3S4G

Low Resolution Structure of STNV complexed with RNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 6 Å
  • R-Value Free: 0.430 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Construction and crystal structure of recombinant STNV capsids.

Lane, S.W.Dennis, C.A.Lane, C.L.Trinh, C.H.Rizkallah, P.J.Stockley, P.G.Phillips, S.E.

(2011) J.Mol.Biol. 413: 41-50

  • DOI: 10.1016/j.jmb.2011.07.062
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • A codon-optimised gene has been expressed in Escherichia coli to produce the coat protein (CP) of the Satellite Tobacco Necrosis Virus. This protein assembles in vivo into capsids closely resembling those of the T=1 wild-type virus. These virus-like ...

    A codon-optimised gene has been expressed in Escherichia coli to produce the coat protein (CP) of the Satellite Tobacco Necrosis Virus. This protein assembles in vivo into capsids closely resembling those of the T=1 wild-type virus. These virus-like particles (VLPs) package the recombinant mRNA transcript and can be disassembled and reassembled using different buffer conditions. The X-ray crystal structure of the VLP has been solved and refined at 1.4 Å resolution and shown to be very similar to that of wild-type Satellite Tobacco Necrosis Virus, except that icosahedral symmetry constraints could be removed to reveal differences between subunits, presumably owing to crystal packing. An additional low-resolution X-ray crystal structure determination revealed well-ordered RNA fragments lodged near the inside surface of the capsid, close to basic clusters formed by the N-terminal helices that project into the interior of the particle. The RNA consists of multiple copies of a 3-bp helical stem, with a single unpaired base at the 3' end, and probably consists of a number of short stem-loops where the loop region is disordered. The arrangement of the RNA is different from that observed in other satellite viruses.


    Organizational Affiliation

    Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Coat protein
A
196Satellite tobacco necrosis virus 1Mutation(s): 0 
Find proteins for P03606 (Satellite tobacco necrosis virus 1)
Go to UniProtKB:  P03606
Entity ID: 2
MoleculeChainsLengthOrganism
RNA (5'-R(P*AP*AP*A)-3')B3N/A
Entity ID: 3
MoleculeChainsLengthOrganism
RNA (5'-R(P*UP*UP*UP*U)-3')C4N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 6 Å
  • R-Value Free: 0.430 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 313.146α = 90.00
b = 302.121β = 93.82
c = 183.385γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
CNSrefinement
ADSCdata collection
FFTmodel building
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-08-03
    Type: Initial release
  • Version 1.1: 2011-10-05
    Type: Database references
  • Version 1.2: 2012-05-23
    Type: Database references
  • Version 1.3: 2017-11-08
    Type: Refinement description