Metal-bound C-terminal domain of CzcD transporter from Pseudomonas aeruginosa

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.241 

wwPDB Validation   3D Report Full Report

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Structural and functional characterizations of the C-terminal domains of CzcD proteins.

Udagedara, S.R.La Porta, D.M.Spehar, C.Purohit, G.Hein, M.J.A.Fatmous, M.E.Casas Garcia, G.P.Ganio, K.McDevitt, C.A.Maher, M.J.

(2020) J Inorg Biochem 208: 111087-111087

  • DOI: https://doi.org/10.1016/j.jinorgbio.2020.111087
  • Primary Citation of Related Structures:  
    6VD8, 6VD9, 6VDA

  • PubMed Abstract: 

    Zinc is a potent antimicrobial component of the innate immune response at the host-pathogen interface. Bacteria subvert or resist host zinc insults by metal efflux pathways that include cation diffusion facilitator (CDF) proteins. The structural and functional examination of this protein class has been limited, with only the structures of the zinc transporter YiiP proteins from E. coli and Shewanella oneidensis described to date. Here, we determine the metal binding properties, solution quaternary structures and three dimensional architectures of the C-terminal domains of the metal transporter CzcD proteins from Cupriavidus metallidurans, Pseudomonas aeruginosa and Thermotoga maritima. We reveal significant diversity in the metal-binding properties and structures of these proteins and discover a potential novel mechanism for metal-promoted dimerization for the Cupriavidus metallidurans and Pseudomonas aeruginosa proteins.

  • Organizational Affiliation

    Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne 3083, Australia.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Probable cation efflux system protein
A, B
86Pseudomonas aeruginosa PAO1Mutation(s): 0 
Gene Names: PA0397
Find proteins for Q9I6A3 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore Q9I6A3 
Go to UniProtKB:  Q9I6A3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9I6A3
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.238 
  • R-Value Observed: 0.241 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.916α = 90
b = 58.247β = 90
c = 72.014γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

  • Released Date: 2020-06-24 
  • Deposition Author(s): Maher, M.J.

Funding OrganizationLocationGrant Number
Australian Research Council (ARC)AustraliaFT180100397

Revision History  (Full details and data files)

  • Version 1.0: 2020-06-24
    Type: Initial release
  • Version 1.1: 2024-03-06
    Changes: Data collection, Database references, Derived calculations, Refinement description