1Q31

Crystal Structure of the Tobacco Etch Virus Protease C151A mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.302 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.240 

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This is version 1.2 of the entry. See complete history


Literature

Crystal structure of tobacco etch virus protease shows the protein C terminus bound within the active site.

Nunn, C.M.Jeeves, M.Cliff, M.J.Urquhart, G.T.George, R.R.Chao, L.H.Tscuchia, Y.Djordjevic, S.

(2005) J Mol Biol 350: 145-155

  • DOI: 10.1016/j.jmb.2005.04.013
  • Primary Citation of Related Structures:  
    1Q31

  • PubMed Abstract: 
  • Tobacco etch virus (TEV) protease is a cysteine protease exhibiting stringent sequence specificity. The enzyme is widely used in biotechnology for the removal of the affinity tags from recombinant fusion proteins. Crystal structures of two TEV protease m ...

    Tobacco etch virus (TEV) protease is a cysteine protease exhibiting stringent sequence specificity. The enzyme is widely used in biotechnology for the removal of the affinity tags from recombinant fusion proteins. Crystal structures of two TEV protease mutants as complexes with a substrate and a product peptide provided the first insight into the mechanism of substrate specificity of this enzyme. We now report a 2.7A crystal structure of a full-length inactive C151A mutant protein crystallised in the absence of peptide. The structure reveals the C terminus of the protease bound to the active site. In addition, we determined dissociation constants of TEV protease substrate and product peptides using isothermal titration calorimetry for various forms of this enzyme. Data suggest that TEV protease could be inhibited by the peptide product of autolysis. Separate modes of recognition for native substrates and the site of TEV protease self-cleavage are proposed.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University College London, Gower Street, London, WC1E 6BT, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Nuclear inclusion protein A AB242Tobacco etch virusMutation(s): 1 
EC: 3.4.22.44 (PDB Primary Data), 3.4 (UniProt), 3.4.22.45 (UniProt), 3.6.4 (UniProt), 2.7.7.48 (UniProt)
Find proteins for P04517 (Tobacco etch virus)
Explore P04517 
Go to UniProtKB:  P04517
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BME
Query on BME

Download Ideal Coordinates CCD File 
A, B
BETA-MERCAPTOETHANOL
C2 H6 O S
DGVVWUTYPXICAM-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.302 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.240 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 146.587α = 90
b = 41.544β = 108.95
c = 96.063γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
CNSrefinement
HKL-2000data reduction
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-02
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance