8f4l

Structure of human apoferritin embedded in crystalline ice

Method: ELECTRON MICROSCOPY Dmax: 139.2 Å Quality: GOOD

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

Ferritin heavy chain

Homo sapiens

UniProt P02794

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 Chain B; UniProt 6–177 Chain C; UniProt 6–177 Chain D; UniProt 6–177 Chain E; UniProt 6–177 Chain F; UniProt 6–177 Chain G; UniProt 6–177 Chain H; UniProt 6–177 Chain I; UniProt 6–177 Chain J; UniProt 6–177 Chain K; UniProt 6–177 Chain L; UniProt 6–177 Chain M; UniProt 6–177 Chain N; UniProt 6–177 Chain O; UniProt 6–177 Chain P; UniProt 6–177 Chain Q; UniProt 6–177 Chain R; UniProt 6–177 Chain S; UniProt 6–177 Chain T; UniProt 6–177 Chain U; UniProt 6–177 Chain V; UniProt 6–177 Chain W; UniProt 6–177 Chain X; UniProt 6–177 Not recorded No other associated polymer ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE;Apo-ferritin embedded in crystalline ice. Resolution 2.40 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.

161 other PDB entries and 174 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name FRIH_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–172; UniProt 6–177 Author chain B; PDBConstruct 1–172; UniProt 6–177 Author chain C; PDBConstruct 1–172; UniProt 6–177 Author chain D; PDBConstruct 1–172; UniProt 6–177 Author chain E; PDBConstruct 1–172; UniProt 6–177 Author chain F; PDBConstruct 1–172; UniProt 6–177 Author chain G; PDBConstruct 1–172; UniProt 6–177 Author chain H; PDBConstruct 1–172; UniProt 6–177 Author chain I; PDBConstruct 1–172; UniProt 6–177 Author chain J; PDBConstruct 1–172; UniProt 6–177 Author chain K; PDBConstruct 1–172; UniProt 6–177 Author chain L; PDBConstruct 1–172; UniProt 6–177 Author chain M; PDBConstruct 1–172; UniProt 6–177 Author chain N; PDBConstruct 1–172; UniProt 6–177 Author chain O; PDBConstruct 1–172; UniProt 6–177 Author chain P; PDBConstruct 1–172; UniProt 6–177 Author chain Q; PDBConstruct 1–172; UniProt 6–177 Author chain R; PDBConstruct 1–172; UniProt 6–177 Author chain S; PDBConstruct 1–172; UniProt 6–177 Author chain T; PDBConstruct 1–172; UniProt 6–177 Author chain U; PDBConstruct 1–172; UniProt 6–177 Author chain V; PDBConstruct 1–172; UniProt 6–177 Author chain W; PDBConstruct 1–172; UniProt 6–177 Author chain X; 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 8f4l

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8f4l
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8f4l
Deposition date deposition_date2022-11-11
Structure title titleStructure of human apoferritin embedded in crystalline ice
Keywords keywordshuman apoferritin, apoferritin, crystalline ice, crystal ice, METAL BINDING PROTEIN, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier54.63
Radius of gyration Rg (electron density) rg_electron53.55
Forward intensity I(0) i03339580000.00
Molecular weight molecular_weight471240.0 kDa
Excluded volume excluded_volume583510 ų
Envelope volume envelope_volume981680 ų
Hydration-shell volume shell_volume150000 ų
Envelope diameter envelope_diameter136.2
Shell Rg shell_rg64.08
Envelope Rg envelope_rg48.06
Shape Rg shape_rg53.52
Total Rg total_rg53.94
Total atoms total_atoms33216
Residues n_residues4128
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 dmax139.2
Rg (real space) rg_real54.07
Rg uncertainty (real space) rg_real_error0.38
I(0) (real space) i0_real3.3400e+09
I(0) uncertainty (real space) i0_real_error5.3920e+07
Rg (reciprocal space) rg_reciprocal55.09
I(0) (reciprocal space) i0_reciprocal3345000000.0000
Solution quality estimate total_estimate0.7916
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary91.2
Skewness Skewness skewness-0.400
Kurtosis Kurtosis kurtosis-0.639
Angular range angular_range— – 0.1450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha40060000000.0000
Real-space data points n_real_points30
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.779; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.950; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

8. Citations (1)

9. Files and Curves (10)