5C6K

Bacteriophage P2 integrase catalytic domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.173 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Crystal structure of the bacteriophage P2 integrase catalytic domain.

Skaar, K.Claesson, M.Odegrip, R.Hogbom, M.Haggard-Ljungquist, E.Stenmark, P.

(2015) FEBS Lett 589: 3556-3563

  • DOI: 10.1016/j.febslet.2015.09.026
  • Primary Citation of Related Structures:  
    5DOR, 5C6K

  • PubMed Abstract: 
  • Bacteriophage P2 is a temperate phage capable of integrating its DNA into the host genome by site-specific recombination upon lysogenization. Integration and excision of the phage genome requires P2 integrase, which performs recognition, cleavage and joining of DNA during these processes ...

    Bacteriophage P2 is a temperate phage capable of integrating its DNA into the host genome by site-specific recombination upon lysogenization. Integration and excision of the phage genome requires P2 integrase, which performs recognition, cleavage and joining of DNA during these processes. This work presents the high-resolution crystal structure of the catalytic domain of P2 integrase, and analysis of the structure-function relationship of several previously identified non-functional P2 integrase mutants. The DNA binding area is characterized by a large positively charged patch, harboring key residues. The structure reveals potential for large dimer flexibility, likely essential for rearrangement of DNA strands upon integration and excision of the phage DNA.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden. Electronic address: stenmark@dbb.su.se.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
IntegraseA, B292Escherichia virus P2Mutation(s): 0 
Gene Names: int
EC: 2.7.7 (UniProt), 3.1 (UniProt)
UniProt
Find proteins for P36932 (Escherichia phage P2)
Explore P36932 
Go to UniProtKB:  P36932
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.173 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 215.004α = 90
b = 54.42β = 97.33
c = 38.61γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Aimlessdata scaling
PHASERphasing
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Swedish Research CouncilSweden2010-5200
Swedish Research CouncilSweden2014-5667
Carl Tryggers FoundationSweden--

Revision History  (Full details and data files)

  • Version 1.0: 2015-10-21
    Type: Initial release
  • Version 1.1: 2015-12-02
    Changes: Database references