Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 19.61 kDa 
• Atom Count: 1451 
• Residue Count: 174 
• Unique protein chains: 1

2BMJ

GTPase like domain of Centaurin Gamma 1 (Human)

• DOI: 10.2210/pdb2BMJ/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2005-03-14 Released: 2005-04-12 
• Deposition Author(s): Yang, X., Elkins, J.M., Soundararajan, M., Arrowsmith, C., Edwards, A., Sundstrom, M., Doyle, D.A., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.225 
• R-Value Work: 0.163 
• R-Value Observed: 0.166 

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

• PubMed: 17037982 
• DOI: 10.1042/BJ20060555
• Primary Citation of Related Structures:  
  2IWR, 2BMJ


• 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, 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CENTAURIN GAMMA 1	A	178	Homo sapiens	Mutation(s): 0  Gene Names: AGAP2, CENTG1, KIAA0167
Find proteins for Q99490 (Homo sapiens) Explore Q99490  Go to UniProtKB:  Q99490
NIH Common Fund Data Resources
PHAROS:  Q99490 GTEx:  ENSG00000135439

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.225 
• R-Value Work: 0.163 
• R-Value Observed: 0.166 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.151	α = 90
b = 31.104	β = 102.22
c = 81.928	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALE	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-03-14 
• Released Date: 2005-04-12 
Deposition Author(s): Yang, X., Elkins, J.M., Soundararajan, M., Arrowsmith, C., Edwards, A., Sundstrom, M., Doyle, D.A., Structural Genomics Consortium (SGC)

Revision History 

• Version 1.0: 2005-04-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2018-04-04
  Changes: Data collection