9geo

Nucleosome core particle

Method: ELECTRON MICROSCOPY Dmax: 115.3 Å Quality: GOOD

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

Histone H3.2

Xenopus laevis

UniProt P84233

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–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain A; UniProt 38–136 Chain E; UniProt 38–136 Not recorded Histone H4 × 2 (P62799) Histone H2A type 1 × 2 (P06897) Histone H2B 1.1 × 2 (P02281) Widom-601 DNA (145-MER) × 1 Widom-601 DNA (145-MER) × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.79 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.

230 other PDB entries and 239 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name H32_XENLA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–99; UniProt 38–136 Author chain E; PDBConstruct 1–99; UniProt 38–136

Histone H4

Xenopus laevis

UniProt P62799

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–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain B; UniProt 17–103 Chain F; UniProt 17–103 Not recorded Histone H3.2 × 2 (P84233) Histone H2A type 1 × 2 (P06897) Histone H2B 1.1 × 2 (P02281) Widom-601 DNA (145-MER) × 1 Widom-601 DNA (145-MER) × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.79 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.

354 other PDB entries and 370 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name H4_XENLA
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–87; UniProt 17–103 Author chain F; PDBConstruct 1–87; UniProt 17–103

Histone H2A type 1

Xenopus laevis

UniProt P06897

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–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain C; UniProt 11–121 Chain G; UniProt 11–121 Not recorded Histone H3.2 × 2 (P84233) Histone H4 × 2 (P62799) Histone H2B 1.1 × 2 (P02281) Widom-601 DNA (145-MER) × 1 Widom-601 DNA (145-MER) × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.79 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.

136 other PDB entries and 144 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name H2A1_XENLA
Isoform
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–111; UniProt 11–121 Author chain G; PDBConstruct 1–111; UniProt 11–121

Histone H2B 1.1

Xenopus laevis

UniProt P02281

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–DNA Heteromer Protein × 8 DNA 2 PDB declaration: decameric(10) Consistent with all polymer counts Chain D; UniProt 30–125 Chain H; UniProt 30–125 Not recorded Histone H3.2 × 2 (P84233) Histone H4 × 2 (P62799) Histone H2A type 1 × 2 (P06897) Widom-601 DNA (145-MER) × 1 Widom-601 DNA (145-MER) × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.79 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.

310 other PDB entries and 327 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name H2B11_XENLA
Isoform
PDB entities 4
Chains and sequence ranges Author chain D; PDBConstruct 1–96; UniProt 30–125 Author chain H; PDBConstruct 1–96; UniProt 30–125

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 9geo

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9geo
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9geo
Deposition date deposition_date2024-08-07
Structure title titleNucleosome core particle
Keywords keywordsHistone, acidic patch, NUCLEAR PROTEIN; NUCLEAR PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier40.11
Radius of gyration Rg (electron density) rg_electron37.39
Forward intensity I(0) i0827719000.00
Molecular weight molecular_weight175140.0 kDa
Excluded volume excluded_volume194050 ų
Envelope volume envelope_volume288150 ų
Hydration-shell volume shell_volume62649 ų
Envelope diameter envelope_diameter117.7
Shell Rg shell_rg44.98
Envelope Rg envelope_rg36.77
Shape Rg shape_rg37.22
Total Rg total_rg38.11
Total atoms total_atoms11947
Residues n_residues1046
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 dmax115.3
Rg (real space) rg_real39.92
Rg uncertainty (real space) rg_real_error0.74
I(0) (real space) i0_real8.2770e+08
I(0) uncertainty (real space) i0_real_error1.2450e+07
Rg (reciprocal space) rg_reciprocal40.10
I(0) (reciprocal space) i0_reciprocal827900000.0000
Solution quality estimate total_estimate0.8788
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary47.3
Skewness Skewness skewness0.076
Kurtosis Kurtosis kurtosis-0.705
Angular range angular_range— – 0.1950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha61250000.0000
Real-space data points n_real_points40
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.990; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.986; Smooth: 0.463

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

8. Citations (1)

9. Files and Curves (10)