2LW1

The C-terminal domain of the Uup protein is a DNA-binding coiled coil motif


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 400 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The C-terminal domain of the Uup protein is a DNA-binding coiled coil motif.

Carlier, L.Haase, A.S.Burgos Zepeda, M.Y.Dassa, E.Lequin, O.

(2012) J Struct Biol 180: 577-584

  • DOI: 10.1016/j.jsb.2012.09.005
  • Primary Citation of Related Structures:  
    2LW1

  • PubMed Abstract: 
  • The bacterial Uup protein belongs to the REG subfamily of soluble ATP-binding cassette (ABC) ATPases, and is implicated in precise excision of transposons. In Escherichia coli, the uup gene encodes a 72 kDa polypeptide that comprises two ABC domains, separated by a linker region, and a 12kDa C-terminal domain (CTD) ...

    The bacterial Uup protein belongs to the REG subfamily of soluble ATP-binding cassette (ABC) ATPases, and is implicated in precise excision of transposons. In Escherichia coli, the uup gene encodes a 72 kDa polypeptide that comprises two ABC domains, separated by a linker region, and a 12kDa C-terminal domain (CTD). Uup binds double-stranded DNA with no sequence specificity, and we previously demonstrated that the CTD domain is a crucial region that participates in DNA-binding activity. We report herein the NMR structure of Uup CTD, consisting of an intramolecular antiparallel two-stranded coiled coil motif. Structural comparison with analogous coiled coil domains reveals that Uup CTD contains an atypical 3(10)-helix in the α-hairpin region that contributes to the hydrophobic core. Using NMR titration experiments, we identified residues of the CTD domain involved in the binding to double-stranded DNA. These residues are located on two opposite surfaces at the base of the coiled coil, formed by the N- and C-terminal extremities, where a strictly conserved proline residue induces an overwinding of the coiled coil. Finally, preliminary analysis of NMR spectra recorded on distinct Uup constructs precludes a fully flexible positioning of the CTD domain in full-length Uup. These structural data are the first reported for a non-ATPase domain within ABC REG subfamily.


    Related Citations: 
    • Secondary structure and NMR resonance assignments of the C-terminal DNA-binding domain of Uup protein.
      Carlier, L., Haase, A.S., Burgos Zepeda, M.Y., Dassa, E., Lequin, O.
      (2012) Biomol NMR Assign --: --

    Organizational Affiliation

    UPMC Université Paris 06, Laboratoire des BioMolécules UMR 7203, 4 place Jussieu, 75005 Paris, France. ludovic.carlier@upmc.fr



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ABC transporter ATP-binding protein uupA108Escherichia coli K-12Mutation(s): 0 
Gene Names: uupycbHycbIb0949JW0932
EC: 3.6.1
UniProt
Find proteins for P43672 (Escherichia coli (strain K12))
Explore P43672 
Go to UniProtKB:  P43672
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP43672
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 400 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2LW1 Olderado

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-09-19
    Type: Initial release
  • Version 1.1: 2012-10-03
    Changes: Database references
  • Version 1.2: 2012-11-28
    Changes: Database references
  • Version 1.3: 2016-04-27
    Changes: Structure summary