7k02

The crystal structure of a BAK dimer activated by detergent

Method: X-RAY DIFFRACTION Dmax: 111.2 Å Quality: REASONABLE

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

Bcl-2 homologous antagonist/killer

Homo sapiens

UniProt Q16611

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 67–186 Chain B; UniProt 67–186 Mutation:C166S No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 7;291 K;50% (v/v) methane pentane diol (MPD) and 0.1 M imidazole pH 7.0 Resolution 3.40 Å R-free 0.343
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 67–186 Chain D; UniProt 67–186 Mutation:C166S No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 7;291 K;50% (v/v) methane pentane diol (MPD) and 0.1 M imidazole pH 7.0 Resolution 3.40 Å R-free 0.343
3 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 67–186 Chain F; UniProt 67–186 Mutation:C166S No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 7;291 K;50% (v/v) methane pentane diol (MPD) and 0.1 M imidazole pH 7.0 Resolution 3.40 Å R-free 0.343

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.

53 other PDB entries and 101 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BAK_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–122; UniProt 67–186 Author chain B; PDBConstruct 3–122; UniProt 67–186 Author chain C; PDBConstruct 3–122; UniProt 67–186 Author chain D; PDBConstruct 3–122; UniProt 67–186 Author chain E; PDBConstruct 3–122; UniProt 67–186 Author chain F; PDBConstruct 3–122; UniProt 67–186

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 7k02

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7k02
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id7k02
Deposition date deposition_date2020-09-02
Structure title titleThe crystal structure of a BAK dimer activated by detergent
Keywords keywordsBAK, BH3-in-groove dimer, BCL-2 fold, pore forming, proapoptotic, APOPTOSIS; APOPTOSIS
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier42.37
Radius of gyration Rg (electron density) rg_electron43.72
Forward intensity I(0) i082347900.00
Molecular weight molecular_weight73783.0 kDa
Excluded volume excluded_volume92714 ų
Envelope volume envelope_volume139310 ų
Hydration-shell volume shell_volume32710 ų
Envelope diameter envelope_diameter205.4
Shell Rg shell_rg38.56
Envelope Rg envelope_rg44.51
Shape Rg shape_rg43.73
Total Rg total_rg43.36
Total atoms total_atoms5225
Residues n_residues651
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 dmax111.2
Rg (real space) rg_real38.36
Rg uncertainty (real space) rg_real_error0.39
I(0) (real space) i0_real7.8070e+07
I(0) uncertainty (real space) i0_real_error1.2290e+06
Rg (reciprocal space) rg_reciprocal42.38
I(0) (reciprocal space) i0_reciprocal82250000.0000
Solution quality estimate total_estimate0.6754
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary36.1
Skewness Skewness skewness0.435
Kurtosis Kurtosis kurtosis-0.589
Angular range angular_range— – 0.1850 −1
Current regularization parameter α current_alpha0.8223
Highest regularization parameter α highest_alpha4233000.0000
Real-space data points n_real_points38
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.008; Oscil: 0.979; Stabil: 0.987; Sysdev: 0.000; Positv: 1.000; Valcen: 0.888; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id7k02A01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology437 — Apoptosis Regulator Bcl-x
Homologous superfamily homologous superfamily10 — Blc2-like
Domain ID domain_id7k02B01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology437 — Apoptosis Regulator Bcl-x
Homologous superfamily homologous superfamily10 — Blc2-like
Domain ID domain_id7k02C01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology437 — Apoptosis Regulator Bcl-x
Homologous superfamily homologous superfamily10 — Blc2-like
Domain ID domain_id7k02D01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology437 — Apoptosis Regulator Bcl-x
Homologous superfamily homologous superfamily10 — Blc2-like
Domain ID domain_id7k02E01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology437 — Apoptosis Regulator Bcl-x
Homologous superfamily homologous superfamily10 — Blc2-like
Domain ID domain_id7k02F01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology437 — Apoptosis Regulator Bcl-x
Homologous superfamily homologous superfamily10 — Blc2-like

8. Citations (1)

9. Files and Curves (10)