3BVP

Crystal Structure of the N-terminal Catalytic Domain of TP901-1 Integrase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.201 

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This is version 1.3 of the entry. See complete history


Literature

Tetrameric structure of a serine integrase catalytic domain.

Yuan, P.Gupta, K.Van Duyne, G.D.

(2008) Structure 16: 1275-1286

  • DOI: 10.1016/j.str.2008.04.018
  • Primary Citation of Related Structures:  
    3BVP

  • PubMed Abstract: 
  • The serine integrases have recently emerged as powerful new chromosome engineering tools in various organisms and show promise for therapeutic use in human cells. The serine integrases are structurally and mechanistically unrelated to the bacteriophage lambda integrase but share a similar catalytic domain with the resolvase/invertase enzymes typified by the resolvase proteins from transposons Tn3 and gammadelta ...

    The serine integrases have recently emerged as powerful new chromosome engineering tools in various organisms and show promise for therapeutic use in human cells. The serine integrases are structurally and mechanistically unrelated to the bacteriophage lambda integrase but share a similar catalytic domain with the resolvase/invertase enzymes typified by the resolvase proteins from transposons Tn3 and gammadelta. Here we report the crystal structure and solution properties of the catalytic domain from bacteriophage TP901-1 integrase. The protein is a dimer in solution but crystallizes as a tetramer that is closely related in overall architecture to structures of activated gammadelta-resolvase mutants. The ability of the integrase tetramer to explain biochemical experiments performed in the resolvase and invertase systems suggests that the TP901 integrase tetramer represents a unique intermediate on the recombination pathway that is shared within the serine recombinase superfamily.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TP901-1 IntegraseA, B138Lactococcus phage TP901-1Mutation(s): 0 
Gene Names: int
Find proteins for Q38184 (Lactococcus phage TP901-1)
Explore Q38184 
Go to UniProtKB:  Q38184
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.201 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.229α = 90
b = 67.229β = 90
c = 174.565γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing
RESOLVEphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-08-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2012-03-21
    Changes: Database references
  • Version 1.3: 2017-10-25
    Changes: Refinement description