Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 17.21 kDa 
• Atom Count: 1,300 
• Modelled Residue Count: 148 
• Deposited Residue Count: 148 
• Unique protein chains: 1

 1QJ8

CRYSTAL STRUCTURE OF THE OUTER MEMBRANE PROTEIN OMPX FROM ESCHERICHIA COLI

• PDB DOI: 10.2210/pdb1QJ8/pdb

• Classification: MEMBRANE PROTEIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 
• Membrane Protein: Yes  OPMPDBTMMemProtMD


• Deposited: 1999-06-23 Released: 1999-10-10 
• Deposition Author(s): Vogt, J., Schulz, G.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.246 
• R-Value Work: 0.204 

Literature

The Structure of the Outer Membrane Protein Ompx from Escherichia Coli Reveals Mechanisms of Virulence

Vogt, J., Schulz, G.E.

(1999) Structure 7: 1301

• PubMed: 10545325 
• DOI: 10.1016/s0969-2126(00)80063-5
• Primary Citation of Related Structures:  
  1QJ8, 1QJ9


• PubMed Abstract: 
  

The integral outer membrane protein X (OmpX) from Escherichia coli belongs to a family of highly conserved bacterial proteins that promote bacterial adhesion to and entry into mammalian cells. Moreover, these proteins have a role in the resistance against attack by the human complement system. Here we present the first crystal structure of a member of this family.

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Related Citations: 

• Strategy for Membrane Protein Crystallization Exemplified with Ompa and Ompx
  Pautsch, A., Vogt, J., Model, K., Siebold, C., Schulz, G.E.
  (1999) Proteins 34: 167

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Organizational Affiliation: 

Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Albertstrasse 21, D-79104, Freiburg im Breisgau, Germany.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
OUTER MEMBRANE PROTEIN X	A	148	Escherichia coli	Mutation(s): 1  Gene Names: ompX Membrane Entity: Yes
UniProt
Find proteins for P0A917 (Escherichia coli (strain K12)) Explore P0A917  Go to UniProtKB:  P0A917

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
C8E	B [auth A]	(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE C16 H34 O5 FEOZZFHAVXYAMB-UHFFFAOYSA-N
PCL	C [auth A], D [auth A]	PLATINUM(II) DI-CHLORIDE Cl2 Pt CLSUSRZJUQMOHH-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.246 
• R-Value Work: 0.204 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.4	α = 90
b = 82.4	β = 90
c = 206.3	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
MLPHARE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-10-10 
Deposition Author(s): Vogt, J., Schulz, G.E.

Revision History  

• Version 1.0: 1999-10-10
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-07-24
  Changes: Data collection