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

  • 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, ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ABC transporter ATP-binding protein uup
A
108Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: uup (ycbH, ycbI)
Find proteins for P43672 (Escherichia coli (strain K12))
Go to UniProtKB:  P43672
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 or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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