5JD0

crystal structure of ARAP3 RhoGAP domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Basis for the Specific Recognition of RhoA by the Dual GTPase-activating Protein ARAP3

Bao, H.Li, F.Wang, C.Wang, N.Jiang, Y.Tang, Y.Wu, J.Shi, Y.

(2016) J.Biol.Chem. 291: 16709-16719

  • DOI: 10.1074/jbc.M116.736140
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • ARAP3 (Arf-GAP with Rho-GAP domain, ANK repeat, and PH domain-containing protein 3) is unique for its dual specificity GAPs (GTPase-activating protein) activity for Arf6 (ADP-ribosylation factor 6) and RhoA (Ras homolog gene family member A) regulate ...

    ARAP3 (Arf-GAP with Rho-GAP domain, ANK repeat, and PH domain-containing protein 3) is unique for its dual specificity GAPs (GTPase-activating protein) activity for Arf6 (ADP-ribosylation factor 6) and RhoA (Ras homolog gene family member A) regulated by phosphatidylinositol 3,4,5-trisphosphate and a small GTPase Rap1-GTP and is involved in regulation of cell shape and adhesion. However, the molecular interface between the ARAP3-RhoGAP domain and RhoA is unknown, as is the substrates specificity of the RhoGAP domain. In this study, we solved the crystal structure of RhoA in complex with the RhoGAP domain of ARAP3. The structure of the complex presented a clear interface between the RhoGAP domain and RhoA. By analyzing the crystal structure and in combination with in vitro GTPase activity assays and isothermal titration calorimetry experiments, we identified the crucial residues affecting RhoGAP activity and substrates specificity among RhoA, Rac1 (Ras-related C3 botulinum toxin substrate 1), and Cdc42 (cell division control protein 42 homolog).


    Organizational Affiliation

    From the Hefei National Laboratory for Physical Science at Microscale, Collaborative Innovation Center of Chemistry for Life Sciences and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Arf-GAP with Rho-GAP domain, ANK repeat and PH domain-containing protein 3
A, B
211Homo sapiensMutation(s): 0 
Gene Names: ARAP3 (CENTD3)
Find proteins for Q8WWN8 (Homo sapiens)
Go to Gene View: ARAP3
Go to UniProtKB:  Q8WWN8
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.220 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 108.510α = 90.00
b = 108.510β = 90.00
c = 95.010γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PDB_EXTRACTdata extraction
PHENIXrefinement
SCALAdata scaling
SCALAdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-06-22
    Type: Initial release
  • Version 1.1: 2016-08-17
    Type: Database references