7RXU

Crystal structure of Cj1090c

• PDB DOI: https://doi.org/10.2210/pdb7RXU/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Campylobacter jejuni
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2021-08-23 Released: 2022-08-31 
• Deposition Author(s): Kim, Y., Yeo, H.J.
• Funding Organization(s): Robert A. Welch Foundation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.237 
• R-Value Work: 0.199 
• R-Value Observed: 0.201 

Literature

Crystal structure of Campylobacter jejuni lipoprotein Cj1090c.

Paek, S., Kawai, F., Venisetty, N., Kim, Y., Yeo, H.J.

(2023) Proteins 91: 293-299

• PubMed: 36201627 
• DOI: https://doi.org/10.1002/prot.26434
• Primary Citation of Related Structures:  
  7RXU


• PubMed Abstract: 
  

  In Gram-negative bacteria, lipopolysaccharide (LPS) is an essential component of the asymmetric outer membrane (OM). LptE is an OM lipoprotein that forms a complex with the β-barrel OM protein, LptD. Incorporation of LPS into the OM outer leaflet is essential for bacterial viability, and mediated by the LptD/E complex. The genome of Campylobacter jejuni, a major foodborne pathogen, contains over 20 putative lipoproteins including Cj1090c. Here, we report the crystal structure of Cj1090c at 2.4 Å resolution, revealing structural evidence for LptE in C. jejuni. The analysis of this crystal structure, along with the genomic context, allows us to propose the C. jejuni LPS transport system for the first time, and permits for discussion of the features of the LptD/E complex of C. jejuni.

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Organizational Affiliation: 

Department of Biology and Biochemistry, University of Houston, Houston, Texas, United States.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 17.53 kDa 
• Atom Count: 1,078 
• Modelled Residue Count: 134 
• Deposited Residue Count: 155 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lipoprotein	A	155	Campylobacter jejuni	Mutation(s): 0  Gene Names:  A4277_01250, A7M07_00410, A8118_01785, A8M99_00395, A9M03_02130, AZ817_04255, B5660_02510, B5946_02175, BBJ87_05465, BFD99_07545, BM409_03070, BWN12_01085, BZN49_00430, C1418_01685, C5M81_04330, CAZ42_00395, CBW88_01330, CUT57_04850, CXE90_00065, D6H09_01620, DCB46_00240, DDV78_00275, DW573_04295, E5G70_01890, E7M04_02545, E7P31_00425, E8P01_00425, F0N28_01095, F1L44_00395, F1P05_04495, F1P94_03815, F3658_01355, F6069_04745, F6306_03525, F7843_04325, F7J55_02570, F7N67_01205, FM724_02000, FMI86_00510, FNW64_00425, FV854_00505, FW006_01825, FW073_02350, FW865_04530, FZ832_03995, FZ903_02320, GAU91_00760, GC764_01595, GHZ28_01110, GIF20_01850, GJO28_03750, GOY41_00395, GPY90_00420, GQ237_00185, GQV25_05720, GWF31_00500, GZ515_000638, GZ802_000127, YP14_03280
UniProt
Find proteins for A0A1E7P3T3 (Campylobacter jejuni) Explore A0A1E7P3T3  Go to UniProtKB:  A0A1E7P3T3

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	B [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
EDO	C [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.237 
• R-Value Work: 0.199 
• R-Value Observed: 0.201 
• Space Group: P 6₂ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.071	α = 90
b = 89.071	β = 90
c = 118.22	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
SOLVE	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-08-31 
Deposition Author(s): Kim, Y., Yeo, H.J.

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Funding Organization	Location	Grant Number
Robert A. Welch Foundation	United States	E-1616

Revision History  

• Version 1.0: 2022-08-31
  Type: Initial release
  
• Version 1.1: 2023-03-22
  Changes: Database references
• Version 1.2: 2024-05-22
  Changes: Data collection