Biological Assembly 1  

 3D View: Structure | Electron Density

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

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

Macromolecule Content

• Total Structure Weight: 112.96 kDa 
• Atom Count: 7667 
• Modelled Residue Count: 1023 
• Deposited Residue Count: 1056 
• Unique protein chains: 1

4MT1

Crystal Structure of the Neisseria gonorrhoeae MtrD Inner Membrane Multidrug Efflux Pump

• DOI: 10.2210/pdb4MT1/pdb

• Classification: membrane protein, tranport protein
• Organism(s): Neisseria gonorrhoeae PID332
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-09-18 Released: 2014-08-06 
• Deposition Author(s): Su, C.-C., Bolla, J.R., Yu, E.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.54 Å
• R-Value Free: 0.333 
• R-Value Work: 0.280 
• R-Value Observed: 0.282 

Literature

Crystal structure of the open state of the Neisseria gonorrhoeae MtrE outer membrane channel.

Lei, H.T., Chou, T.H., Su, C.C., Bolla, J.R., Kumar, N., Radhakrishnan, A., Long, F., Delmar, J.A., Do, S.V., Rajashankar, K.R., Shafer, W.M., Yu, E.W.

(2014) PLoS One 9: e97475-e97475

• PubMed: 24901251 
• DOI: 10.1371/journal.pone.0097475
• Primary Citation of Related Structures:  
  4MT0, 4MT1


• PubMed Abstract: 
  

Active efflux of antimicrobial agents is one of the most important strategies used by bacteria to defend against antimicrobial factors present in their environment. Mediating many cases of antibiotic resistance are transmembrane efflux pumps, composed of one or more proteins. The Neisseria gonorrhoeae MtrCDE tripartite multidrug efflux pump, belonging to the hydrophobic and amphiphilic efflux resistance-nodulation-cell division (HAE-RND) family, spans both the inner and outer membranes of N. gonorrhoeae and confers resistance to a variety of antibiotics and toxic compounds. We here describe the crystal structure of N. gonorrhoeae MtrE, the outer membrane component of the MtrCDE tripartite multidrug efflux system. This trimeric MtrE channel forms a vertical tunnel extending down contiguously from the outer membrane surface to the periplasmic end, indicating that our structure of MtrE depicts an open conformational state of this channel.

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Organizational Affiliation: 

Department of Chemistry, Iowa State University, Ames, Iowa, United States of America; Department of Physics and Astronomy, Iowa State University, Ames, Iowa, United States of America; Bioinformatics and Computational Biology Interdepartmental Graduate Program, Iowa State University, Ames, Iowa, United States of America.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Drug efflux protein	A	1056	Neisseria gonorrhoeae PID332	Mutation(s): 0  Gene Names: NGJG_01522

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.54 Å
• R-Value Free: 0.333 
• R-Value Work: 0.280 
• R-Value Observed: 0.282 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 152.995	α = 90
b = 152.995	β = 90
c = 360.746	γ = 120

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
HKL-2000	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-09-18 
• Released Date: 2014-08-06 
Deposition Author(s): Su, C.-C., Bolla, J.R., Yu, E.W.

Revision History  

• Version 1.0: 2014-08-06
  Type: Initial release