4LDS

The inward-facing structure of the glucose transporter from Staphylococcus epidermidis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.341 
  • R-Value Work: 0.302 
  • R-Value Observed: 0.304 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of a glucose/H+ symporter and its mechanism of action.

Iancu, C.V.Zamoon, J.Woo, S.B.Aleshin, A.Choe, J.Y.

(2013) Proc Natl Acad Sci U S A 110: 17862-17867

  • DOI: 10.1073/pnas.1311485110
  • Primary Citation of Related Structures:  
    4LDS

  • PubMed Abstract: 
  • Glucose transporters are required to bring glucose into cells, where it is an essential energy source and precursor in protein and lipid synthesis. These transporters are involved in important common diseases such as cancer and diabetes. Here, we report ...

    Glucose transporters are required to bring glucose into cells, where it is an essential energy source and precursor in protein and lipid synthesis. These transporters are involved in important common diseases such as cancer and diabetes. Here, we report the crystal structure of the Staphylococcus epidermidis glucose/H(+) symporter in an inward-facing conformation at 3.2-Å resolution. The Staphylococcus epidermidis glucose/H(+) symporter is homologous to human glucose transporters, is very specific and has high avidity for glucose, and is inhibited by the human glucose transport inhibitors cytochalasin B, phloretin, and forskolin. On the basis of the crystal structure in conjunction with mutagenesis and functional studies, we propose a mechanism for glucose/H(+) symport and discuss the symport mechanism versus facilitated diffusion.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Rosalind Franklin University of Medicine and Science, The Chicago Medical School, North Chicago, IL 60064.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glucose transporter GlcP AB446Staphylococcus epidermidis ATCC 12228Mutation(s): 0 
Gene Names: glcPSE_0247
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Major Facilitator Superfamily (MFS) Transporters
Protein: 
GlcP Glucose/H+ symporter
Find proteins for A0A0H2VG78 (Staphylococcus epidermidis (strain ATCC 12228 / FDA PCI 1200))
Explore A0A0H2VG78 
Go to UniProtKB:  A0A0H2VG78
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.341 
  • R-Value Work: 0.302 
  • R-Value Observed: 0.304 
  • Space Group: I 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 130.07α = 90
b = 118.85β = 100.08
c = 160.049γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
SHELXSphasing
PHENIXrefinement
XDSdata reduction
XDSdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-16
    Type: Initial release
  • Version 1.1: 2014-02-05
    Changes: Database references
  • Version 1.2: 2020-09-02
    Changes: Database references, Source and taxonomy, Structure summary