7EH9 | pdb_00007eh9

Crystal structure of the flagellar hook cap fragment from Salmonella enterica serovar Typhimurium

• PDB DOI: https://doi.org/10.2210/pdb7EH9/pdb
• Entry: 7EH9 supersedes: 6IEF

• Classification: MOTOR PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2021-03-29 Released: 2021-11-24 
• Deposition Author(s): Matsunami, H., Yoon, Y.-H., Imada, K., Namba, K., Samatey, F.A.
• Funding Organization(s): Japan Society for the Promotion of Science (JSPS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 
  0.248 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.199 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.202 (Depositor) 

Literature

Structure of the bacterial flagellar hook cap provides insights into a hook assembly mechanism

Matsunami, H., Yoon, Y.H., Imada, K., Namba, K., Samatey, F.A.

(2021) Commun Biol 4: 1291

• DOI: https://doi.org/10.1038/s42003-021-02796-6

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 37.42 kDa 
• Atom Count: 2,084 
• Modeled Residue Count: 268 
• Deposited Residue Count: 360 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Basal-body rod modification protein FlgD	A, B	180	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Gene Names: flgD, fla FIV, flaV, STM1176
UniProt
Find proteins for P0A1I9 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P0A1I9  Go to UniProtKB:  P0A1I9

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free:  0.248 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.199 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.202 (Depositor) 

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 75.9852	α = 90
b = 104.323	β = 90
c = 43.867	γ = 90

Software Package:

Software Name	Purpose
BSS	data collection
MOSFLM	data reduction
SCALA	data scaling
PHENIX	phasing
PHENIX	refinement

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-11-24 
Deposition Author(s): Matsunami, H., Yoon, Y.-H., Imada, K., Namba, K., Samatey, F.A.
• This entry supersedes: 6IEF

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Funding Organization	Location	Grant Number
Japan Society for the Promotion of Science (JSPS)	Japan	--

Revision History  

• Version 1.0: 2021-11-24
  Type: Initial release
  
• Version 1.1: 2024-05-29
  Changes: Data collection