4WGW

Staphylococcus capitis divalent metal ion transporter (DMT) in complex with manganese


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.252 
  • R-Value Observed: 0.253 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal structure of a SLC11 (NRAMP) transporter reveals the basis for transition-metal ion transport.

Ehrnstorfer, I.A.Geertsma, E.R.Pardon, E.Steyaert, J.Dutzler, R.

(2014) Nat Struct Mol Biol 21: 990-996

  • DOI: 10.1038/nsmb.2904
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Members of the SLC11 (NRAMP) family transport iron and other transition-metal ions across cellular membranes. These membrane proteins are present in all kingdoms of life with a high degree of sequence conservation. To gain insight into the determinan ...

    Members of the SLC11 (NRAMP) family transport iron and other transition-metal ions across cellular membranes. These membrane proteins are present in all kingdoms of life with a high degree of sequence conservation. To gain insight into the determinants of ion selectivity, we have determined the crystal structure of Staphylococcus capitis DMT (ScaDMT), a close prokaryotic homolog of the family. ScaDMT shows a familiar architecture that was previously identified in the amino acid permease LeuT. The protein adopts an inward-facing conformation with a substrate-binding site located in the center of the transporter. This site is composed of conserved residues, which coordinate Mn2+, Fe2+ and Cd2+ but not Ca2+. Mutations of interacting residues affect ion binding and transport in both ScaDMT and human DMT1. Our study thus reveals a conserved mechanism for transition-metal ion selectivity within the SLC11 family.


    Organizational Affiliation

    Department of Biochemistry, University of Zurich, Zurich, Switzerland.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Divalent metal cation transporter MntHA, C415Staphylococcus capitisMutation(s): 0 
Gene Names: mntHSEVCU116_0269
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Camelid antibody fragment, nanobodyB, D124Lama glamaMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download CCD File 
A, C
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.40 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.252 
  • R-Value Observed: 0.253 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 114.17α = 90
b = 114.17β = 90
c = 257.53γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-10-22
    Type: Initial release
  • Version 1.1: 2014-10-29
    Changes: Database references
  • Version 1.2: 2014-11-19
    Changes: Database references
  • Version 1.3: 2018-05-09
    Changes: Data collection, Derived calculations