2IWR

Gtpase Like Domain Of Centaurin Gamma 1 (Human)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.150 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The Centaurin Gamma-1 Gtpase-Like Domain Functions as an Ntpase.

Soundararajan, M.Yang, X.Elkins, J.M.Sobott, F.Doyle, D.A.

(2007) Biochem.J. 401: 679

  • DOI: 10.1042/BJ20060555
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Centaurins are a family of proteins that contain GTPase-activating protein domains, with the gamma family members containing in addition a GTPase-like domain. Centaurins reside mainly in the nucleus and are known to activate phosphoinositide 3-kinase ...

    Centaurins are a family of proteins that contain GTPase-activating protein domains, with the gamma family members containing in addition a GTPase-like domain. Centaurins reside mainly in the nucleus and are known to activate phosphoinositide 3-kinase, a key regulator of cell proliferation, motility and vesicular trafficking. In the present study, using X-ray structural analysis, enzymatic assays and nucleotide-binding studies, we show that, for CENTG1 (centaurin gamma-1) the GTPase-like domain has broader trinucleotide specificity. Alterations within the G4 motif of CENTG1 from the highly conserved NKXD found in typical GTPases to TQDR result in the loss of specificity, a lower affinity for the nucleotides and higher turnover rates. These results indicate that the centaurins could be more accurately classified as NTPases and point to alternative mechanisms of cell signalling control.


    Organizational Affiliation

    The Structural Genomics Consortium, University of Oxford, Botnar Research Centre, Oxford OX3 7LD, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CENTAURIN GAMMA 1
A
178Homo sapiensMutation(s): 0 
Gene Names: AGAP2 (CENTG1, KIAA0167)
Find proteins for Q99490 (Homo sapiens)
Go to Gene View: AGAP2
Go to UniProtKB:  Q99490
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CAF
Query on CAF
A
L-PEPTIDE LINKINGC5 H12 As N O3 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.150 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 36.256α = 90.00
b = 62.146β = 90.00
c = 67.498γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
PHASERphasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-07-04
    Type: Initial release