3FYX image
Deposition Date 2009-01-23
Release Date 2009-06-30
Last Version Date 2024-11-20
Entry Detail
PDB ID:
3FYX
Keywords:
TRANSPORT PROTEIN
Title:
The Structure of OmpF porin with a synthetic dibenzo-18-crown-6 as modulator
Biological Source:
Source Organism:
Escherichia coli K12 (Taxon ID: 83333)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
3.40 Å
R-Value Free:
0.29
R-Value Work:
0.24
R-Value Observed:
0.25
Space Group:
P 3 2 1
3FYX validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Outer membrane protein F
Gene (Uniprot):ompF
Mutations:K16C
Chain IDs:A
Chain Length:340
Number of Molecules:1
Biological Source:Escherichia coli K12
UniProt ID:P02931 Pfam ID:PF00267
Ligand Molecules
451
EPE
Primary Citation
On the function and structure of synthetically modified porins.
Angew.Chem.Int.Ed.Engl. 48 4853 4857 (2009)
PMID: 19322865 DOI: 10.1002/anie.200900457

Abstact

The attachment of modulators to a trimeric porin ion channel was investigated (see picture of the trimer with a crown ether modulator (orange)). The interplay of modulator and protein is essential for the conformational heterogeneity of the hybrid channel. Single-site attachment in large pores is not sufficient to change the electrophysiological characteristics of the pores-such change requires additional noncovalent interactions or second-site attachments.

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Protein

Chemical

Disease

Primary Citation of related structures
3FYX