1UON

REOVIRUS POLYMERASE LAMBDA-3 LOCALIZED BY ELECTRON CRYOMICROSCOPY OF VIRIONS AT 7.6-A RESOLUTION


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.6 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Reovirus Polymerase Lambda3 Localized by Cryo-Electron Microscopy of Virions at a Resolution of 7.6 A

Zhang, X.Walker, S.B.Chipman, P.R.Nibert, M.L.Baker, T.S.

(2003) Nat.Struct.Mol.Biol. 10: 1011

  • DOI: 10.1038/nsb1009

  • PubMed Abstract: 
  • Reovirus is an icosahedral, double-stranded (ds) RNA virus that uses viral polymerases packaged within the viral core to transcribe its ten distinct plus-strand RNAs. To localize these polymerases, the structure of the reovirion was refined to a reso ...

    Reovirus is an icosahedral, double-stranded (ds) RNA virus that uses viral polymerases packaged within the viral core to transcribe its ten distinct plus-strand RNAs. To localize these polymerases, the structure of the reovirion was refined to a resolution of 7.6 A by cryo-electron microscopy (cryo-EM) and three-dimensional (3D) image reconstruction. X-ray crystal models of reovirus proteins, including polymerase lambda 3, were then fitted into the density map. Each copy of lambda 3 was found anchored to the inner surface of the icosahedral core shell, making major contacts with three molecules of shell protein lambda 1 and overlapping, but not centering on, a five-fold axis. The overlap explains why only one copy of lambda 3 is bound per vertex. lambda 3 is furthermore oriented with its transcript exit channel facing a small channel through the lambda 1 shell, suggesting how the nascent RNA is passed into the large external cavity of the pentameric capping enzyme complex formed by protein lambda 2.


    Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MINOR CORE PROTEIN LAMBDA 3
A
1267Reovirus sp.N/A
Find proteins for Q8V1A3 (Reovirus sp.)
Go to UniProtKB:  Q8V1A3
Entity ID: 2
MoleculeChainsLengthOrganism
5'-R(*GP*GP*GP*GP*GP*)-3'B5N/A
Entity ID: 3
MoleculeChainsLengthOrganism
5'-R(*UP*AP*GP*CP*CP*CP*CP*CP*)-3'C8N/A
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download SDF File 
Download CCD File 
A
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
CH1
Query on CH1

Download SDF File 
Download CCD File 
A
3'-DEOXY-CYTIDINE-5'-TRIPHOSPHATE
C9 H16 N3 O13 P3
CHKFLBOLYREYDO-SHYZEUOFSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.6 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-11-13
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance