1FTZ

NUCLEAR MAGNETIC RESONANCE SOLUTION STRUCTURE OF THE FUSHI TARAZU HOMEODOMAIN FROM DROSOPHILA AND COMPARISON WITH THE ANTENNAPEDIA HOMEODOMAIN


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 

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This is version 1.2 of the entry. See complete history


Literature

Nuclear magnetic resonance solution structure of the fushi tarazu homeodomain from Drosophila and comparison with the Antennapedia homeodomain.

Qian, Y.Q.Furukubo-Tokunaga, K.Resendez-Perez, D.Muller, M.Gehring, W.J.Wuthrich, K.

(1994) J Mol Biol 238: 333-345

  • DOI: 10.1006/jmbi.1994.1296
  • Primary Citation of Related Structures:  
    1FTZ

  • PubMed Abstract: 
  • The three-dimensional structure of a recombinant 70-residue polypeptide containing the complete fushi tarazu (ftz) homeodomain from Drosophila melanogaster has been determined by nuclear magnetic resonance (NMR) spectroscopy in solution. On the basis of 915 upper distance constraints derived from nuclear Overhauser effects and 178 dihedral angle constraints, a group of 20 conformers representing the solution structure of the ftz homeodomain was computed with the program DIANA and energy-minimized with the program OPAL ...

    The three-dimensional structure of a recombinant 70-residue polypeptide containing the complete fushi tarazu (ftz) homeodomain from Drosophila melanogaster has been determined by nuclear magnetic resonance (NMR) spectroscopy in solution. On the basis of 915 upper distance constraints derived from nuclear Overhauser effects and 178 dihedral angle constraints, a group of 20 conformers representing the solution structure of the ftz homeodomain was computed with the program DIANA and energy-minimized with the program OPAL. The average of the pairwise root-mean-square deviations of the individual NMR conformers relative to the mean coordinates is 0.50 A for the backbone atoms N, C alpha and C' of residues 8 to 53. The molecular architecture includes three helices comprising the residues 10 to 21, 28 to 38, and 42 to 52, a loop of residues 22 to 27 between the helices I and II, and a turn of residues 39 to 41 linking the helices II and III. Comparisons with the structure of the mutant Antennapedia homeodomain with Cys39 replaced by Ser, Antp (C39S), shows that the two proteins contain the same molecular fold for residues 8 to 53, whereas the more flexible fourth helix comprising residues 53 to 59 in the Antp (C39S) homeodomain has no counterpart in the ftz homeodomain. Considering that important intermolecular interactions in the DNA complexes with the Antp, engrailed and Mat alpha 2 homeodomains involve the fourth helix, it was rather unexpected that the stability of the complex of ftz with the BS2 operator site was found to be comparable to or even somewhat higher than that of the Antp complex with BS2. Another difference is that the Antp homeodomain is more stable with respect to thermal denaturation, with denaturation temperatures at pH 4.8 of 27 degrees C and 48 degrees C, respectively, for ftz and Antp.


    Related Citations: 
    • The Structure of the Antennapedia Homeodomain Determined by NMR Spectroscopy in Solution: Comparison with Prokaryotic Repressors
      Qian, Y.-Q., Billeter, M., Otting, G., Muller, M., Gehring, W.J., Wuthrich, K.
      (1989) Cell 59: 573
    • Determination of the Three-Dimensional Structure of the Antennapedia Homeodomain from Drosophila in Solution by 1H Nuclear Magnetic Resonance Spectroscopy
      Billeter, M., Qian, Y.-Q., Otting, G., Muller, M., Gehring, W.J., Wuthrich, K.
      (1990) J Mol Biol 214: 183
    • Structure Determination of the Antp(C39->S) Homeodomain from Nuclear Magnetic Resonance Data in Solution Using a Novel Strategy for the Structure Calculation with the Programs Diana, Caliba, Habas and Glomsa
      Guntert, P., Qian, Y.-Q., Otting, G., Muller, M., Gehring, W.J., Wuthrich, K.
      (1991) J Mol Biol 217: 531

    Organizational Affiliation

    Institut für Molekularbiologie und Biophysik, ETH-Hönggerberg, Zürich, Switzerland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FUSHI TARAZU PROTEIN A70Drosophila melanogasterMutation(s): 0 
Gene Names: ftzCG2047
Find proteins for P02835 (Drosophila melanogaster)
Explore P02835 
Go to UniProtKB:  P02835
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 
  • OLDERADO: 1FTZ Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-05-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance