1CRX

CRE RECOMBINASE/DNA COMPLEX REACTION INTERMEDIATE I


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


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

  • 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 exchang ...

    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: Sequence  |  Structure


Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
CRE RECOMBINASE
A, B
322Enterobacteria phage P1Gene Names: cre
Find proteins for P06956 (Enterobacteria phage P1)
Go to UniProtKB:  P06956
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*AP*TP*AP*AP*CP*TP*TP*CP*GP*TP*AP*TP*AP*G)-3')C15N/A
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*AP*TP*AP*TP*GP*CP*TP*AP*TP*AP*CP*GP*AP*AP*GP*TP*TP*AP*T)-3')D,F19N/A
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (5'-D(P*AP*TP*AP*AP*CP*TP*TP*CP*GP*TP*AP*TP*AP*GP*C)-3')E15N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.201 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 107.700α = 90.00
b = 121.000β = 90.00
c = 180.400γ = 90.00
Software Package:
Software NamePurpose
MLPHAREphasing
X-PLORrefinement
SCALEPACKdata scaling
LOCALphasing
DENZOdata reduction
LOCALmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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