6g3o

Crystal structure of human HDAC2 in complex with (R)-6-[3,4-Dioxo-2-(4-trifluoromethoxy-phenylamino)-cyclobut-1-enylamino]-heptanoic acid hydroxyamide

Method: X-RAY DIFFRACTION Dmax: 108.7 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 7–376 Not recorded ZN ZINC ION × 1 CA CALCIUM ION × 1 NA SODIUM ION × 1 EL8 (6~{R})-6-[[3,4-bis(oxidanylidene)-2-[[4-(trifluoromethyloxy)phenyl]amino]cyclobuten-1-yl]amino]-~{N}-oxidanyl-heptanamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.1 M TRIS, pH 9.15, 54 %(w/v) PEG 400 Resolution 2.27 Å R-free 0.219
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 7–376 Not recorded ZN ZINC ION × 1 CA CALCIUM ION × 1 NA SODIUM ION × 1 EL8 (6~{R})-6-[[3,4-bis(oxidanylidene)-2-[[4-(trifluoromethyloxy)phenyl]amino]cyclobuten-1-yl]amino]-~{N}-oxidanyl-heptanamide × 1 1PE PENTAETHYLENE GLYCOL × 1 SO4 SULFATE ION × 1 PG4 TETRAETHYLENE GLYCOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.1 M TRIS, pH 9.15, 54 %(w/v) PEG 400 Resolution 2.27 Å R-free 0.219
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 7–376 Not recorded ZN ZINC ION × 1 CA CALCIUM ION × 1 NA SODIUM ION × 1 EL8 (6~{R})-6-[[3,4-bis(oxidanylidene)-2-[[4-(trifluoromethyloxy)phenyl]amino]cyclobuten-1-yl]amino]-~{N}-oxidanyl-heptanamide × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.1 M TRIS, pH 9.15, 54 %(w/v) PEG 400 Resolution 2.27 Å R-free 0.219

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 1–370; UniProt 7–376 Author chain B; PDBConstruct 1–370; UniProt 7–376 Author chain C; PDBConstruct 1–370; UniProt 7–376

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 6g3o

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6g3o
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6g3o
Deposition date deposition_date2018-03-26
Structure title titleCrystal structure of human HDAC2 in complex with (R)-6-[3,4-Dioxo-2-(4-trifluoromethoxy-phenylamino)-cyclobut-1-enylamino]-heptanoic acid hydroxyamide
Keywords keywordsHDAC inhibitors, Squaramide, HISTONE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.69
Radius of gyration Rg (electron density) rg_electron34.14
Forward intensity I(0) i0251623000.00
Molecular weight molecular_weight127790.0 kDa
Excluded volume excluded_volume159380 ų
Envelope volume envelope_volume192330 ų
Hydration-shell volume shell_volume46511 ų
Envelope diameter envelope_diameter111.3
Shell Rg shell_rg41.00
Envelope Rg envelope_rg34.07
Shape Rg shape_rg34.15
Total Rg total_rg34.56
Total atoms total_atoms8963
Residues n_residues1101
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 dmax108.7
Rg (real space) rg_real34.58
Rg uncertainty (real space) rg_real_error0.70
I(0) (real space) i0_real2.5160e+08
I(0) uncertainty (real space) i0_real_error4.3920e+06
Rg (reciprocal space) rg_reciprocal34.65
I(0) (reciprocal space) i0_reciprocal251600000.0000
Solution quality estimate total_estimate0.9081
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary37.8
Skewness Skewness skewness0.140
Kurtosis Kurtosis kurtosis-0.707
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha85430000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.949; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.955

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (9)

7. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id6g3oA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology800 — Arginase; Chain A
Homologous superfamily homologous superfamily20 — Histone deacetylase domain
Domain ID domain_id6g3oB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology800 — Arginase; Chain A
Homologous superfamily homologous superfamily20 — Histone deacetylase domain
Domain ID domain_id6g3oC00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology800 — Arginase; Chain A
Homologous superfamily homologous superfamily20 — Histone deacetylase domain

8. Citations (1)

9. Files and Curves (10)