1PW4

Crystal Structure of the Glycerol-3-Phosphate Transporter from E.Coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.325 
  • R-Value Work: 0.296 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and Mechanism of the Glycerol-3-Phosphate Transporter from Escherichia Coli

Huang, Y.Lemieux, M.J.Song, J.Auer, M.Wang, D.N.

(2003) Science 301: 616-620

  • DOI: 10.1126/science.1087619

  • PubMed Abstract: 
  • The major facilitator superfamily represents the largest group of secondary membrane transporters in the cell. Here we report the 3.3 angstrom resolution structure of a member of this superfamily, GlpT, which transports glycerol-3-phosphate into the ...

    The major facilitator superfamily represents the largest group of secondary membrane transporters in the cell. Here we report the 3.3 angstrom resolution structure of a member of this superfamily, GlpT, which transports glycerol-3-phosphate into the cytoplasm and inorganic phosphate into the periplasm. The amino- and carboxyl-terminal halves of the protein exhibit a pseudo two-fold symmetry. Closed off to the periplasm, a centrally located substrate-translocation pore contains two arginines at its closed end, which comprise the substrate-binding site. Upon substrate binding, the protein adopts a more compact conformation. We propose that GlpT operates by a single-binding site, alternating-access mechanism through a rocker-switch type of movement.


    Organizational Affiliation

    Skirball Institute of Biomolecular Medicine and Department of Cell Biology, New York University School of Medicine, 540 First Avenue, New York, NY 10016, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glycerol-3-phosphate transporter
A
451Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: glpT
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Major Facilitator Superfamily (MFS) Transporters
Protein: 
GlpT Glycerol-3-Phosphate Transporter
Find proteins for P08194 (Escherichia coli (strain K12))
Go to UniProtKB:  P08194
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.325 
  • R-Value Work: 0.296 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 97.640α = 90.00
b = 97.640β = 90.00
c = 175.151γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
HKL-2000data collection
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-08-05
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance