4ART

STRUCTURE OF THE ORF273 PROTEIN FROM THE ACIDIANUS TWO-TAILED VIRUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystal Structure of Atv(Orf273), a New Fold for a Thermo-and Acido-Stable Protein from the Acidianus Two-Tailed Virus.

Felisberto-Rodrigues, C.Blangy, S.Goulet, A.Vestergaard, G.Cambillau, C.Garrett, R.A.Ortiz-Lombardia, M.

(2012) Plos One 7: 45847

  • DOI: 10.1371/journal.pone.0045847
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Acidianus two-tailed virus (ATV) infects crenarchaea of the genus Acidianus living in terrestrial thermal springs at extremely high temperatures and low pH. ATV is a member of the Bicaudaviridae virus family and undergoes extra-cellular development o ...

    Acidianus two-tailed virus (ATV) infects crenarchaea of the genus Acidianus living in terrestrial thermal springs at extremely high temperatures and low pH. ATV is a member of the Bicaudaviridae virus family and undergoes extra-cellular development of two tails, a process that is unique in the viral world. To understand this intriguing phenomenon, we have undertaken structural studies of ATV virion proteins and here we present the crystal structure of one of these proteins, ATV(ORF273). ATV(ORF273) forms tetramers in solution and a molecular envelope is provided for the tetramer, computed from small-angle X-ray scattering (SAXS) data. The crystal structure has properties typical of hyperthermostable proteins, including a relatively high number of salt bridges. However, the protein also exhibits flexible loops and surface pockets. Remarkably, ATV(ORF273) displays a new α + β protein fold, consistent with the absence of homologues of this protein in public sequence databases.


    Organizational Affiliation

    CNRS, Aix-Marseille Université, AFMB, UMR 7257, Campus de Luminy, Marseille, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
STRUCTURAL PROTEIN ORF273
A, B
279Acidianus two-tailed virusMutation(s): 0 
Find proteins for Q3V4T6 (Acidianus two-tailed virus)
Go to UniProtKB:  Q3V4T6
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.202 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 78.620α = 90.00
b = 78.620β = 90.00
c = 189.420γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
autoSHARPphasing
XSCALEdata scaling
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-10-24
    Type: Initial release