1YVS

Trimeric domain swapped barnase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.187 
  • R-Value Observed: 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 U S A 96: 818-822

  • DOI: 10.1073/pnas.96.3.818
  • Primary Citation of Related Structures:  
    1YVS

  • 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 molecule related through threefold symmetry ...

    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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BARNASEA110Bacillus amyloliquefaciensMutation(s): 0 
EC: 3.1.27
UniProt
Find proteins for P00648 (Bacillus amyloliquefaciens)
Explore P00648 
Go to UniProtKB:  P00648
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth A], C [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.187 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.08α = 90
b = 70.08β = 90
c = 162.55γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
MOSFLMdata reduction
CCP4data scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

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

Revision History  (Full details and data files)

  • Version 1.0: 1999-02-02
    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