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

Experimental Data Snapshot

  • Resolution: 3.20 Å
  • R-Value Free: 0.341 
  • R-Value Work: 0.302 
  • R-Value Observed: 0.304 

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This is version 1.3 of the entry. See complete history


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: https://doi.org/10.1073/pnas.1311485110
  • Primary Citation of Related Structures:  

  • 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 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.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glucose transporter GlcP
A, B
446Staphylococcus epidermidis ATCC 12228Mutation(s): 0 
Gene Names: glcPSE_0247
Membrane Entity: Yes 
Find proteins for A0A0H2VG78 (Staphylococcus epidermidis (strain ATCC 12228 / FDA PCI 1200))
Explore A0A0H2VG78 
Go to UniProtKB:  A0A0H2VG78
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0H2VG78
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • 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
XDSdata reduction
XDSdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • 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
  • Version 1.3: 2024-02-28
    Changes: Data collection, Database references