3JTG

Crystal structure of mouse Elf3 C-terminal DNA-binding domain in complex with type II TGF-beta receptor promoter DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.234 
  • R-Value Observed: 0.234 

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This is version 1.1 of the entry. See complete history


Literature

Crystal structure of mouse Elf3 C-terminal DNA-binding domain in complex with type II TGF-beta receptor promoter DNA.

Agarkar, V.B.Babayeva, N.D.Wilder, P.J.Rizzino, A.Tahirov, T.H.

(2010) J Mol Biol 397: 278-289

  • DOI: 10.1016/j.jmb.2010.01.017
  • Primary Citation of Related Structures:  
    3JTG

  • PubMed Abstract: 
  • The Ets family of transcription factors is composed of more than 30 members. One of its members, Elf3, is expressed in virtually all epithelial cells as well as in many tumors, including breast tumors. Several studies observed that the promoter of the type II TGF-beta receptor gene (TbetaR-II) is strongly stimulated by Elf3 via two adjacent Elf3 binding sites, the A-site and the B-site ...

    The Ets family of transcription factors is composed of more than 30 members. One of its members, Elf3, is expressed in virtually all epithelial cells as well as in many tumors, including breast tumors. Several studies observed that the promoter of the type II TGF-beta receptor gene (TbetaR-II) is strongly stimulated by Elf3 via two adjacent Elf3 binding sites, the A-site and the B-site. Here, we report the 2.2 A resolution crystal structure of a mouse Elf3 C-terminal fragment, containing the DNA-binding Ets domain, in complex with the B-site of mouse type II TGF-beta receptor promoter DNA (mTbetaR-II(DNA)). Elf3 contacts the core GGAA motif of the B-site from a major groove similar to that of known Ets proteins. However, unlike other Ets proteins, Elf3 also contacts sequences of the A-site from the minor groove of the DNA. DNA binding experiments and cell-based transcription studies indicate that minor groove interaction by Arg349 located in the Ets domain is important for Elf3 function. Equally interesting, previous studies have shown that the C-terminal region of Elf3, which flanks the Ets domain, is required for Elf3 binding to DNA. In this study, we determined that Elf3 amino acid residues within this flanking region, including Trp361, are important for the structural integrity of the protein as well as for the Efl3 DNA binding and transactivation activity.


    Related Citations: 
    • Preliminary crystallographic analysis of mouse Elf3 C-terminal DNA-binding domain in complex with type II TGF-beta receptor promoter DNA
      Agarkar, V.B., Babayeva, N.D., Rizzino, A., Tahirov, T.H.
      (2009) Acta Crystallogr Sect F Struct Biol Cryst Commun 65: 1261

    Organizational Affiliation

    Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, 987696 Nebraska Medical Center, Omaha, NE 68198-7696, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ETS-related transcription factor Elf-3A103Mus musculusMutation(s): 0 
Gene Names: Elf3ErtEsxJen
UniProt & NIH Common Fund Data Resources
Find proteins for Q3UPW2 (Mus musculus)
Explore Q3UPW2 
Go to UniProtKB:  Q3UPW2
IMPC:  MGI:1101781
Protein Feature View
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  • Reference Sequence
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  • Entity ID: 2
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*GP*AP*GP*GP*AP*GP*TP*TP*TP*CP*CP*TP*GP*TP*TP*T)-3')B16N/A
    Protein Feature View
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    • Reference Sequence
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 3
      MoleculeChainsLengthOrganismImage
      DNA (5'-D(*CP*AP*AP*AP*CP*AP*GP*GP*AP*AP*AP*CP*TP*CP*CP*T)-3')C16N/A
      Protein Feature View
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      • Reference Sequence
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 2.20 Å
      • R-Value Free: 0.263 
      • R-Value Work: 0.234 
      • R-Value Observed: 0.234 
      • Space Group: P 21 21 21
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 42.66α = 90
      b = 52.005β = 90
      c = 99.783γ = 90
      Software Package:
      Software NamePurpose
      CNSrefinement
      HKL-2000data reduction
      HKL-2000data scaling
      CNSphasing

      Structure Validation

      View Full Validation Report




      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

      • Version 1.0: 2010-01-12
        Type: Initial release
      • Version 1.1: 2011-07-13
        Changes: Version format compliance