9ntb

Crystal structure of human HDAC2 in complex with TNG260

Method: X-RAY DIFFRACTION Dmax: 108.6 Å Quality: EXCELLENT

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

Histone deacetylase 2

Homo sapiens

UniProt Q92769

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–404 Not recorded A1B1V (R)-N-(4-amino-4'-fluoro-[1,1'-biphenyl]-3-yl)-4-(S-methylsulfonimidoyl)benzamide × 1 ZN ZINC ION × 1 CA CALCIUM ION × 2 NHE 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 EDO 1,2-ETHANEDIOL × 11 PEG DI(HYDROXYETHYL)ETHER × 4 PGE TRIETHYLENE GLYCOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 9;293 K;35% PEG 600, 100 mM CHES pH 9.0 Resolution 1.80 Å R-free 0.197
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–404 Not recorded A1B1V (R)-N-(4-amino-4'-fluoro-[1,1'-biphenyl]-3-yl)-4-(S-methylsulfonimidoyl)benzamide × 1 ZN ZINC ION × 1 CA CALCIUM ION × 2 NHE 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 EDO 1,2-ETHANEDIOL × 6 PEG DI(HYDROXYETHYL)ETHER × 5 PG4 TETRAETHYLENE GLYCOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 9;293 K;35% PEG 600, 100 mM CHES pH 9.0 Resolution 1.80 Å R-free 0.197
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 1–404 Not recorded A1B1V (R)-N-(4-amino-4'-fluoro-[1,1'-biphenyl]-3-yl)-4-(S-methylsulfonimidoyl)benzamide × 1 ZN ZINC ION × 1 CA CALCIUM ION × 2 EDO 1,2-ETHANEDIOL × 5 PGE TRIETHYLENE GLYCOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 9;293 K;35% PEG 600, 100 mM CHES pH 9.0 Resolution 1.80 Å R-free 0.197

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.

47 other PDB entries and 120 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HDAC2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–404; UniProt 1–404 Author chain B; PDBConstruct 1–404; UniProt 1–404 Author chain C; PDBConstruct 1–404; UniProt 1–404

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 9ntb

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id9ntb
Deposition date deposition_date2025-03-18
Structure title titleCrystal structure of human HDAC2 in complex with TNG260
Keywords keywordsinhibitor, zinc metalloenzyme, HDAC1, CoREST, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.75
Radius of gyration Rg (electron density) rg_electron34.26
Forward intensity I(0) i0505549000.00
Molecular weight molecular_weight122240.0 kDa
Excluded volume excluded_volume118450 ų
Envelope volume envelope_volume197700 ų
Hydration-shell volume shell_volume47457 ų
Envelope diameter envelope_diameter110.4
Shell Rg shell_rg41.21
Envelope Rg envelope_rg34.28
Shape Rg shape_rg34.27
Total Rg total_rg34.59
Total atoms total_atoms9192
Residues n_residues1102
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 dmax108.6
Rg (real space) rg_real34.65
Rg uncertainty (real space) rg_real_error0.59
I(0) (real space) i0_real5.0550e+08
I(0) uncertainty (real space) i0_real_error7.6650e+06
Rg (reciprocal space) rg_reciprocal34.72
I(0) (reciprocal space) i0_reciprocal505600000.0000
Solution quality estimate total_estimate0.9071
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary37.8
Skewness Skewness skewness0.146
Kurtosis Kurtosis kurtosis-0.703
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha91210000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.952; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.932

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (10)

8. Citations (1)

9. Files and Curves (10)