9kq0

Structure of TolQRA complex at pH 8.0 from E.coli

Method: ELECTRON MICROSCOPY Dmax: 110.4 Å Quality: GOOD

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

Tol-Pal system protein TolQ

Escherichia coli K-12

UniProt P0ABU9

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Heteromer Protein × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain A; UniProt 2–230 Chain B; UniProt 2–230 Chain C; UniProt 2–230 Chain D; UniProt 2–230 Chain E; UniProt 2–230 Not recorded Tol-Pal system protein TolR × 2 (P0ABV6) Ubiquitin-like protein SMT3,Tol-Pal system protein TolA × 5 (Q12306,P19934) ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.60 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.

7 other PDB entries and 7 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TOLQ_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 4–232; UniProt 2–230 Author chain B; PDBConstruct 4–232; UniProt 2–230 Author chain C; PDBConstruct 4–232; UniProt 2–230 Author chain D; PDBConstruct 4–232; UniProt 2–230 Author chain E; PDBConstruct 4–232; UniProt 2–230

Tol-Pal system protein TolR

Escherichia coli K-12

UniProt P0ABV6

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Heteromer Protein × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain F; UniProt 1–142 Chain G; UniProt 1–142 Not recorded Tol-Pal system protein TolQ × 5 (P0ABU9) Ubiquitin-like protein SMT3,Tol-Pal system protein TolA × 5 (Q12306,P19934) ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.60 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.

8 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TOLR_ECOLI
Isoform
PDB entities 2
Chains and sequence ranges Author chain F; PDBConstruct 1–142; UniProt 1–142 Author chain G; PDBConstruct 1–142; UniProt 1–142

Ubiquitin-like protein SMT3,Tol-Pal system protein TolA

Escherichia coli K-12

UniProt P19934

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Heteromer Protein × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain H; UniProt 2–421 Chain I; UniProt 2–421 Chain J; UniProt 2–421 Chain K; UniProt 2–421 Chain L; UniProt 2–421 Not recorded Tol-Pal system protein TolQ × 5 (P0ABU9) Tol-Pal system protein TolR × 2 (P0ABV6) ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.60 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.

11 other PDB entries and 11 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TOLA_ECOLI
Isoform
PDB entities 3
Chains and sequence ranges Author chain H; PDBConstruct 138–557; UniProt 2–421 Author chain I; PDBConstruct 138–557; UniProt 2–421 Author chain J; PDBConstruct 138–557; UniProt 2–421 Author chain K; PDBConstruct 138–557; UniProt 2–421 Author chain L; PDBConstruct 138–557; UniProt 2–421

Ubiquitin-like protein SMT3,Tol-Pal system protein TolA

Escherichia coli K-12

UniProt Q12306

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Heteromer Protein × 12 PDB declaration: dodecameric(12) Consistent with protein copy count Chain H; UniProt 3–99 Chain I; UniProt 3–99 Chain J; UniProt 3–99 Chain K; UniProt 3–99 Chain L; UniProt 3–99 Not recorded Tol-Pal system protein TolQ × 5 (P0ABU9) Tol-Pal system protein TolR × 2 (P0ABV6) ELECTRON MICROSCOPY cryo-EM buffer:pH 8 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.60 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.

95 other PDB entries and 116 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SMT3_YEAST
Isoform
PDB entities 3
Chains and sequence ranges Author chain H; PDBConstruct 15–111; UniProt 3–99 Author chain I; PDBConstruct 15–111; UniProt 3–99 Author chain J; PDBConstruct 15–111; UniProt 3–99 Author chain K; PDBConstruct 15–111; UniProt 3–99 Author chain L; PDBConstruct 15–111; UniProt 3–99

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 9kq0

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9kq0
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9kq0
Deposition date deposition_date2024-11-24
Structure title titleStructure of TolQRA complex at pH 8.0 from E.coli
Keywords keywordsTolQRA, TolQ, TolR, TolA, Tol-Pal complex, Proton motive force, proton transporter, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier35.61
Radius of gyration Rg (electron density) rg_electron34.84
Forward intensity I(0) i0277481000.00
Molecular weight molecular_weight142420.0 kDa
Excluded volume excluded_volume182080 ų
Envelope volume envelope_volume247420 ų
Hydration-shell volume shell_volume57776 ų
Envelope diameter envelope_diameter118.8
Shell Rg shell_rg42.69
Envelope Rg envelope_rg34.07
Shape Rg shape_rg34.83
Total Rg total_rg35.47
Total atoms total_atoms10048
Residues n_residues1289
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 dmax110.4
Rg (real space) rg_real35.45
Rg uncertainty (real space) rg_real_error0.82
I(0) (real space) i0_real2.7750e+08
I(0) uncertainty (real space) i0_real_error4.0930e+06
Rg (reciprocal space) rg_reciprocal35.55
I(0) (reciprocal space) i0_reciprocal277500000.0000
Solution quality estimate total_estimate0.8983
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary42.7
Skewness Skewness skewness0.194
Kurtosis Kurtosis kurtosis-0.456
Angular range angular_range— – 0.2200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha41930000.0000
Real-space data points n_real_points45
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.921; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.927

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)