1B6Q

ALANINE 31 PROLINE MUTANT OF ROP PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.189 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Protein plasticity to the extreme: changing the topology of a 4-alpha-helical bundle with a single amino acid substitution.

Glykos, N.M.Cesareni, G.Kokkinidis, M.

(1999) Structure 7: 597-603

  • DOI: 10.1016/s0969-2126(99)80081-1
  • Primary Citation of Related Structures:  
    1B6Q

  • PubMed Abstract: 
  • Conventional wisdom has it that two proteins sharing 98.4% sequence identity have nearly identical three-dimensional structures. Here we provide a counter-example to this statement by showing that a single amino acid substitution can change the topology of a homodimeric 4-alpha-helical bundle protein ...

    Conventional wisdom has it that two proteins sharing 98.4% sequence identity have nearly identical three-dimensional structures. Here we provide a counter-example to this statement by showing that a single amino acid substitution can change the topology of a homodimeric 4-alpha-helical bundle protein.


    Related Citations: 
    • Meaningful Refinement of Poly-Alanine Models Using Rigid-Body Simulated Annealing : Application to the Structure Determination of the A31P Rop Mutant
      (1999) Acta Crystallogr D Biol Crystallogr 55: 1301

    Organizational Affiliation

    Foundation for Research and Technology-Hellas, Institute of Molecular Biology and Biotechnology, Heraklion, Crete, Greece.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ROPA63Escherichia coliMutation(s): 1 
Gene Names: rop
UniProt
Find proteins for P03051 (Escherichia coli)
Explore P03051 
Go to UniProtKB:  P03051
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.189 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 30.4α = 90
b = 42.1β = 90
c = 81.4γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
CAD4data reduction
CAD4data scaling
X-PLORphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-07-09
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2011-11-16
    Changes: Atomic model
  • Version 1.4: 2018-04-04
    Changes: Data collection, Other
  • Version 1.5: 2018-04-18
    Changes: Data collection