6b8f

Contracted Human Heavy-Chain Ferritin Crystal-Hydrogel Hybrid

Method: X-RAY DIFFRACTION Dmax: 65.7 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 2–183 Not recorded FE FE (III) ION × 48 CA CALCIUM ION × 264 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;Reservoir: 500 uL of 25 mM HEPES pH 7.0 with 10 mM CaCl2 Well: 2 uL of reservoir solution and 2 uL of 2.5 uM ferritin (by 24-mer) in 15 mM TRIS pH 7.4 with 150 mM NaCl After crystals formed, a crystal was harvested and soaked in a buffered solution comprised of 25 mM HEPES pH 7.0, 30 mM CaCl2, 8.6 % (w/v) sodium acrylate, 2.5 % (w/v) acrylamide, and 0.2 % (w/v) Bis-acrylamide overnight. Crystal was transferred to a solution containing 1 % APS and 1% TEMED with 4 M NaCl for 5 min. Crystal was then transferred to a clean slide and soaked in 30 uL H2O for 5 min. This solution was removed and the crystal was soaked in 1 M CaCl2 for 2 min. The crystal was removed, cryoprotected in perfluoro polyether, and frozen in liquid N2. Resolution 1.06 Å R-free 0.103

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 1–182; UniProt 2–183

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 6b8f

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6b8f
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6b8f
Deposition date deposition_date2017-10-07
Structure title titleContracted Human Heavy-Chain Ferritin Crystal-Hydrogel Hybrid
Keywords keywordsOxidoreductase, Hydrogel, Polymer; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.96
Radius of gyration Rg (electron density) rg_electron18.26
Forward intensity I(0) i08172920.00
Molecular weight molecular_weight20413.0 kDa
Excluded volume excluded_volume25188 ų
Envelope volume envelope_volume29283 ų
Hydration-shell volume shell_volume14421 ų
Envelope diameter envelope_diameter66.8
Shell Rg shell_rg23.15
Envelope Rg envelope_rg18.63
Shape Rg shape_rg18.20
Total Rg total_rg19.22
Total atoms total_atoms2752
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 dmax65.7
Rg (real space) rg_real19.08
Rg uncertainty (real space) rg_real_error0.54
I(0) (real space) i0_real8.1730e+06
I(0) uncertainty (real space) i0_real_error1.0650e+05
Rg (reciprocal space) rg_reciprocal19.06
I(0) (reciprocal space) i0_reciprocal8173000.0000
Solution quality estimate total_estimate0.7600
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary19.2
Skewness Skewness skewness0.533
Kurtosis Kurtosis kurtosis-0.200
Angular range angular_range— – 0.4200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2107000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.683; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.827; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd6b8fa_
Class classa — All alpha proteins
Fold Fold folda.25 — Ferritin-like
Superfamily Superfamily superfamilya.25.1 — Ferritin-like
Family Family familya.25.1.1 — Ferritin

CATH v4.4 (1 domains)

Domain ID domain_id6b8fA00
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)