5IOF

Structure of the transmembrane domain of the transporter SLC26Dg


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.2 Å
  • R-Value Free: 0.312 
  • R-Value Work: 0.291 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of a prokaryotic fumarate transporter reveals the architecture of the SLC26 family.

Geertsma, E.R.Chang, Y.N.Shaik, F.R.Neldner, Y.Pardon, E.Steyaert, J.Dutzler, R.

(2015) Nat. Struct. Mol. Biol. 22: 803-808

  • DOI: 10.1038/nsmb.3091
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The SLC26 family of membrane proteins combines a variety of functions within a conserved molecular scaffold. Its members, besides coupled anion transporters and channels, include the motor protein Prestin, which confers electromotility to cochlear ou ...

    The SLC26 family of membrane proteins combines a variety of functions within a conserved molecular scaffold. Its members, besides coupled anion transporters and channels, include the motor protein Prestin, which confers electromotility to cochlear outer hair cells. To gain insight into the architecture of this protein family, we characterized the structure and function of SLC26Dg, a facilitator of proton-coupled fumarate symport, from the bacterium Deinococcus geothermalis. Its modular structure combines a transmembrane unit and a cytoplasmic STAS domain. The membrane-inserted domain consists of two intertwined inverted repeats of seven transmembrane segments each and resembles the fold of the unrelated transporter UraA. It shows an inward-facing, ligand-free conformation with a potential substrate-binding site at the interface between two helix termini at the center of the membrane. This structure defines the common framework for the diverse functional behavior of the SLC26 family.


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Sulphate transporter
A, B, C, D
401Deinococcus geothermalis (strain DSM 11300)Mutation(s): 0 
Find proteins for Q1J2S8 (Deinococcus geothermalis (strain DSM 11300))
Go to UniProtKB:  Q1J2S8
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.2 Å
  • R-Value Free: 0.312 
  • R-Value Work: 0.291 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 80.590α = 96.33
b = 82.490β = 92.94
c = 166.370γ = 119.23
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata scaling
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-03-16
    Type: Initial release
  • Version 1.1: 2018-11-21
    Type: Advisory, Data collection, Derived calculations