9u7y

Structure of the tip region of the intial complex in bacterial flagellar filament assembly at 3.68 angstroms resolution, conformation 3.

Method: ELECTRON MICROSCOPY Dmax: 293.9 Å Quality: GOOD

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

Flagellar hook-associated protein 2

OrganismNot specified

UniProt P16328

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 × 60 PDB declaration: 60-meric(60) Consistent with protein copy count Chain AA; UniProt 1–467 Chain AB; UniProt 1–467 Chain AC; UniProt 1–467 Chain AD; UniProt 1–467 Chain AE; UniProt 1–467 Not recorded Flagellar hook-associated protein 3 × 11 (P16326) Flagellar hook-associated protein 1 × 11 (P0A1J5) Flagellar hook protein FlgE × 33 (P0A1J1) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.68 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 10 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name FLID_SALTY
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain AA; PDBConstruct 1–467; UniProt 1–467 Author chain AB; PDBConstruct 1–467; UniProt 1–467 Author chain AD; PDBConstruct 1–467; UniProt 1–467 Author chain AE; PDBConstruct 1–467; UniProt 1–467 Author chain AC; PDBConstruct 1–467; UniProt 1–467

Flagellar hook-associated protein 3

OrganismNot specified

UniProt P16326

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 × 60 PDB declaration: 60-meric(60) Consistent with protein copy count Chain BA; UniProt 1–317 Chain BB; UniProt 1–317 Chain BC; UniProt 1–317 Chain BD; UniProt 1–317 Chain BE; UniProt 1–317 Chain BF; UniProt 1–317 Chain BG; UniProt 1–317 Chain BH; UniProt 1–317 Chain BI; UniProt 1–317 Chain BJ; UniProt 1–317 Chain BK; UniProt 1–317 Not recorded Flagellar hook-associated protein 2 × 4 (P16328) Flagellar hook-associated protein 2 × 1 (P16328) Flagellar hook-associated protein 1 × 11 (P0A1J5) Flagellar hook protein FlgE × 33 (P0A1J1) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.68 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 FLGL_SALTY
Isoform
PDB entities 3
Chains and sequence ranges Author chain BA; PDBConstruct 1–317; UniProt 1–317 Author chain BB; PDBConstruct 1–317; UniProt 1–317 Author chain BC; PDBConstruct 1–317; UniProt 1–317 Author chain BD; PDBConstruct 1–317; UniProt 1–317 Author chain BE; PDBConstruct 1–317; UniProt 1–317 Author chain BF; PDBConstruct 1–317; UniProt 1–317 Author chain BG; PDBConstruct 1–317; UniProt 1–317 Author chain BH; PDBConstruct 1–317; UniProt 1–317 Author chain BI; PDBConstruct 1–317; UniProt 1–317 Author chain BJ; PDBConstruct 1–317; UniProt 1–317 Author chain BK; PDBConstruct 1–317; UniProt 1–317

Flagellar hook-associated protein 1

OrganismNot specified

UniProt P0A1J5

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 × 60 PDB declaration: 60-meric(60) Consistent with protein copy count Chain CA; UniProt 1–553 Chain CB; UniProt 1–553 Chain CC; UniProt 1–553 Chain CD; UniProt 1–553 Chain CE; UniProt 1–553 Chain CF; UniProt 1–553 Chain CG; UniProt 1–553 Chain CH; UniProt 1–553 Chain CI; UniProt 1–553 Chain CJ; UniProt 1–553 Chain CK; UniProt 1–553 Not recorded Flagellar hook-associated protein 2 × 4 (P16328) Flagellar hook-associated protein 2 × 1 (P16328) Flagellar hook-associated protein 3 × 11 (P16326) Flagellar hook protein FlgE × 33 (P0A1J1) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.68 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 FLGK_SALTY
Isoform
PDB entities 4
Chains and sequence ranges Author chain CA; PDBConstruct 1–553; UniProt 1–553 Author chain CB; PDBConstruct 1–553; UniProt 1–553 Author chain CC; PDBConstruct 1–553; UniProt 1–553 Author chain CD; PDBConstruct 1–553; UniProt 1–553 Author chain CE; PDBConstruct 1–553; UniProt 1–553 Author chain CF; PDBConstruct 1–553; UniProt 1–553 Author chain CG; PDBConstruct 1–553; UniProt 1–553 Author chain CH; PDBConstruct 1–553; UniProt 1–553 Author chain CI; PDBConstruct 1–553; UniProt 1–553 Author chain CJ; PDBConstruct 1–553; UniProt 1–553 Author chain CK; PDBConstruct 1–553; UniProt 1–553

