1M6X

Flpe-Holliday Junction Complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.239 
  • R-Value Observed: 0.239 

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This is version 1.3 of the entry. See complete history. 


Literature

Structural Plasticity of the Flp-Holliday Junction Complex

Conway, A.B., Chen, Y., Rice, P.A.

(2003) J Mol Biol 326: 425-434

  • DOI: 10.1016/s0022-2836(02)01370-0
  • Primary Citation of Related Structures:  
    1M6X

  • PubMed Abstract: 

    • The Flp recombinase, a member of the lambda integrase or tyrosine-based family of site-specific recombinases, is an interesting example of an enzyme whose catalytic activity is regulated by protein-protein contacts. It exhibits half-of-the-sites activity throughout its catalytic cycle ...

    The Flp recombinase, a member of the lambda integrase or tyrosine-based family of site-specific recombinases, is an interesting example of an enzyme whose catalytic activity is regulated by protein-protein contacts. It exhibits half-of-the-sites activity throughout its catalytic cycle. Flp is unique among these recombinases, in that it assembles each active site in trans through the interaction of two protein monomers within the catalytic tetramer, with isomerization of interacting pairs being essential to complete a full reaction. We report here the structure of a DNA-bound tetramer of Flpe, a variant of Flp that is more active at 37 degrees C than the wild-type recombinase. This new structure includes the first observation of a tyrosine recombinase with an invading 5'-OH poised to attack the covalent phosphotyrosine residue. Comparison with the previously determined Flp structure highlights differences in flexibility between the two types of protein-protein interfaces in the tetramer and better defines the range of conformations available to this remarkably flexible complex. These results suggest a steric occlusion model for enforcement of half-of-the-sites activity.

    Organizational Affiliation: 

    Department of Biochemistry and Molecular Biology, University of Chicago, 920 E 58th Street CLSC 221, Chicago, IL 60637, USA.



Macromolecules

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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Flp recombinaseG [auth A],
H [auth B]		423Saccharomyces cerevisiaeMutation(s): 4 
Gene Names: FLP1
UniProt
Find proteins for P03870 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P03870 
Go to UniProtKB:  P03870
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03870
Protein Feature View
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Flp recombinaseI [auth C],
J [auth D]		423Saccharomyces cerevisiaeMutation(s): 5 
Gene Names: FLP1
UniProt
Find proteins for P03870 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P03870 
Go to UniProtKB:  P03870
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03870
Protein Feature View
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganismImage
Symmetrized FRT siteA [auth E],
C [auth F]		13N/A
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsLengthOrganismImage
Symmetrized FRT siteB [auth I],
D [auth J]		20N/A
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsLengthOrganismImage
Symmetrized FRT siteE [auth G],
F [auth H]		33N/A
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR		I [auth C],
J [auth D]		L-PEPTIDE LINKINGC9 H12 N O6 PTYR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.239 
  • R-Value Observed: 0.239 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.779α = 90
b = 116.511β = 97.26
c = 142.425γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
EPMRphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-02-04
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2021-10-27
    Changes: Database references, Derived calculations