5HXY

Crystal structure of XerA recombinase

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.191 

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This is version 1.1 of the entry. See complete history. 


Literature

Crystal structure of Thermoplasma acidophilum XerA recombinase shows large C-shape clamp conformation and cis-cleavage mode for nucleophilic tyrosine

Jo, C.H., Kim, J., Han, A.R., Park, S.Y., Hwang, K.Y., Nam, K.H.

(2016) FEBS Lett 590: 848-856

  • DOI: 10.1002/1873-3468.12109
  • Primary Citation of Related Structures:  
    5HXY

  • PubMed Abstract: 

    • Site-specific Xer recombination plays a pivotal role in reshuffling genetic information. Here, we report the 2.5 Å crystal structure of XerA from the archaean Thermoplasma acidophilum. Crystallographic data reveal a uniquely open conformational state, resulting in a C-shaped clamp with an angle of ~ 48° and a distance of 57 Å between the core-binding and the catalytic domains ...

    Site-specific Xer recombination plays a pivotal role in reshuffling genetic information. Here, we report the 2.5 Å crystal structure of XerA from the archaean Thermoplasma acidophilum. Crystallographic data reveal a uniquely open conformational state, resulting in a C-shaped clamp with an angle of ~ 48° and a distance of 57 Å between the core-binding and the catalytic domains. The catalytic nucleophile, Tyr264, is positioned in cis-cleavage mode by XerA's C-term tail that interacts with the CAT domain of a neighboring monomer without DNA substrate. Structural comparisons of tyrosine recombinases elucidate the dynamics of Xer recombinase.

    Organizational Affiliation: 

    Pohang Accelerator Laboratory, Pohang University of Science and Technology, Kyungbuk, Korea.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine recombinase XerA
A, B, C, D, E, F
A, B, C, D, E, F
317Thermoplasma acidophilum DSM 1728Mutation(s): 0 
Gene Names: xerA, Ta1314
UniProt
Find proteins for Q9HIM5 (Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165))
Explore Q9HIM5 
Go to UniProtKB:  Q9HIM5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9HIM5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.191 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 182.86α = 90
b = 105.968β = 110.01
c = 115.586γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data scaling
SOLVEphasing
RESOLVEmodel building
PDB_EXTRACTdata extraction

Structure Validation

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View more in-depth experimental data

Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-01-31 
  • Released Date: 2017-02-01 
    • Deposition Author(s): Hwang, K.Y., Nam, K.H.
Funding OrganizationLocationGrant Number
National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST)Korea, Republic OfNRF-2014R1A1A2059440
National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST)Korea, Republic OfNRF-2014R1212513

Revision History  (Full details and data files)

  • Version 1.0: 2017-02-01
    Type: Initial release
  • Version 1.1: 2020-02-19
    Changes: Data collection