2JHZ

CRYSTAL STRUCTURE OF RHOGDI E155S, E157S MUTANT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Protein Crystallization by Surface Entropy Reduction: Optimization of the Ser Strategy

Cooper, D.R.Boczek, T.Grelewska, K.Pinkowska, M.Sikorska, M.Zawadzki, M.Derewenda, Z.S.

(2007) Acta Crystallogr.,Sect.D 63: 636

  • DOI: 10.1107/S0907444907010931
  • Primary Citation of Related Structures:  2BXW, 2JHS, 2JHT, 2JHU, 2JHV, 2JHW, 2JHX, 2JHY, 2JI0
  • Also Cited By: 3R90

  • PubMed Abstract: 
  • A strategy of rationally engineering protein surfaces with the aim of obtaining mutants that are distinctly more susceptible to crystallization than the wild-type protein has previously been suggested. The strategy relies on replacing small clusters ...

    A strategy of rationally engineering protein surfaces with the aim of obtaining mutants that are distinctly more susceptible to crystallization than the wild-type protein has previously been suggested. The strategy relies on replacing small clusters of two to three surface residues characterized by high conformational entropy with alanines. This surface entropy reduction (or SER) method has proven to be an effective salvage pathway for proteins that are difficult to crystallize. Here, a systematic comparison of the efficacy of using Ala, His, Ser, Thr and Tyr to replace high-entropy residues is reported. A total of 40 mutants were generated and screened using two different procedures. The results reaffirm that alanine is a particularly good choice for a replacement residue and identify tyrosines and threonines as additional candidates that have considerable potential to mediate crystal contacts. The propensity of these mutants to form crystals in alternative screens in which the normal crystallization reservoir solutions were replaced with 1.5 M NaCl was also examined. The results were impressive: more than half of the mutants yielded a larger number of crystals with salt as the reservoir solution. This method greatly increased the variety of conditions that yielded crystals. Taken together, these results suggest a powerful crystallization strategy that combines surface engineering with efficient screening using standard and alternate reservoir solutions.


    Organizational Affiliation

    Department of Molecular Physiology and Biological Physics and Integrated Center for Structure-Function Innovation, University of Virginia, Charlottesville, Virginia 22908-0736, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RHO GDP-DISSOCIATION INHIBITOR 1
A, B
138Homo sapiensGene Names: ARHGDIA (GDIA1)
Find proteins for P52565 (Homo sapiens)
Go to Gene View: ARHGDIA
Go to UniProtKB:  P52565
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.228 
  • R-Value Work: 0.186 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 130.629α = 90.00
b = 130.629β = 90.00
c = 163.409γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-05-08
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance