4FCY

Crystal structure of the bacteriophage Mu transpososome


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.706 Å
  • R-Value Free: 0.437 
  • R-Value Work: 0.393 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The Mu transpososome structure sheds light on DDE recombinase evolution.

Montano, S.P.Pigli, Y.Z.Rice, P.A.

(2012) Nature 491: 413-417

  • DOI: 10.1038/nature11602

  • PubMed Abstract: 
  • Studies of bacteriophage Mu transposition paved the way for understanding retroviral integration and V(D)J recombination as well as many other DNA transposition reactions. Here we report the structure of the Mu transpososome--Mu transposase (MuA) in ...

    Studies of bacteriophage Mu transposition paved the way for understanding retroviral integration and V(D)J recombination as well as many other DNA transposition reactions. Here we report the structure of the Mu transpososome--Mu transposase (MuA) in complex with bacteriophage DNA ends and target DNA--determined from data that extend anisotropically to 5.2 Å, 5.2 Å and 3.7 Å resolution, in conjunction with previously determined structures of individual domains. The highly intertwined structure illustrates why chemical activity depends on formation of the synaptic complex, and reveals that individual domains have different roles when bound to different sites. The structure also provides explanations for the increased stability of the final product complex and for its preferential recognition by the ATP-dependent unfoldase ClpX. Although MuA and many other recombinases share a structurally conserved 'DDE' catalytic domain, comparisons among the limited set of available complex structures indicate that some conserved features, such as catalysis in trans and target DNA bending, arose through convergent evolution because they are important for function.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois 60637, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transposase
A, B
529Enterobacteria phage MuGene Names: A
EC: 6.5.1.-, 3.1.22.-
Find proteins for P07636 (Enterobacteria phage Mu)
Go to UniProtKB:  P07636
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (68-MER)C68Escherichia virus Mu
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (13-MER)E13Escherichia virus Mu
Entity ID: 4
MoleculeChainsLengthOrganism
DNA (49-MER)D49Escherichia virus Mu
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.706 Å
  • R-Value Free: 0.437 
  • R-Value Work: 0.393 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 196.138α = 90.00
b = 196.138β = 90.00
c = 349.980γ = 90.00
Software Package:
Software NamePurpose
MLPHAREphasing
HKL-3000data scaling
HKL-3000data collection
PHENIXrefinement
HKL-3000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-11-07
    Type: Initial release
  • Version 1.1: 2013-01-09
    Type: Database references