2OMF

OMPF PORIN

• PDB DOI: https://doi.org/10.2210/pdb2OMF/pdb
• Entry: 2OMF supersedes: 1OMF

• Classification: INTEGRAL MEMBRANE PROTEIN PORIN
• Organism(s): Escherichia coli K-12
• Mutation(s): No 
• Membrane Protein: Yes  PDBTMMemProtMD


• Deposited: 1995-02-28 Released: 1995-12-07 
• Deposition Author(s): Cowan, S.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Work: 0.167 
• R-Value Observed: 0.167 

Literature

The Refined Structure of Ompf Porin from E.Coli at 2.4 Angstroms Resolution

Cowan, S.W.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 40.79 kDa 
• Atom Count: 2,827 
• Modelled Residue Count: 340 
• Deposited Residue Count: 340 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MATRIX PORIN OUTER MEMBRANE PROTEIN F	A	340	Escherichia coli K-12	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P02931 (Escherichia coli (strain K12)) Explore P02931  Go to UniProtKB:  P02931

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
C8E	B [auth A], C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A]	(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE C16 H34 O5 FEOZZFHAVXYAMB-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Work: 0.167 
• R-Value Observed: 0.167 
• Space Group: P 3 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 118.5	α = 90
b = 118.5	β = 90
c = 52.7	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
MOSFLM	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-12-07 
Deposition Author(s): Cowan, S.W.
• This entry supersedes: 1OMF

Revision History  

• Version 1.0: 1995-12-07
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2024-02-21
  Changes: Data collection, Database references, Derived calculations, Other