9e2f

Cryo-EM structure of a di-nucleosome with a five base pair linker

Method: ELECTRON MICROSCOPY Dmax: 193.0 Å Quality: GOOD

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

Histone H3.2

Homo sapiens

UniProt Q71DI3

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 × 16 DNA 2 PDB declaration: 18-meric(18) Consistent with all polymer counts Chain A; UniProt 2–136 Chain E; UniProt 2–136 Chain M; UniProt 2–136 Chain Q; UniProt 2–136 Not recorded Histone H4 × 4 (P62805) Histone H2A × 4 Histone H2B × 4 DNA (318-MER) × 1 DNA (318-MER) × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 5.90 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.

139 other PDB entries and 157 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name H32_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–135; UniProt 2–136 Author chain E; PDBConstruct 1–135; UniProt 2–136 Author chain M; PDBConstruct 1–135; UniProt 2–136 Author chain Q; PDBConstruct 1–135; UniProt 2–136

Histone H4

Homo sapiens

UniProt P62805

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 × 16 DNA 2 PDB declaration: 18-meric(18) Consistent with all polymer counts Chain B; UniProt 1–103 Chain F; UniProt 1–103 Chain N; UniProt 1–103 Chain R; UniProt 1–103 Not recorded Histone H3.2 × 4 (Q71DI3) Histone H2A × 4 Histone H2B × 4 DNA (318-MER) × 1 DNA (318-MER) × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 5.90 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.

581 other PDB entries and 633 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name H4_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–103; UniProt 1–103 Author chain F; PDBConstruct 1–103; UniProt 1–103 Author chain N; PDBConstruct 1–103; UniProt 1–103 Author chain R; PDBConstruct 1–103; UniProt 1–103

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 9e2f

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9e2f
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9e2f
Deposition date deposition_date2024-10-22
Structure title titleCryo-EM structure of a di-nucleosome with a five base pair linker
Keywords keywordsDNMT3A, DNMT3B, nucleosome, DNA methylation, DNA BINDING PROTEIN, DNA BINDING PROTEIN-DNA complex; DNA BINDING PROTEIN/DNA
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier57.04
Radius of gyration Rg (electron density) rg_electron55.37
Forward intensity I(0) i03498050000.00
Molecular weight molecular_weight361630.0 kDa
Excluded volume excluded_volume397030 ų
Envelope volume envelope_volume695540 ų
Hydration-shell volume shell_volume104290 ų
Envelope diameter envelope_diameter183.7
Shell Rg shell_rg59.74
Envelope Rg envelope_rg53.00
Shape Rg shape_rg55.27
Total Rg total_rg55.70
Total atoms total_atoms24620
Residues n_residues2095
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 dmax193.0
Rg (real space) rg_real56.94
Rg uncertainty (real space) rg_real_error1.96
I(0) (real space) i0_real3.4980e+09
I(0) uncertainty (real space) i0_real_error8.0300e+07
Rg (reciprocal space) rg_reciprocal57.10
I(0) (reciprocal space) i0_reciprocal3499000000.0000
Solution quality estimate total_estimate0.8726
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary75.8
Skewness Skewness skewness0.270
Kurtosis Kurtosis kurtosis-0.414
Angular range angular_range— – 0.1400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha373800000.0000
Real-space data points n_real_points29
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.834; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.843

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)