1YSA

THE GCN4 BASIC REGION LEUCINE ZIPPER BINDS DNA AS A DIMER OF UNINTERRUPTED ALPHA HELICES: CRYSTAL STRUCTURE OF THE PROTEIN-DNA COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Observed: 0.230 

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This is version 1.2 of the entry. See complete history


Literature

The GCN4 basic region leucine zipper binds DNA as a dimer of uninterrupted alpha helices: crystal structure of the protein-DNA complex.

Ellenberger, T.E.Brandl, C.J.Struhl, K.Harrison, S.C.

(1992) Cell 71: 1223-1237

  • DOI: 10.1016/s0092-8674(05)80070-4
  • Primary Citation of Related Structures:  
    1YSA

  • PubMed Abstract: 
  • The yeast transcriptional activator GCN4 is 1 of over 30 identified eukaryotic proteins containing the basic region leucine zipper (bZIP) DNA-binding motif. We have determined the crystal structure of the GCN4 bZIP element complexed with DNA at 2.9 A resolution ...

    The yeast transcriptional activator GCN4 is 1 of over 30 identified eukaryotic proteins containing the basic region leucine zipper (bZIP) DNA-binding motif. We have determined the crystal structure of the GCN4 bZIP element complexed with DNA at 2.9 A resolution. The bZIP dimer is a pair of continuous alpha helices that form a parallel coiled coil over their carboxy-terminal 30 residues and gradually diverge toward their amino termini to pass through the major groove of the DNA-binding site. The coiled-coil dimerization interface is oriented almost perpendicular to the DNA axis, giving the complex the appearance of the letter T. There are no kinks or sharp bends in either bZIP monomer. Numerous contacts to DNA bases and phosphate oxygens are made by basic region residues that are conserved in the bZIP protein family. The details of the bZIP dimer interaction with DNA can explain recognition of the AP-1 site by the GCN4 protein.


    Related Citations: 
    • X-Ray Structure of the GCN4 Leucine Zipper, a Two-Stranded, Parallel Coiled Coil
      O'Shea, E.K., Klemm, J.D., Kim, P.S., Alber, T.
      (1991) Science 254: 539

    Organizational Affiliation

    Harvard University, Department of Biochemistry and Molecular Biology, Cambridge, Massachusetts 02138.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (GCN4)C, D58Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P03069 
Go to UniProtKB:  P03069
Protein Feature View
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  • Reference Sequence
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  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*TP*TP*CP*CP*TP*AP*TP*GP*AP*CP*TP*CP*AP*TP*CP*CP*A P*GP*TP*T)-3')A20N/A
    Protein Feature View
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    • Reference Sequence
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      DNA (5'-D(*AP*AP*AP*CP*TP*GP*GP*AP*TP*GP*AP*GP*TP*CP*AP*TP*A P*GP*GP*A)-3')B20N/A
      Protein Feature View
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      • Reference Sequence
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 2.90 Å
      • R-Value Observed: 0.230 
      • Space Group: P 21 21 21
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 49.13α = 90
      b = 88.54β = 90
      c = 59.24γ = 90
      Software Package:
      Software NamePurpose
      TNTrefinement

      Structure Validation

      View Full Validation Report




      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

      • Version 1.0: 1993-10-31
        Type: Initial release
      • Version 1.1: 2008-05-22
        Changes: Version format compliance
      • Version 1.2: 2011-07-13
        Changes: Version format compliance