Flagellar hook protein FlgE

OrganismNot specified

UniProt P0A1J1

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 × 60 PDB declaration: 60-meric(60) Consistent with protein copy count Chain DA; UniProt 1–403 Chain DB; UniProt 1–403 Chain DC; UniProt 1–403 Chain DD; UniProt 1–403 Chain DE; UniProt 1–403 Chain DF; UniProt 1–403 Chain DG; UniProt 1–403 Chain DH; UniProt 1–403 Chain DI; UniProt 1–403 Chain DJ; UniProt 1–403 Chain DK; UniProt 1–403 Chain EA; UniProt 1–403 Chain EB; UniProt 1–403 Chain EC; UniProt 1–403 Chain ED; UniProt 1–403 Chain EE; UniProt 1–403 Chain EF; UniProt 1–403 Chain EG; UniProt 1–403 Chain EH; UniProt 1–403 Chain EI; UniProt 1–403 Chain EJ; UniProt 1–403 Chain EK; UniProt 1–403 Chain FA; UniProt 1–403 Chain FB; UniProt 1–403 Chain FC; UniProt 1–403 Chain FD; UniProt 1–403 Chain FE; UniProt 1–403 Chain FF; UniProt 1–403 Chain FG; UniProt 1–403 Chain FH; UniProt 1–403 Chain FI; UniProt 1–403 Chain FJ; UniProt 1–403 Chain FK; UniProt 1–403 Not recorded Flagellar hook-associated protein 2 × 4 (P16328) Flagellar hook-associated protein 2 × 1 (P16328) Flagellar hook-associated protein 3 × 11 (P16326) Flagellar hook-associated protein 1 × 11 (P0A1J5) ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.68 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.

20 other PDB entries and 22 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name FLGE_SALTY
Isoform
PDB entities 5
Chains and sequence ranges Author chain DA; PDBConstruct 1–403; UniProt 1–403 Author chain DB; PDBConstruct 1–403; UniProt 1–403 Author chain DC; PDBConstruct 1–403; UniProt 1–403 Author chain DD; PDBConstruct 1–403; UniProt 1–403 Author chain DE; PDBConstruct 1–403; UniProt 1–403 Author chain DF; PDBConstruct 1–403; UniProt 1–403 Author chain DG; PDBConstruct 1–403; UniProt 1–403 Author chain DH; PDBConstruct 1–403; UniProt 1–403 Author chain DI; PDBConstruct 1–403; UniProt 1–403 Author chain DJ; PDBConstruct 1–403; UniProt 1–403 Author chain DK; PDBConstruct 1–403; UniProt 1–403 Author chain EA; PDBConstruct 1–403; UniProt 1–403 Author chain EB; PDBConstruct 1–403; UniProt 1–403 Author chain EC; PDBConstruct 1–403; UniProt 1–403 Author chain ED; PDBConstruct 1–403; UniProt 1–403 Author chain EE; PDBConstruct 1–403; UniProt 1–403 Author chain EF; PDBConstruct 1–403; UniProt 1–403 Author chain EG; PDBConstruct 1–403; UniProt 1–403 Author chain EH; PDBConstruct 1–403; UniProt 1–403 Author chain EI; PDBConstruct 1–403; UniProt 1–403 Author chain EJ; PDBConstruct 1–403; UniProt 1–403 Author chain EK; PDBConstruct 1–403; UniProt 1–403 Author chain FA; PDBConstruct 1–403; UniProt 1–403 Author chain FB; PDBConstruct 1–403; UniProt 1–403 Author chain FC; PDBConstruct 1–403; UniProt 1–403 Author chain FD; PDBConstruct 1–403; UniProt 1–403 Author chain FE; PDBConstruct 1–403; UniProt 1–403 Author chain FF; PDBConstruct 1–403; UniProt 1–403 Author chain FG; PDBConstruct 1–403; UniProt 1–403 Author chain FH; PDBConstruct 1–403; UniProt 1–403 Author chain FI; PDBConstruct 1–403; UniProt 1–403 Author chain FJ; PDBConstruct 1–403; UniProt 1–403 Author chain FK; PDBConstruct 1–403; UniProt 1–403

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 9u7y

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9u7y
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9u7y
Deposition date deposition_date2025-03-25
Structure title titleStructure of the tip region of the intial complex in bacterial flagellar filament assembly at 3.68 angstroms resolution, conformation 3.
Keywords keywordsflagellum, filament assembly, intial complex, fibril, PROTEIN FIBRIL; PROTEIN FIBRIL
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier
Radius of gyration Rg (electron density) rg_electron101.30
Forward intensity I(0) i0100591000000.00
Molecular weight molecular_weight2588200.0 kDa
Excluded volume excluded_volume3189500 ų
Envelope volume envelope_volume5358900 ų
Hydration-shell volume shell_volume422930 ų
Envelope diameter envelope_diameter374.1
Shell Rg shell_rg106.90
Envelope Rg envelope_rg101.60
Shape Rg shape_rg101.30
Total Rg total_rg101.40
Total atoms total_atoms181886
Residues n_residues24480
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 dmax293.9
Rg (real space) rg_real96.43
Rg uncertainty (real space) rg_real_error1.09
I(0) (real space) i0_real9.6610e+10
I(0) uncertainty (real space) i0_real_error2.0910e+09
Rg (reciprocal space) rg_reciprocal97.83
I(0) (reciprocal space) i0_reciprocal99700000000.0000
Solution quality estimate total_estimate0.8910
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary117.6
Skewness Skewness skewness0.477
Kurtosis Kurtosis kurtosis-0.137
Angular range angular_range— – 0.0750 −1
Current regularization parameter α current_alpha0.6480
Highest regularization parameter α highest_alpha28630000000.0000
Real-space data points n_real_points16
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.899; Stabil: 0.978; Sysdev: 1.000; Positv: 1.000; Valcen: 0.920; Smooth: 0.034

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)