2VLA

Crystal structure of restriction endonuclease BpuJI recognition domain in complex with cognate DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å
  • R-Value Free: 0.166 
  • R-Value Work: 0.138 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Recognition Domain of the Bpuji Restriction Endonuclease in Complex with Cognate DNA at 1.3-A Resolution.

Sukackaite, R.Grazulis, S.Bochtler, M.Siksnys, V.

(2008) J.Mol.Biol. 378: 1084

  • DOI: 10.1016/j.jmb.2008.03.041

  • PubMed Abstract: 
  • Type IIS restriction endonucleases recognize asymmetric DNA sequences and cleave both DNA strands at fixed positions downstream of the recognition site. The restriction endonuclease BpuJI recognizes the asymmetric sequence 5'-CCCGT; however, it cuts ...

    Type IIS restriction endonucleases recognize asymmetric DNA sequences and cleave both DNA strands at fixed positions downstream of the recognition site. The restriction endonuclease BpuJI recognizes the asymmetric sequence 5'-CCCGT; however, it cuts at multiple sites in the vicinity of the target sequence. BpuJI consists of two physically separate domains, with catalytic and dimerization functions in the C-terminal domain and DNA recognition functions in the N-terminal domain. Here we report the crystal structure of the BpuJI recognition domain bound to cognate DNA at 1.3-A resolution. This region folds into two winged-helix subdomains, D1 and D2, interspaced by the DL subdomain. The D1 and D2 subdomains of BpuJI share structural similarity with the similar subdomains of the FokI DNA-binding domain; however, their orientations in protein-DNA complexes are different. Recognition of the 5'-CCCGT target sequence is achieved by BpuJI through the major groove contacts of amino acid residues located on both the helix-turn-helix motifs and the N-terminal arm. The role of these interactions in DNA recognition is also corroborated by mutational analysis.


    Organizational Affiliation

    Institute of Biotechnology, Graiciuno 8, 02241 Vilnius, Lithuania.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RESTRICTION ENDONUCLEASE R.BPUJI
A
285Bacillus pumilusGene Names: bpuJIR
Find proteins for A3FMN7 (Bacillus pumilus)
Go to UniProtKB:  A3FMN7
Entity ID: 2
MoleculeChainsLengthOrganism
5'-D(*GP*GP*TP*AP*CP*CP*CP*GP*TP*GP *GP*A)-3'L12N/A
Entity ID: 3
MoleculeChainsLengthOrganism
5'-D(*TP*CP*CP*AP*CP*GP*GP*GP*TP*AP *CP*C)-3'M12N/A
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

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Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
PG6
Query on PG6

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Download CCD File 
A
1-(2-METHOXY-ETHOXY)-2-{2-[2-(2-METHOXY-ETHOXY]-ETHOXY}-ETHANE
C12 H26 O6
DMDPGPKXQDIQQG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å
  • R-Value Free: 0.166 
  • R-Value Work: 0.138 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 56.292α = 90.00
b = 167.513β = 90.00
c = 43.846γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
MLPHAREphasing
SCALAdata scaling
REFMACrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-05-06
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance