9x7s

sheathed filament of the spirochete periplasmic flagella of Leptospira biflexa from the flaA2-complemented stain

Method: ELECTRON MICROSCOPY Dmax: 250.3 Å Quality: GOOD

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

Flagellin

OrganismNot specified

UniProt B0SQZ5

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 × 24 PDB declaration: 24-meric(24) Consistent with protein copy count Chain A; UniProt 1–282 Chain D; UniProt 1–282 Chain G; UniProt 1–282 Chain J; UniProt 1–282 Chain M; UniProt 1–282 Chain P; UniProt 1–282 Chain S; UniProt 1–282 Chain V; UniProt 1–282 Chain Y; UniProt 1–282 Chain b; UniProt 1–282 Chain e; UniProt 1–282 Not recorded Bacterial flagellar sheath protein × 7 (B0STJ8) Bacterial flagellar sheath protein × 6 (B0SR03) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.83 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 2 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name B0SQZ5_LEPBP
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–282; UniProt 1–282 Author chain D; PDBConstruct 1–282; UniProt 1–282 Author chain G; PDBConstruct 1–282; UniProt 1–282 Author chain J; PDBConstruct 1–282; UniProt 1–282 Author chain M; PDBConstruct 1–282; UniProt 1–282 Author chain P; PDBConstruct 1–282; UniProt 1–282 Author chain S; PDBConstruct 1–282; UniProt 1–282 Author chain V; PDBConstruct 1–282; UniProt 1–282 Author chain Y; PDBConstruct 1–282; UniProt 1–282 Author chain b; PDBConstruct 1–282; UniProt 1–282 Author chain e; PDBConstruct 1–282; UniProt 1–282

Bacterial flagellar sheath protein

OrganismNot specified

UniProt B0STJ8

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 × 24 PDB declaration: 24-meric(24) Consistent with protein copy count Chain B; UniProt 1–300 Chain K; UniProt 1–300 Chain N; UniProt 1–300 Chain Q; UniProt 1–300 Chain Z; UniProt 1–300 Chain c; UniProt 1–300 Chain f; UniProt 1–300 Not recorded Flagellin × 11 (B0SQZ5) Bacterial flagellar sheath protein × 6 (B0SR03) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.83 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.

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

View Construct and Data Evidence
UniProt name B0STJ8_LEPBP
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–300; UniProt 1–300 Author chain K; PDBConstruct 1–300; UniProt 1–300 Author chain N; PDBConstruct 1–300; UniProt 1–300 Author chain Q; PDBConstruct 1–300; UniProt 1–300 Author chain Z; PDBConstruct 1–300; UniProt 1–300 Author chain c; PDBConstruct 1–300; UniProt 1–300 Author chain f; PDBConstruct 1–300; UniProt 1–300

Bacterial flagellar sheath protein

OrganismNot specified

UniProt B0SR03

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 × 24 PDB declaration: 24-meric(24) Consistent with protein copy count Chain L; UniProt 1–277 Chain O; UniProt 1–277 Chain R; UniProt 1–277 Chain a; UniProt 1–277 Chain d; UniProt 1–277 Chain g; UniProt 1–277 Not recorded Flagellin × 11 (B0SQZ5) Bacterial flagellar sheath protein × 7 (B0STJ8) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.83 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.

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

View Construct and Data Evidence
UniProt name B0SR03_LEPBP
Isoform
PDB entities 3
Chains and sequence ranges Author chain L; PDBConstruct 1–277; UniProt 1–277 Author chain O; PDBConstruct 1–277; UniProt 1–277 Author chain R; PDBConstruct 1–277; UniProt 1–277 Author chain a; PDBConstruct 1–277; UniProt 1–277 Author chain d; PDBConstruct 1–277; UniProt 1–277 Author chain g; PDBConstruct 1–277; UniProt 1–277

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 9x7s

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9x7s
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9x7s
Deposition date deposition_date2025-10-17
Structure title titlesheathed filament of the spirochete periplasmic flagella of Leptospira biflexa from the flaA2-complemented stain
Keywords keywordsFilament, Flagellar motor, MOTOR PROTEIN; MOTOR PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier76.93
Radius of gyration Rg (electron density) rg_electron76.82
Forward intensity I(0) i07410790000.00
Molecular weight molecular_weight715470.0 kDa
Excluded volume excluded_volume890320 ų
Envelope volume envelope_volume1802800 ų
Hydration-shell volume shell_volume193070 ų
Envelope diameter envelope_diameter239.1
Shell Rg shell_rg81.37
Envelope Rg envelope_rg71.73
Shape Rg shape_rg76.84
Total Rg total_rg76.83
Total atoms total_atoms50274
Residues n_residues6218
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 dmax250.3
Rg (real space) rg_real76.57
Rg uncertainty (real space) rg_real_error2.31
I(0) (real space) i0_real7.4110e+09
I(0) uncertainty (real space) i0_real_error1.8570e+08
Rg (reciprocal space) rg_reciprocal78.01
I(0) (reciprocal space) i0_reciprocal7432000000.0000
Solution quality estimate total_estimate0.8496
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary100.1
Skewness Skewness skewness0.010
Kurtosis Kurtosis kurtosis-0.633
Angular range angular_range— – 0.1000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha612500000.0000
Real-space data points n_real_points21
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.865; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.941; Smooth: 0.505

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)