8qmo

Cryo-EM structure of the benzo[a]pyrene-bound Hsp90-XAP2-AHR complex

Method: ELECTRON MICROSCOPY Dmax: 146.1 Å Quality: GOOD

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

Heat shock protein HSP 90-beta

Homo sapiens

UniProt P08238

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 2–724 Chain B; UniProt 2–724 Not recorded AH receptor-interacting protein × 1 (O00170) Aryl hydrocarbon receptor × 1 (P35869) MOO MOLYBDATE ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 W62 benzo[a]pyrene × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.76 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.

29 other PDB entries and 50 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HS90B_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 8–730; UniProt 2–724 Author chain B; PDBConstruct 8–730; UniProt 2–724

AH receptor-interacting protein

Homo sapiens

UniProt O00170

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain C; UniProt 1–330 Not recorded Heat shock protein HSP 90-beta × 2 (P08238) Aryl hydrocarbon receptor × 1 (P35869) MOO MOLYBDATE ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 W62 benzo[a]pyrene × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.76 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.

4 other PDB entries and 6 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name AIP_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 1–330; UniProt 1–330

Aryl hydrocarbon receptor

Homo sapiens

UniProt P35869

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain D; UniProt 2–437 Not recorded Heat shock protein HSP 90-beta × 2 (P08238) AH receptor-interacting protein × 1 (O00170) MOO MOLYBDATE ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 2 MG MAGNESIUM ION × 2 W62 benzo[a]pyrene × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.76 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.

2 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name AHR_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain D; PDBConstruct 4–439; UniProt 2–437

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 8qmo

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8qmo
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8qmo
Deposition date deposition_date2023-09-24
Structure title titleCryo-EM structure of the benzo[a]pyrene-bound Hsp90-XAP2-AHR complex
Keywords keywordsdetoxification, chemical pollutants, exposome, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier43.97
Radius of gyration Rg (electron density) rg_electron43.51
Forward intensity I(0) i0584782000.00
Molecular weight molecular_weight199350.0 kDa
Excluded volume excluded_volume249980 ų
Envelope volume envelope_volume352660 ų
Hydration-shell volume shell_volume68460 ų
Envelope diameter envelope_diameter155.8
Shell Rg shell_rg47.60
Envelope Rg envelope_rg42.81
Shape Rg shape_rg43.52
Total Rg total_rg43.69
Total atoms total_atoms26868
Residues n_residues1721
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 dmax146.1
Rg (real space) rg_real43.98
Rg uncertainty (real space) rg_real_error1.33
I(0) (real space) i0_real5.8480e+08
I(0) uncertainty (real space) i0_real_error1.1030e+07
Rg (reciprocal space) rg_reciprocal43.97
I(0) (reciprocal space) i0_reciprocal584800000.0000
Solution quality estimate total_estimate0.8809
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary48.7
Skewness Skewness skewness0.333
Kurtosis Kurtosis kurtosis-0.428
Angular range angular_range— – 0.1800 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha49180000.0000
Real-space data points n_real_points37
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.877; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.820

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

8. Citations (1)

9. Files and Curves (10)