3BVP

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


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

  • 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 bacteriopha ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TP901-1 Integrase
A, B
138Lactococcus phage TP901-1Mutation(s): 0 
Gene Names: int
Find proteins for Q38184 (Lactococcus phage TP901-1)
Go to UniProtKB:  Q38184
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.198 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 67.229α = 90.00
b = 67.229β = 90.00
c = 174.565γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
REFMACrefinement
PDB_EXTRACTdata extraction
RESOLVEphasing
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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