3W6R

Crystal structure of the GAP domain of human MgcRacGAP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystal structure of GTPase-activating domain from human MgcRacGAP.

Matsuura, A.Lee, H.H.

(2013) Biochem.Biophys.Res.Commun. 435: 367-372

  • DOI: 10.1016/j.bbrc.2013.04.094

  • PubMed Abstract: 
  • Cytokinesis in animal cells relies on a centralspindlin complex consisting of male germ cell RacGap (MgcRacGAP) and mitotic kinesin-like protein 1 (MKLP1). Rho GTPases act as molecular switches to regulate the actin cytoskeleton for cytokinesis, of w ...

    Cytokinesis in animal cells relies on a centralspindlin complex consisting of male germ cell RacGap (MgcRacGAP) and mitotic kinesin-like protein 1 (MKLP1). Rho GTPases act as molecular switches to regulate the actin cytoskeleton for cytokinesis, of which Rac1 is regulated by MgcRacGAP. In this study, we determined the crystal structure of the GTPase-activating protein (GAP) domain of MgcRacGAP at a resolution of 1.9Å. The conformation of Arg385, which is a key residue for GAP activity, was found to be different from that of previously reported GAP proteins, and MgcRacGAP (residues 348-546) was found to exist as a monomer in solution, according to Stokes radii. We also measured the GAP activity of MgcRacGAP mutants for Rac1.


    Organizational Affiliation

    Department of Bio & Nano Chemistry, Kookmin University, Seoul 136-702, Republic of Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Rac GTPase-activating protein 1
A
202Homo sapiensMutation(s): 0 
Gene Names: RACGAP1 (KIAA1478, MGCRACGAP)
Find proteins for Q9H0H5 (Homo sapiens)
Go to Gene View: RACGAP1
Go to UniProtKB:  Q9H0H5
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 41.466α = 90.00
b = 63.159β = 90.00
c = 74.078γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-02-26
    Type: Initial release