1MWH

REOVIRUS POLYMERASE LAMBDA3 BOUND TO MRNA CAP ANALOG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.209 

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 lambda3

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

(2002) Cell 111: 733-745

  • Primary Citation of Related Structures:  1MUK, 1N1H, 1N35, 1N38

  • 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: 1
MoleculeChainsSequence LengthOrganismDetails
MINOR CORE PROTEIN LAMBDA 3
A
1267Reovirus type 3 (strain Dearing)Gene Names: L1
EC: 2.7.7.48
Find proteins for P0CK31 (Reovirus type 3 (strain Dearing))
Go to UniProtKB:  P0CK31
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
GTG
Query on GTG

Download SDF File 
Download CCD File 
A
7-METHYL-GUANOSINE-5'-TRIPHOSPHATE-5'-GUANOSINE
MRNA CAP ANALOG N7-METHYL GPPPG
C21 H30 N10 O18 P3
FHHZHGZBHYYWTG-INFSMZHSSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 70.891α = 90.00
b = 84.944β = 90.00
c = 249.246γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
CNSphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-12-18
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance