3C8P

X-ray structure of Viscotoxin A1 from Viscum album L.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structures of viscotoxins A1 and B2 from European mistletoe solved using native data alone

Pal, A.Debreczeni, J.E.Sevvana, M.Gruene, T.Kahle, B.Zeeck, A.Sheldrick, G.M.

(2008) Acta Crystallogr.,Sect.D 64: 985-992

  • DOI: 10.1107/S0907444908022646
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Crystals of the cytotoxic thionin proteins viscotoxins A1 and B2 extracted from mistletoe diffracted to high resolution (1.25 and 1.05 A, respectively) and are excellent candidates for testing crystallographic methods. Ab initio direct methods were o ...

    Crystals of the cytotoxic thionin proteins viscotoxins A1 and B2 extracted from mistletoe diffracted to high resolution (1.25 and 1.05 A, respectively) and are excellent candidates for testing crystallographic methods. Ab initio direct methods were only successful in solving the viscotoxin B2 structure, which with 861 unique non-H atoms is one of the largest unknown structures without an atom heavier than sulfur to be solved in this way, but sulfur-SAD phasing provided a convincing solution for viscotoxin A1. Both proteins form dimers in the crystal and viscotoxin B2 (net charge +4 per monomer), but not viscotoxin A1 (net charge +6), is coordinated by sulfate or phosphate anions. The viscotoxin A1 crystal has a higher solvent content than the viscotoxin B2 crystal (49% as opposed to 28%) with solvent channels along the crystallographic 4(3) axes.


    Organizational Affiliation

    Lehrstuhl für Strukturchemie, Georg-August-Universität, Tammannstrasse 4, D-37077 Göttingen, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Viscotoxin A1
A, B
46Viscum albumMutation(s): 0 
Find proteins for D0VWT3 (Viscum album)
Go to UniProtKB:  D0VWT3
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.191 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 65.730α = 90.00
b = 65.730β = 90.00
c = 47.160γ = 90.00
Software Package:
Software NamePurpose
SHELXEmodel building
PDB_EXTRACTdata extraction
SADABSdata scaling
SHELXDphasing
XPREPdata reduction
SAINTdata reduction
SHELXL-97refinement
SHELXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-06-17
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance