1WAC

Back-priming mode of Phi6 RNA-dependent RNA polymerase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.241 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Back-Priming Mode of Phi6 RNA-Dependent RNA Polymerase

Laurila, M.R.L.Salgado, P.S.Stuart, D.I.Grimes, J.M.Bamford, D.H.

(2005) J.Gen.Virol. 86: 521

  • DOI: 10.1099/vir.0.80492-0

  • PubMed Abstract: 
  • The RNA-dependent RNA polymerase of the double-stranded RNA bacteriophage phi6 is capable of primer-independent initiation, as are many RNA polymerases. The structure of this polymerase revealed an initiation platform, composed of a loop in the C-ter ...

    The RNA-dependent RNA polymerase of the double-stranded RNA bacteriophage phi6 is capable of primer-independent initiation, as are many RNA polymerases. The structure of this polymerase revealed an initiation platform, composed of a loop in the C-terminal domain (QYKW, aa 629-632), that was essential for de novo initiation. A similar element has been identified in hepatitis C virus RNA-dependent RNA polymerase. Biochemical studies have addressed the role of this platform, revealing that a mutant version can utilize a back-priming initiation mechanism, where the 3' terminus of the template adopts a hairpin-like conformation. Here, the mechanism of back-primed initiation is studied further by biochemical and structural methods.


    Organizational Affiliation

    Institute of Biotechnology and Department of Biological and Environmental Sciences, Viikki Biocenter, PO Box 56 (Viikinkaari 5), 00014 University of Helsinki, Finland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
P2 PROTEIN
A, B, C
662Pseudomonas phage phi6Mutation(s): 1 
Gene Names: P2
EC: 2.7.7.48
Find proteins for P11124 (Pseudomonas phage phi6)
Go to UniProtKB:  P11124
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.241 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 76.579α = 90.00
b = 105.851β = 98.86
c = 157.712γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
DENZOdata reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-01-27
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance