Crystal structure of GlcV, the ABC-ATPase of the glucose ABC transporter from Sulfolobus solfataricus

Experimental Data Snapshot

  • Resolution: 1.95 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.191 

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Crystal structures of the ATPase subunit of the glucose ABC transporter from Sulfolobus solfataricus: nucleotide-free and nucleotide-bound conformations

Verdon, G.Albers, S.V.Dijkstra, B.W.Driessen, A.J.Thunnissen, A.M.

(2003) J Mol Biol 330: 343-358

  • DOI: https://doi.org/10.1016/s0022-2836(03)00575-8
  • Primary Citation of Related Structures:  
    1OXS, 1OXT, 1OXU, 1OXV

  • PubMed Abstract: 

    The ABC-ATPase GlcV energizes a binding protein-dependent ABC transporter that mediates glucose uptake in Sulfolobus solfataricus. Here, we report high-resolution crystal structures of GlcV in different states along its catalytic cycle: distinct monomeric nucleotide-free states and monomeric complexes with ADP-Mg(2+) as a product-bound state, and with AMPPNP-Mg(2+) as an ATP-like bound state. The structure of GlcV consists of a typical ABC-ATPase domain, comprising two subdomains, connected by a linker region to a C-terminal domain of unknown function. Comparisons of the nucleotide-free and nucleotide-bound structures of GlcV reveal re-orientations of the ABCalpha subdomain and the C-terminal domain relative to the ABCalpha/beta subdomain, and switch-like rearrangements in the P-loop and Q-loop regions. Additionally, large conformational differences are observed between the GlcV structures and those of other ABC-ATPases, further emphasizing the inherent flexibility of these proteins. Notably, a comparison of the monomeric AMPPNP-Mg(2+)-bound GlcV structure with that of the dimeric ATP-Na(+)-bound LolD-E171Q mutant reveals a +/-20 degrees rigid body re-orientation of the ABCalpha subdomain relative to the ABCalpha/beta subdomain, accompanied by a local conformational difference in the Q-loop. We propose that these differences represent conformational changes that may have a role in the mechanism of energy-transduction and/or allosteric control of the ABC-ATPase activity in bacterial importers.

  • Organizational Affiliation

    Laboratory of Biophysical Chemistry, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ABC transporter, ATP binding proteinA,
C [auth D]
353Saccharolobus solfataricusMutation(s): 0 
Gene Names: glcV
EC: 7.5.2
Find proteins for Q97UY8 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2))
Explore Q97UY8 
Go to UniProtKB:  Q97UY8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ97UY8
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on ANP

Download Ideal Coordinates CCD File 
HA [auth B],
T [auth A],
UA [auth D]
C10 H17 N6 O12 P3
Query on IOD

Download Ideal Coordinates CCD File 
AA [auth B]
BA [auth B]
CA [auth B]
DA [auth B]
E [auth A]
AA [auth B],
BA [auth B],
CA [auth B],
DA [auth B],
E [auth A],
EA [auth B],
F [auth A],
FA [auth B],
G [auth A],
GA [auth B],
H [auth A],
I [auth A],
J [auth A],
JA [auth D],
K [auth A],
KA [auth D],
L [auth A],
LA [auth D],
M [auth A],
MA [auth D],
N [auth A],
NA [auth D],
O [auth A],
OA [auth D],
P [auth A],
PA [auth D],
Q [auth A],
QA [auth D],
R [auth A],
RA [auth D],
S [auth A],
SA [auth D],
TA [auth D],
V [auth B],
W [auth B],
X [auth B],
Y [auth B],
Z [auth B]
Query on MG

Download Ideal Coordinates CCD File 
D [auth A],
IA [auth D],
U [auth B]
Experimental Data & Validation

Experimental Data

  • Resolution: 1.95 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.191 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.094α = 90
b = 148.776β = 90
c = 176.71γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-06-17
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance