4CWC

Structure of Rolling Circle Replication Initiator Protein (RepDE) from Staphylococcus aureus

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.219 

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


Literature

Structures of Replication Initiation Proteins from Staphylococcal Antibiotic Resistance Plasmids Reveal Protein Asymmetry and Flexibility are Necessary for Replication.

Carr, S.B., Phillips, S.E., Thomas, C.D.

(2016) Nucleic Acids Res 44: 2417

  • DOI: 10.1093/nar/gkv1539
  • Primary Citation of Related Structures:  
    4CIJ, 4CWC, 4CWE

  • PubMed Abstract: 

    • Antibiotic resistance in pathogenic bacteria is a continual threat to human health, often residing in extrachromosomal plasmid DNA. Plasmids of the pT181 family are widespread and confer various antibiotic resistances to Staphylococcus aureus. They replicate via a rolling circle mechanism that requires a multi-functional, plasmid-encoded replication protein to initiate replication, recruit a helicase to the site of initiation and terminate replication after DNA synthesis is complete ...

    Antibiotic resistance in pathogenic bacteria is a continual threat to human health, often residing in extrachromosomal plasmid DNA. Plasmids of the pT181 family are widespread and confer various antibiotic resistances to Staphylococcus aureus. They replicate via a rolling circle mechanism that requires a multi-functional, plasmid-encoded replication protein to initiate replication, recruit a helicase to the site of initiation and terminate replication after DNA synthesis is complete. We present the first atomic resolution structures of three such replication proteins that reveal distinct, functionally relevant conformations. The proteins possess a unique active site and have been shown to contain a catalytically essential metal ion that is bound in a manner distinct from that of any other rolling circle replication proteins. These structures are the first examples of the Rep_trans Pfam family providing insights into the replication of numerous antibiotic resistance plasmids from Gram-positive bacteria, Gram-negative phage and the mobilisation of DNA by conjugative transposons.

    Organizational Affiliation: 

    Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
REPLICATION INITIATION PROTEIN, REPLICATION INITIATION PROTEINA,
B [auth C]		281Staphylococcus aureusMutation(s): 0 
Gene Names: repD, repE
EC: 5.99.1.2
UniProt
Find proteins for P12053 (Staphylococcus aureus)
Explore P12053 
Go to UniProtKB:  P12053
Find proteins for P03065 (Staphylococcus aureus)
Explore P03065 
Go to UniProtKB:  P03065
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP12053P03065
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.219 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 240.3α = 90
b = 56.536β = 102.22
c = 62.357γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-04-15
    Type: Initial release
  • Version 1.1: 2016-02-03
    Changes: Database references
  • Version 1.2: 2016-03-30
    Changes: Database references