1YVS

Trimeric domain swapped barnase

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 

Literature

Trimeric domain-swapped barnase.

Zegers, I., Deswarte, J., Wyns, L.

(1999) Proc.Natl.Acad.Sci.USA 96: 818-822


  • PubMed Abstract: 

    • The structure of a trimeric domain-swapped form of barnase (EC 3.1. 27.3) was determined by x-ray crystallography at a resolution of 2.2 A from crystals of space group R32. Residues 1-36 of one molecule associate with residues 41-110 from another mol ...

    The structure of a trimeric domain-swapped form of barnase (EC 3.1. 27.3) was determined by x-ray crystallography at a resolution of 2.2 A from crystals of space group R32. Residues 1-36 of one molecule associate with residues 41-110 from another molecule related through threefold symmetry. The resulting cyclic trimer contains three protein folds that are very similar to those in monomeric barnase. Both swapped domains contain a nucleation site for folding. The formation of a domain-swapped trimer is consistent with the description of the folding process of monomeric barnase as the formation and subsequent association of two foldons.

    Organizational Affiliation: 

    Laboratorium voor Ultrastructuur, Vrije Universiteit Brussel, Vlaams Interuniversitair Instituut voor Biotechnologie, Paardenstraat 65, B-1640 St. Genesius Rode, Belgium. igzegers@vub.ac.be




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BARNASE
A
110Bacillus amyloliquefaciensMutation(s): 0 
EC: 3.1.27.-
Find proteins for P00648 (Bacillus amyloliquefaciens)
Go to UniProtKB:  P00648
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4
Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.187 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 70.080α = 90.00
b = 70.080β = 90.00
c = 162.550γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
X-PLORrefinement
X-PLORmodel building
CCP4data scaling
X-PLORphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 1998-12-10 
  • Released Date: 1999-02-02 
  • Deposition Author(s): Zegers, I., Wyns, L.

Revision History 

  • Version 1.0: 1999-02-02
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance