1GTO

HIGH RESOLUTION STRUCTURE OF A HYPERSTABLE HELICAL BUNDLE PROTEIN MUTANT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.82 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Amino-acid substitutions in a surface turn modulate protein stability.

Predki, P.F.Agrawal, V.Brunger, A.T.Regan, L.

(1996) Nat.Struct.Mol.Biol. 3: 54-58


  • PubMed Abstract: 
  • A surface turn position in a four-helix bundle protein, Rop, was selected to investigate the role of turns in protein structure and stability. Although all twenty amino acids can be substituted at this position to generate a correctly folded protein, ...

    A surface turn position in a four-helix bundle protein, Rop, was selected to investigate the role of turns in protein structure and stability. Although all twenty amino acids can be substituted at this position to generate a correctly folded protein, they produce an unusually large range of thermodynamic stabilities. Moreover, the majority of substitutions give rise to proteins with enhanced thermal stability compared to that of the wild type. By introducing the same twenty mutations at this position, but in a simplified context, we were able to deconvolute intrinsic preferences from local environmental effects. The intrinsic preferences can be explained on the basis of preferred backbone dihedral angles, but local environmental context can significantly modify these effects.


    Related Citations: 
    • Amino-Acid Substitutions in a Surface Turn Modulate Protein Stability
      Predki, P.F.,Agrawal, V.,Brunger, A.T.,Regan, L.
      (1996) Nat.Struct.Mol.Biol. 3: 54


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry Yale University, New Haven, Connecticut 06520, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ROP
A, B, C
62Escherichia coliMutations: D30G
Gene Names: rop
Find proteins for P03051 (Escherichia coli)
Go to UniProtKB:  P03051
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.82 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.224 
  • Space Group: I 4 2 2
Unit Cell:
Length (Å)Angle (°)
a = 95.117α = 90.00
b = 95.117β = 90.00
c = 85.572γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
DENZOdata reduction
X-PLORphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-01-27
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance