1450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha219100000000.0000
Real-space data points n_real_points30
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.893; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.687; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

8. Citations (1)

9. Files and Curves (10)