1KSY

Crystal Structures of Two Intermediates in the Assembly of the Papillomavirus Replication Initiation Complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.316 
  • R-Value Work: 0.277 

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This is version 1.2 of the entry. See complete history. 


Literature

Crystal structures of two intermediates in the assembly of the papillomavirus replication initiation complex.

Enemark, E.J., Stenlund, A., Joshua-Tor, L.

(2002) EMBO J 21: 1487-1496

  • DOI: 10.1093/emboj/21.6.1487
  • Primary Citation of Related Structures:  
    1KSX, 1KSY

  • PubMed Abstract: 

    • Initiation of DNA replication of the papillomavirus genome is a multi-step process involving the sequential loading of viral E1 protein subunits onto the origin of replication. Here we have captured structural snapshots of two sequential steps in the assembly process ...

    Initiation of DNA replication of the papillomavirus genome is a multi-step process involving the sequential loading of viral E1 protein subunits onto the origin of replication. Here we have captured structural snapshots of two sequential steps in the assembly process. Initially, an E1 dimer binds to adjacent major grooves on one face of the double helix; a second dimer then binds to another face of the helix. Each E1 monomer has two DNA-binding modules: a DNA-binding loop, which binds to one DNA strand and a DNA-binding helix, which binds to the opposite strand. The nature of DNA binding suggests a mechanism for the transition between double- and single-stranded DNA binding that is implicit in the progression to a functional helicase.

    Organizational Affiliation: 

    W.M.Keck Structural Biology Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA.



Macromolecules

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
REPLICATION PROTEIN E1D [auth A],
E [auth B],
F [auth C]		154Bovine papillomavirusMutation(s): 0 
EC: 3.6.4.12
UniProt
Find proteins for P03116 (Bovine papillomavirus type 1)
Explore P03116 
Go to UniProtKB:  P03116
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03116
Protein Feature View
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganismImage
E1 Recognition Sequence, Strand 1A [auth D],
B [auth E]		21N/A
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsLengthOrganismImage
E1 Recognition Sequence, Strand 2C [auth F]21N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.316 
  • R-Value Work: 0.277 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 149.111α = 90
b = 110.6β = 116.85
c = 75.084γ = 90
Software Package:
Software NamePurpose
AMoREphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-03-15
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance