3PQC

Crystal structure of Thermotoga maritima ribosome biogenesis GTP-binding protein EngB (YsxC/YihA) in complex with GDP

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.183 

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Literature

Structure of an essential GTPase, YsxC, from Thermotoga maritima

Chan, K.H., Wong, K.B.

(2011) Acta Crystallogr Sect F Struct Biol Cryst Commun 67: 640-646

  • DOI: 10.1107/S1744309111011651
  • Primary Citation of Related Structures:  
    3PQC, 3PR1

  • PubMed Abstract: 

    • YsxC belongs to the YihA family of TRAFAC class GTPases. The protein is involved in the biogenesis of ribosomes and is essential for the survival of a wide range of bacteria. Here, crystal structures of YsxC from Thermotoga maritima and its complex with GDP were determined at maximal resolutions of 2 ...

    YsxC belongs to the YihA family of TRAFAC class GTPases. The protein is involved in the biogenesis of ribosomes and is essential for the survival of a wide range of bacteria. Here, crystal structures of YsxC from Thermotoga maritima and its complex with GDP were determined at maximal resolutions of 2.3 and 1.9 Å, respectively. Major structural differences are observed in the switch I region, which is disordered in the apo form but exists in both an `open' and a `closed' conformation in the GDP-bound state. A comparison with the structure of the GMPPNP-YsxC complex from Bacillus subtilis provides insights into the mechanism of conformational change in the switch I and II regions upon hydrolysis of GTP.

    Organizational Affiliation: 

    School of Life Sciences, Centre for Protein Science and Crystallography, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Probable GTP-binding protein engBA, B195Thermotoga maritimaMutation(s): 0 
Gene Names: engB, TM_1466
UniProt
Find proteins for Q9X1H7 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8))
Explore Q9X1H7 
Go to UniProtKB:  Q9X1H7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9X1H7
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP
Download Ideal Coordinates CCD File 
C [auth A],
E [auth B]		GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N		 Ligand Interaction
PEG
Query on PEG
Download Ideal Coordinates CCD File 
D [auth A],
F [auth B]		DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.183 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.67α = 90
b = 69.714β = 90
c = 94.836γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
CNSrefinement
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2010-11-26 
  • Released Date: 2011-06-08 
    • Deposition Author(s): Chan, K.H., Wong, K.B.

Revision History  (Full details and data files)

  • Version 1.0: 2011-06-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2011-11-23
    Changes: Database references
  • Version 1.3: 2014-12-10
    Changes: Structure summary