3KML

Circular Permutant of the Tobacco Mosaic Virus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.011 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.239 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Nanoscale protein assemblies from a circular permutant of the tobacco mosaic virus.

Dedeo, M.T.Duderstadt, K.E.Berger, J.M.Francis, M.B.

(2010) Nano Lett. 10: 181-186

  • DOI: 10.1021/nl9032395

  • PubMed Abstract: 
  • The protein coat of the tobacco mosaic virus (TMV) has been explored extensively for the construction of nanoscale architectures. In previous work, we have reported efficient TMV-based light harvesting systems bearing chromophores in a hollow channel ...

    The protein coat of the tobacco mosaic virus (TMV) has been explored extensively for the construction of nanoscale architectures. In previous work, we have reported efficient TMV-based light harvesting systems bearing chromophores in a hollow channel of the assembled protein. We have also reported an N-terminal transamination/oximation method that could be used to attach electrodes and catalytic groups to the exterior surface of the rods. To complement these techniques, we report herein a new circular permutant of the TMV capsid protein that repositions the N- and C-termini to the center of the assemblies. This protein can be produced in very high yield through E. coli expression and self-assembles into light harvesting rods that are much like those assembled from the wild-type protein. However, the disks formed from the permutant structure are stable over a significantly wider pH range, greatly improving the practicality of this assembled form for materials applications. The new position of the N-terminus allows functional groups to be installed in the inner pore of the disks, affording geometries reminiscent of natural photosynthetic systems. The permutant also shows the ability to coassemble with regular monomers, allowing the future generation of multicomponent rod structures that are modified on the exterior and interior surfaces, as well as in the internal RNA channel.


    Organizational Affiliation

    Department of Chemistry, University of California-Berkeley, Berkeley, CA 94720-1460, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Coat protein
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q
161Tobacco mosaic virus (strain vulgare)Mutation(s): 1 
Gene Names: CP
Find proteins for P69687 (Tobacco mosaic virus (strain vulgare))
Go to Gene View: CP
Go to UniProtKB:  P69687
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.011 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.239 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 220.835α = 90.00
b = 177.175β = 99.55
c = 102.801γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
HKL-2000data reduction
PHENIXphasing
Blu-Icedata collection
PHENIXmodel building
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-02-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-08-02
    Type: Refinement description, Source and taxonomy