4CYC

CRYSTAL STRUCTURE OF A UBX-EXD-DNA COMPLEX INCLUDING THE HEXAPEPTIDE AND UBDA MOTIFS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.36 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.213 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

A Flexible Extension of the Drosophila Ultrabithorax Homeodomain Defines a Novel Hox/Pbc Interaction Mode.

Foos, N.Maurel-Zaffran, C.Mate, M.J.Vincentelli, R.Hainaut, M.Berenger, H.Pradel, J.Saurin, A.J.Ortiz-Lombardia, M.Graba, Y.

(2015) Structure 23: 270

  • DOI: 10.1016/j.str.2014.12.011
  • Primary Citation of Related Structures:  
    4UUS, 4UUT, 4CYC

  • PubMed Abstract: 
  • The patterning function of Hox proteins relies on assembling protein complexes with PBC proteins, which often involves a protein motif found in most Hox proteins, the so-called Hexapeptide (HX). Hox/PBC complexes likely gained functional diversity by acquiring additional modes of interaction ...

    The patterning function of Hox proteins relies on assembling protein complexes with PBC proteins, which often involves a protein motif found in most Hox proteins, the so-called Hexapeptide (HX). Hox/PBC complexes likely gained functional diversity by acquiring additional modes of interaction. Here, we structurally characterize the first HX alternative interaction mode based on the paralogue-specific UbdA motif and further functionally validate structure-based predictions. The UbdA motif folds as a flexible extension of the homeodomain recognition helix and defines Hox/PBC contacts that occur, compared with those mediated by the HX motif, on the opposing side of the DNA double helix. This provides a new molecular facet to Hox/PBC complex assembly and suggests possible mechanisms for the diversification of Hox protein function.


    Organizational Affiliation

    Centre National de la Recherche Scientifique, Aix-Marseille Université, CNRS UMR 7288, IBDM, Parc Scientifique de Luminy, Case 907, 13288 Marseille Cedex 09, France. Electronic address: yacine.graba@univ-amu.fr.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HOMEOTIC PROTEIN ULTRABITHORAXA93Drosophila melanogasterMutation(s): 0 
Gene Names: UbxCG10388
UniProt
Find proteins for P83949 (Drosophila melanogaster)
Explore P83949 
Go to UniProtKB:  P83949
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HOMEOBOX PROTEIN EXTRADENTICLEB76Drosophila melanogasterMutation(s): 0 
Gene Names: exdCG8933
UniProt
Find proteins for P40427 (Drosophila melanogaster)
Explore P40427 
Go to UniProtKB:  P40427
Protein Feature View
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  • Reference Sequence
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  • Entity ID: 3
    MoleculeChainsLengthOrganismImage
    5'-D(*GP*TP*CP*GP*CP*CP*AP*TP*AP*AP*AP*TP*CP*AP*CP)-3'C15Drosophila melanogaster
    Protein Feature View
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    • Reference Sequence
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 4
      MoleculeChainsLengthOrganismImage
      5'-D(*AP*CP*GP*TP*GP*AP*TP*TP*TP*AP*TP*GP*GP*CP*GP)-3'D15Drosophila melanogaster
      Protein Feature View
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      • Reference Sequence
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 2.36 Å
      • R-Value Free: 0.227 
      • R-Value Work: 0.212 
      • R-Value Observed: 0.213 
      • Space Group: P 32 2 1
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 97.707α = 90
      b = 97.707β = 90
      c = 73.735γ = 120
      Software Package:
      Software NamePurpose
      BUSTERrefinement
      XDSdata reduction
      TRUNCATEdata scaling
      PHASERphasing

      Structure Validation

      View Full Validation Report




      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

      • Version 1.0: 2015-02-18
        Type: Initial release