3Q85

Crystal Structure of Rem2 G-domain -GTP Analog Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.209 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

RGK Family G-Domain:GTP Analog Complex Structures and Nucleotide-Binding Properties.

Sasson, Y.Navon-Perry, L.Huppert, D.Hirsch, J.A.

(2011) J Mol Biol 413: 372-389

  • DOI: 10.1016/j.jmb.2011.08.017
  • Primary Citation of Related Structures:  
    3Q72, 3Q7P, 3Q7Q, 3Q85

  • PubMed Abstract: 
  • The RGK family of small G-proteins, including Rad, Gem, Rem1, and Rem2, is inducibly expressed in various mammalian tissues and interacts with voltage-dependent calcium channels and Rho kinase. Many questions remain regarding their physiological roles and molecular mechanism ...

    The RGK family of small G-proteins, including Rad, Gem, Rem1, and Rem2, is inducibly expressed in various mammalian tissues and interacts with voltage-dependent calcium channels and Rho kinase. Many questions remain regarding their physiological roles and molecular mechanism. Previous crystallographic studies reported RGK G-domain:guanosine di-phosphate structures. To test whether RGK proteins undergo a nucleotide-induced conformational change, we determined the crystallographic structures of Rad:GppNHp and Rem2:GppNHp to 1.7 and 1.8 Å resolutions, respectively. Also, we characterized the nucleotide-binding properties and conformations for Gem, Rad, and several structure-based mutants using fluorescence spectroscopy. The results suggest that RGK G-proteins may not behave as Ras-like canonical nucleotide-induced molecular switches. Further, the RGK proteins have differing structures and nucleotide-binding properties, which may have implications for their varied action on effectors.


    Organizational Affiliation

    Department of Biochemistry, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GTP-binding protein REM 2A, B169Mus musculusMutation(s): 0 
Gene Names: Rem2
UniProt
Find proteins for Q8VEL9 (Mus musculus)
Explore Q8VEL9 
Go to UniProtKB:  Q8VEL9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8VEL9
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GNP
Query on GNP

Download Ideal Coordinates CCD File 
C [auth A],
F [auth B]
PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
C10 H17 N6 O13 P3
UQABYHGXWYXDTK-UUOKFMHZSA-N
 Ligand Interaction
SCN
Query on SCN

Download Ideal Coordinates CCD File 
E [auth A],
H [auth B],
I [auth B]
THIOCYANATE ION
C N S
ZMZDMBWJUHKJPS-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
D [auth A],
G [auth B]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.209 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.525α = 90
b = 59.08β = 101.26
c = 56.144γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHENIXmodel building
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-09-21
    Type: Initial release
  • Version 1.1: 2011-10-26
    Changes: Database references