9hci

structure of the double Cys-substituted cross-linked AcrB variant S562C_T837C

Method: X-RAY DIFFRACTION Dmax: 146.0 Å Quality: GOOD

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

Multidrug efflux pump subunit AcrB

Escherichia coli K-12

UniProt P31224

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain A; UniProt 1–1049 Chain B; UniProt 1–1049 Chain C; UniProt 1–1049 Mutation:S562C, T837C DARPIN × 2 LMT DODECYL-BETA-D-MALTOSIDE × 8 D10 DECANE × 9 GOL GLYCEROL × 16 D12 DODECANE × 4 HEX HEXANE × 3 C14 TETRADECANE × 1 OCT N-OCTANE × 2 DD9 nonane × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;290 K;0.05M ADA, pH 6.5, 0.2M ammonium sulfate, 8% PEG4000, 5.1% Glycerol Resolution 2.60 Å R-free 0.230

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.

117 other PDB entries and 124 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ACRB_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–1049; UniProt 1–1049 Author chain B; PDBConstruct 1–1049; UniProt 1–1049 Author chain C; PDBConstruct 1–1049; UniProt 1–1049

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 9hci

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id9hci
Deposition date deposition_date2024-11-10
Structure title titlestructure of the double Cys-substituted cross-linked AcrB variant S562C_T837C
Keywords keywordsRND multidrug efflux pump, antimicrobial resistance, intermediate conformational state, crosslinked structure, TRANSPORT PROTEIN; TRANSPORT PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier47.61
Radius of gyration Rg (electron density) rg_electron47.03
Forward intensity I(0) i01833620000.00
Molecular weight molecular_weight377660.0 kDa
Excluded volume excluded_volume481430 ų
Envelope volume envelope_volume629060 ų
Hydration-shell volume shell_volume106120 ų
Envelope diameter envelope_diameter153.3
Shell Rg shell_rg55.27
Envelope Rg envelope_rg46.26
Shape Rg shape_rg47.04
Total Rg total_rg47.25
Total atoms total_atoms26546
Residues n_residues3418
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 dmax146.0
Rg (real space) rg_real47.34
Rg uncertainty (real space) rg_real_error0.85
I(0) (real space) i0_real1.8340e+09
I(0) uncertainty (real space) i0_real_error2.7830e+07
Rg (reciprocal space) rg_reciprocal47.61
I(0) (reciprocal space) i0_reciprocal1834000000.0000
Solution quality estimate total_estimate0.8702
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary61.9
Skewness Skewness skewness0.182
Kurtosis Kurtosis kurtosis-0.419
Angular range angular_range— – 0.1650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha335200000.0000
Real-space data points n_real_points34
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.927; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.966; Smooth: 0.561

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (12)

8. Citations (1)

9. Files and Curves (10)