2WVP

Synthetically modified OmpG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.221 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural and Functional Characterization of a Synthetically Modified Ompg.

Grosse, W.Reiss, P.Reitz, S.Cebi, M.Luebben, W.Koert, U.Essen, L.-O.

(2010) Bioorg.Med.Chem. 18: 7716

  • DOI: 10.1016/j.bmc.2010.03.044

  • PubMed Abstract: 
  • Chemical modification of ion channels has recently attracted attention due to their potential use in stochastic sensing and neurobiology. Among the available channel templates stable β-barrel proteins have shown their potential for large scale chemic ...

    Chemical modification of ion channels has recently attracted attention due to their potential use in stochastic sensing and neurobiology. Among the available channel templates stable β-barrel proteins have shown their potential for large scale chemical modifications due to their wide pore lumen. Ion-channel hybrids using the outer membrane protein OmpG were generated by S-alkylation with a synthetic modulator and functionally as well as structurally characterized. The dansyl moiety of the used modulator resulted in partial blockage of current though the OmpG channel with its gating characteristics mainly unaffected. The crystal structure of an OmpG-dansyl hybrid at 2.4Å resolution correlates this finding by showing that the modulator lines the inner walling of the OmpG pore. These results underline the suitability of OmpG as a structural base for the construction of stochastic sensors.


    Organizational Affiliation

    Philipps-Universität Marburg, Fachbereich Chemie, Hans-Meerwein-Straße, 35032 Marburg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
OUTER MEMBRANE PROTEIN G
A
286Escherichia coli (strain K12)Mutation(s): 1 
Gene Names: ompG
Find proteins for P76045 (Escherichia coli (strain K12))
Go to UniProtKB:  P76045
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
C8E
Query on C8E

Download SDF File 
Download CCD File 
A
(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE
C16 H34 O5
FEOZZFHAVXYAMB-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
420
Query on 420

Download SDF File 
Download CCD File 
A
N-[2-({[5-(DIMETHYLAMINO)NAPHTHALEN-1-YL]SULFONYL}AMINO)ETHYL]-2-IODOACETAMIDE
C16 H20 I N3 O3 S
QDHGMMDEGVINBU-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.221 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 99.560α = 90.00
b = 69.810β = 103.60
c = 59.130γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-07-14
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance