1B69

THE SOLUTION STRUCTURE OF TN916 INTEGRASE N-TERMINAL DOMAIN/DNA COMPLEX


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

NMR structure of the Tn916 integrase-DNA complex.

Wojciak, J.M.Connolly, K.M.Clubb, R.T.

(1999) Nat Struct Biol 6: 366-373

  • DOI: 10.1038/7603
  • Primary Citation of Related Structures:  
    1TN9, 1B69

  • PubMed Abstract: 
  • The integrase protein catalyzes the excision and integration of the Tn916 conjugative transposon, a promiscuous genetic element that spreads antibiotic resistance in pathogenic bacteria. The solution structure of the N-terminal domain of the Tn916 integrase protein bound to its DNA-binding site within the transposon arm has been determined ...

    The integrase protein catalyzes the excision and integration of the Tn916 conjugative transposon, a promiscuous genetic element that spreads antibiotic resistance in pathogenic bacteria. The solution structure of the N-terminal domain of the Tn916 integrase protein bound to its DNA-binding site within the transposon arm has been determined. The structure reveals an interesting mode of DNA recognition, in which the face of a three-stranded antiparallel beta-sheet is positioned within the major groove. A comparison to the structure of the homing endonuclease I-Ppol-DNA complex suggests that the three-stranded sheet may represent a new DNA-binding motif whose residue composition and position within the major groove are varied to alter specificity. The structure also provides insights into the mechanism of conjugative transposition. The DNA in the complex is bent approximately 35 degrees and may, together with potential interactions between bound integrase proteins at directly repeated sites, significantly bend the arms of the transposon.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of California, Los Angeles 90095, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (INTEGRASE)C [auth A]69Enterococcus faecalisMutation(s): 1 
Gene Names: Int-Tn
Find proteins for P22886 (Enterococcus faecalis)
Explore P22886 
Go to UniProtKB:  P22886
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*GP*AP*GP*TP*AP*GP*TP*AP*AP*AP*TP*TP*C)-3')A [auth B]13synthetic construct
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      DNA (5'-D(*GP*AP*AP*TP*TP*TP*AP*CP*TP*AP*CP*TP*C)-3')B [auth C]13synthetic construct
      Small Molecules
      External Ligand Annotations 
      IDBinding Affinity (Sequence Identity %)
      DNAKd :  151   nM  PDBBind
      Experimental Data & Validation

      Experimental Data

      • Method: SOLUTION NMR
      • Conformers Calculated: 100 
      • Conformers Submitted: 
      • Selection Criteria: LEAST RESTRAINT VIOLATION 
      • OLDERADO: 1B69 Olderado

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

      • Version 1.0: 1999-09-29
        Type: Initial release
      • Version 1.1: 2008-04-27
        Changes: Version format compliance
      • Version 1.2: 2011-07-13
        Changes: Version format compliance
      • Version 1.3: 2018-03-14
        Changes: Database references, Derived calculations
      • Version 2.0: 2019-10-16
        Changes: Atomic model, Data collection, Derived calculations, Source and taxonomy