1CRX

CRE RECOMBINASE/DNA COMPLEX REACTION INTERMEDIATE I


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.201 

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This is version 1.2 of the entry. See complete history


Literature

Structure of Cre recombinase complexed with DNA in a site-specific recombination synapse.

Guo, F.Gopaul, D.N.van Duyne, G.D.

(1997) Nature 389: 40-46

  • DOI: 10.1038/37925
  • Primary Citation of Related Structures:  
    1CRX

  • PubMed Abstract: 
  • During site-specific DNA recombination, which brings about genetic rearrangement in processes such as viral integration and excision and chromosomal segregation, recombinase enzymes recognize specific DNA sequences and catalyse the reciprocal exchange of DNA strands between these sites ...

    During site-specific DNA recombination, which brings about genetic rearrangement in processes such as viral integration and excision and chromosomal segregation, recombinase enzymes recognize specific DNA sequences and catalyse the reciprocal exchange of DNA strands between these sites. The bacteriophage recombinase Cre catalyses site-specific recombination between two 34-base-pair loxP sites. The crystal structure at 2.4 A resolution of Cre bound to a loxP substrate reveals an intermediate in the recombination reaction, in which a Cre molecule has cleaved the substrate to form a covalent 3'-phosphotyrosine linkage with the DNA. Four recombinases and two loxP sites form a synapsed structure in which the DNA resembles models of four-way Holliday-Junction intermediates. The Cre-loxP complex challenges models of site-specific recombination that require large changes in quaternary structure. Subtle allosteric changes at the carboxy termini of the Cre subunits may instead coordinate the cleavage and strand-exchange reactions.


    Organizational Affiliation

    Johnson Research Foundation and Department of Biochemistry and Biophysics, University of Pennsylvania School of Medicine, Philadelphia 19104, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
CRE RECOMBINASEE [auth A], F [auth B]322Escherichia virus P1Mutation(s): 0 
Gene Names: cre
UniProt
Find proteins for P06956 (Escherichia phage P1)
Explore P06956 
Go to UniProtKB:  P06956
Protein Feature View
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  • Reference Sequence
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  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*TP*AP*TP*AP*AP*CP*TP*TP*CP*GP*TP*AP*TP*AP*G)-3')A [auth C]15N/A
    Protein Feature View
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    • Reference Sequence
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      DNA (5'-D(*AP*TP*AP*TP*GP*CP*TP*AP*TP*AP*CP*GP*AP*AP*GP*TP*TP*AP*T)-3')B [auth D], D [auth F]19N/A
      Protein Feature View
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      • Reference Sequence
      • Find similar nucleic acids by:  Sequence   |   Structure
      • Entity ID: 3
        MoleculeChainsLengthOrganismImage
        DNA (5'-D(P*AP*TP*AP*AP*CP*TP*TP*CP*GP*TP*AP*TP*AP*GP*C)-3')C [auth E]15N/A
        Protein Feature View
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        • Reference Sequence
        Small Molecules
        Ligands 1 Unique
        IDChainsName / Formula / InChI Key2D Diagram3D Interactions
        PO4
        Query on PO4

        Download Ideal Coordinates CCD File 
        G [auth B]PHOSPHATE ION
        O4 P
        NBIIXXVUZAFLBC-UHFFFAOYSA-K
         Ligand Interaction
        Experimental Data & Validation

        Experimental Data

        • Method: X-RAY DIFFRACTION
        • Resolution: 2.40 Å
        • R-Value Free: 0.263 
        • R-Value Work: 0.201 
        • Space Group: C 2 2 21
        Unit Cell:
        Length ( Å )Angle ( ˚ )
        a = 107.7α = 90
        b = 121β = 90
        c = 180.4γ = 90
        Software Package:
        Software NamePurpose
        MLPHAREphasing
        LOCALmodel building
        X-PLORrefinement
        DENZOdata reduction
        SCALEPACKdata scaling
        LOCALphasing

        Structure Validation

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        Entry History 

        Deposition Data

        Revision History  (Full details and data files)

        • Version 1.0: 1998-10-14
          Type: Initial release
        • Version 1.1: 2008-05-22
          Changes: Version format compliance
        • Version 1.2: 2011-07-13
          Changes: Version format compliance