6bn8

Crystal structure of DDB1-CRBN-BRD4(BD1) complex bound to dBET55 PROTAC.

Method: X-RAY DIFFRACTION Dmax: 132.5 Å Quality: GOOD

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

DNA damage-binding protein 1,DNA damage-binding protein 1

Homo sapiens

UniProt Q16531

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–395 Chain A; UniProt 706–1140 Not recorded Protein cereblon × 1 (Q96SW2) Bromodomain-containing protein 4 × 1 (O60885) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;9% PEG20K, 18% PEG MME 550, 0.09M BICINE pH8.5, 9% Silver bullet G4 (0.16% w/v 3-Indolebutyric acid, 0.16% w/v Hexadecanedioic acid, 0.16% w/v Oxamic acid, 0.16% w/v Pyromellitic acid, 0.16% w/v Sebacic acid, 0.16% w/v Suberic acid, 0.02 M HEPES sodium pH 6.8) Resolution 3.99 Å R-free 0.333

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.

202 other PDB entries and 290 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DDB1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 29–423; UniProt 1–395 Author chain A; PDBConstruct 430–864; UniProt 706–1140

Protein cereblon

Homo sapiens

UniProt Q96SW2

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 1–441 Not recorded DNA damage-binding protein 1,DNA damage-binding protein 1 × 1 (Q16531) Bromodomain-containing protein 4 × 1 (O60885) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;9% PEG20K, 18% PEG MME 550, 0.09M BICINE pH8.5, 9% Silver bullet G4 (0.16% w/v 3-Indolebutyric acid, 0.16% w/v Hexadecanedioic acid, 0.16% w/v Oxamic acid, 0.16% w/v Pyromellitic acid, 0.16% w/v Sebacic acid, 0.16% w/v Suberic acid, 0.02 M HEPES sodium pH 6.8) Resolution 3.99 Å R-free 0.333

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.

93 other PDB entries and 141 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CRBN_HUMAN
Isoform Q96SW2-2
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 23–463; UniProt 1–441

Bromodomain-containing protein 4

Homo sapiens

UniProt O60885

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain C; UniProt 42–168 Mutation:T43M, D145A DNA damage-binding protein 1,DNA damage-binding protein 1 × 1 (Q16531) Protein cereblon × 1 (Q96SW2) ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;9% PEG20K, 18% PEG MME 550, 0.09M BICINE pH8.5, 9% Silver bullet G4 (0.16% w/v 3-Indolebutyric acid, 0.16% w/v Hexadecanedioic acid, 0.16% w/v Oxamic acid, 0.16% w/v Pyromellitic acid, 0.16% w/v Sebacic acid, 0.16% w/v Suberic acid, 0.02 M HEPES sodium pH 6.8) Resolution 3.99 Å R-free 0.333

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.

601 other PDB entries and 778 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BRD4_HUMAN
Isoform O60885-3
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–127; UniProt 42–168

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 6bn8

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6bn8
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6bn8
Deposition date deposition_date2017-11-16
Structure title titleCrystal structure of DDB1-CRBN-BRD4(BD1) complex bound to dBET55 PROTAC.
Keywords keywordsPROTAC, degrader, E3 ligase, CRBN, LIGASE; LIGASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier38.44
Radius of gyration Rg (electron density) rg_electron38.26
Forward intensity I(0) i0320603000.00
Molecular weight molecular_weight146460.0 kDa
Excluded volume excluded_volume183750 ų
Envelope volume envelope_volume244370 ų
Hydration-shell volume shell_volume54119 ų
Envelope diameter envelope_diameter139.6
Shell Rg shell_rg43.21
Envelope Rg envelope_rg38.52
Shape Rg shape_rg38.27
Total Rg total_rg38.55
Total atoms total_atoms10291
Residues n_residues1308
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 dmax132.5
Rg (real space) rg_real38.68
Rg uncertainty (real space) rg_real_error1.24
I(0) (real space) i0_real3.2060e+08
I(0) uncertainty (real space) i0_real_error5.9370e+06
Rg (reciprocal space) rg_reciprocal38.53
I(0) (reciprocal space) i0_reciprocal320600000.0000
Solution quality estimate total_estimate0.8426
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary42.0
Skewness Skewness skewness0.552
Kurtosis Kurtosis kurtosis-0.059
Angular range angular_range— – 0.2050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha79200000.0000
Real-space data points n_real_points42
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.764; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.973; Smooth: 0.685

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 7 domains

CATH v4.4 (7 domains)

Domain ID domain_id6bn8A01
Class class2 — Mainly Beta
Architecture architecture130 — 7 Propeller
Topology topology10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily10 — YVTN repeat-like/Quinoprotein amine dehydrogenase
Domain ID domain_id6bn8A02
Class class2 — Mainly Beta
Architecture architecture130 — 7 Propeller
Topology topology10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily10 — YVTN repeat-like/Quinoprotein amine dehydrogenase
Domain ID domain_id6bn8A03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily910
Domain ID domain_id6bn8B01
Class class2 — Mainly Beta
Architecture architecture170 — Beta Complex
Topology topology150 — Metal Binding Protein, Guanine Nucleotide Exchange Factor; Chain A
Homologous superfamily homologous superfamily20 — Peptide methionine sulfoxide reductase.
Domain ID domain_id6bn8B02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology130 — Archaeosine Trna-guanine Transglycosylase; Chain: A, domain 4
Homologous superfamily homologous superfamily40 — LON domain-like
Domain ID domain_id6bn8B03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology58 — Methane Monooxygenase Hydroxylase; Chain G, domain 1
Homologous superfamily homologous superfamily1480
Domain ID domain_id6bn8C01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like

8. Citations (1)

9. Files and Curves (10)