5U4U

pseudoGTPase domain (pG1) of p190RhoGAP-A

  • Classification: HYDROLASE
  • Organism(s): Xenopus laevis
  • Expression System: Escherichia coli BL21(DE3)

  • Deposited: 2016-12-06 Released: 2017-09-20 
  • Deposition Author(s): Stiegler, A.L., Boggon, T.J.
  • Funding Organization(s): National Institutes of Health/National Institute of Neurological Disorders and Stroke; National Institutes of Health/National Institute of General Medical Sciences; National Institutes of Health/Office of the Director 

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

p190RhoGAP proteins contain pseudoGTPase domains.

Stiegler, A.L.Boggon, T.J.

(2017) Nat Commun 8: 506-506

  • DOI: 10.1038/s41467-017-00483-x
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The two p190RhoGAP proteins, p190RhoGAP-A and -B, are key regulators of Rho GTPase signaling and are essential for actin cytoskeletal structure and contractility. Here we report the discovery of two evolutionarily conserved GTPase-like domains locate ...

    The two p190RhoGAP proteins, p190RhoGAP-A and -B, are key regulators of Rho GTPase signaling and are essential for actin cytoskeletal structure and contractility. Here we report the discovery of two evolutionarily conserved GTPase-like domains located in the 'middle domain', previously thought to be unstructured. Deletion of these domains reduces RhoGAP activity. Crystal structures, MANT-GTPĪ³S binding, thermal denaturation, biochemical assays and sequence homology analysis all strongly support defects in nucleotide-binding activity. Analysis of p190RhoGAP proteins therefore indicates the presence of two previously unidentified domains which represent an emerging group of pseudoenzymes, the pseudoGTPases.A growing number of 'pseudoenzymes' with a regulatory role in signal transduction processes but without catalytic activity are being identified. Here, the authors identify two pseudoGTPase domains in p190RhoGAP, characterize them biochemically and structurally and show that they influence RhoGAP activity.


    Organizational Affiliation

    Department of Pharmacology, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, 06520, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MGC81300 protein
A
178Xenopus laevisMutation(s): 0 
N/A
Find proteins for A0A1L8F832 (Xenopus laevis)
Go to UniProtKB:  A0A1L8F832
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
MLI
Query on MLI

Download SDF File 
Download CCD File 
A
MALONATE ION
C3 H2 O4
OFOBLEOULBTSOW-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 62.937α = 90.00
b = 62.937β = 90.00
c = 161.017γ = 120.00
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationCountryGrant Number
National Institutes of Health/National Institute of Neurological Disorders and StrokeUnited StatesR01NS085078
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM109487
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM114621
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM102262
National Institutes of Health/Office of the DirectorUnited StatesS10OD018007
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01GM100411

Revision History 

  • Version 1.0: 2017-09-20
    Type: Initial release
  • Version 1.1: 2017-09-27
    Type: Database references