1N1H

Initiation complex of polymerase lambda3 from reovirus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.216 
  • R-Value Observed: 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

  • DOI: 10.1016/s0092-8674(02)01110-8
  • Primary Citation of Related Structures:  
    1N1H, 1N35, 1N38, 1MUK, 1MWH

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Minor core protein lambda 3A1267Mammalian orthoreovirus 3 DearingMutation(s): 0 
Gene Names: L1
EC: 2.7.7.48
Find proteins for P0CK31 (Reovirus type 3 (strain Dearing))
Explore P0CK31 
Go to UniProtKB:  P0CK31
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    5'-R(*AP*UP*UP*AP*GP*C)-3'B6N/A
    Small Molecules
    Ligands 5 Unique
    IDChainsName / Formula / InChI Key2D Diagram3D Interactions
    GH3
    Query on GH3

    Download CCD File 
    A
    3'-DEOXY-GUANOSINE-5'-TRIPHOSPHATE
    C10 H16 N5 O13 P3
    QGYIFQKZZSSUCR-OBXARNEKSA-N
     Ligand Interaction
    CH1
    Query on CH1

    Download CCD File 
    A
    3'-DEOXY-CYTIDINE-5'-TRIPHOSPHATE
    C9 H16 N3 O13 P3
    CHKFLBOLYREYDO-SHYZEUOFSA-N
     Ligand Interaction
    GDP
    Query on GDP

    Download CCD File 
    A
    GUANOSINE-5'-DIPHOSPHATE
    C10 H15 N5 O11 P2
    QGWNDRXFNXRZMB-UUOKFMHZSA-N
     Ligand Interaction
    G7M
    Query on G7M

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

    Download CCD File 
    A
    MANGANESE (II) ION
    Mn
    WAEMQWOKJMHJLA-UHFFFAOYSA-N
     Ligand Interaction
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 2.80 Å
    • R-Value Free: 0.268 
    • R-Value Work: 0.216 
    • R-Value Observed: 0.216 
    • Space Group: P 21 21 21
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 70.883α = 90
    b = 85.013β = 90
    c = 249.294γ = 90
    Software Package:
    Software NamePurpose
    DENZOdata reduction
    SCALEPACKdata scaling
    CNSrefinement
    CNSphasing

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    Revision History 

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