4R1I

Structure and Function of Neisseria gonorrhoeae MtrF Illuminates a Class of Antimetabolite Efflux Pumps


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.96 Å
  • R-Value Free: 0.338 
  • R-Value Work: 0.311 
  • R-Value Observed: 0.312 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure and Function of Neisseria gonorrhoeae MtrF Illuminates a Class of Antimetabolite Efflux Pumps.

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

(2015) Cell Rep 11: 61-70

  • DOI: 10.1016/j.celrep.2015.03.003
  • Primary Citation of Related Structures:  
    4R1I

  • PubMed Abstract: 
  • Neisseria gonorrhoeae is an obligate human pathogen and the causative agent of the sexually transmitted disease gonorrhea. The control of this disease has been compromised by the increasing proportion of infections due to antibiotic-resistant strains ...

    Neisseria gonorrhoeae is an obligate human pathogen and the causative agent of the sexually transmitted disease gonorrhea. The control of this disease has been compromised by the increasing proportion of infections due to antibiotic-resistant strains, which are growing at an alarming rate. N. gonorrhoeae MtrF is an integral membrane protein that belongs to the AbgT family of transporters for which no structural information is available. Here, we describe the crystal structure of MtrF, revealing a dimeric molecule with architecture distinct from all other families of transporters. MtrF is a bowl-shaped dimer with a solvent-filled basin extending from the cytoplasm to halfway across the membrane bilayer. Each subunit of the transporter contains nine transmembrane helices and two hairpins, posing a plausible pathway for substrate transport. A combination of the crystal structure and biochemical functional assays suggests that MtrF is an antibiotic efflux pump mediating bacterial resistance to sulfonamide antimetabolite drugs.


    Organizational Affiliation

    Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA; Department of Chemistry, Iowa State University, Ames, IA 50011, USA. Electronic address: ewyu@iastate.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Aminobenzoyl-glutamate transporterAB522Neisseria gonorrhoeae FA19Mutation(s): 0 
Gene Names: NGEG_01484
Find proteins for Q9RNX2 (Neisseria gonorrhoeae)
Explore Q9RNX2 
Go to UniProtKB:  Q9RNX2
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.96 Å
  • R-Value Free: 0.338 
  • R-Value Work: 0.311 
  • R-Value Observed: 0.312 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 120.766α = 90
b = 120.766β = 90
c = 233.897γ = 120
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
MLPHAREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-04-08
    Type: Initial release
  • Version 1.1: 2015-04-29
    Changes: Database references