1N1H

Initiation complex of polymerase lambda3 from reovirus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

RNA Synthesis in a Cage--Structural Studies of Reovirus Polymerase [lambda] 3

Tao, Y.Farsetta, D.L.Nibert, M.L.Harrison, S.C.

(2002) Cell 111: 733-745

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The reovirus polymerase and those of other dsRNA viruses function within the confines of a protein capsid to transcribe the tightly packed dsRNA genome segments. The crystal structure of the reovirus polymerase, lambda3, determined at 2.5 A resolutio ...

    The reovirus polymerase and those of other dsRNA viruses function within the confines of a protein capsid to transcribe the tightly packed dsRNA genome segments. The crystal structure of the reovirus polymerase, lambda3, determined at 2.5 A resolution, shows a fingers-palm-thumb core, similar to those of other viral polymerases, surrounded by major N- and C-terminal elaborations, which create a cage-like structure, with four channels leading to the catalytic site. This "caged" polymerase has allowed us to visualize the results of several rounds of RNA polymerization directly in the crystals. A 5' cap binding site on the surface of lambda3 suggests a template retention mechanism by which attachment of the 5' end of the plus-sense strand facilitates insertion of the 3' end of the minus-sense strand into the template channel.


    Organizational Affiliation

    Howard Hughes Medical Institute, Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Minor core protein lambda 3
A
1267Reovirus type 3 (strain Dearing)Mutation(s): 0 
Gene Names: L1
EC: 2.7.7.48
Find proteins for P0CK31 (Reovirus type 3 (strain Dearing))
Go to UniProtKB:  P0CK31
Entity ID: 1
MoleculeChainsLengthOrganism
5'-R(*AP*UP*UP*AP*GP*C)-3'B6N/A
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

Download SDF File 
Download CCD File 
A
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
MN
Query on MN

Download SDF File 
Download CCD File 
A
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
G7M
Query on G7M

Download SDF File 
Download CCD File 
A
N7-METHYL-GUANOSINE-5'-MONOPHOSPHATE
C11 H17 N5 O8 P
AOKQNZVJJXPUQA-KQYNXXCUSA-O
 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
GH3
Query on GH3

Download SDF File 
Download CCD File 
A
3'-DEOXY-GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
QGYIFQKZZSSUCR-OBXARNEKSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.216 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 70.883α = 90.00
b = 85.013β = 90.00
c = 249.294γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSphasing
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-12-25
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance