1OCT

CRYSTAL STRUCTURE OF THE OCT-1 POU DOMAIN BOUND TO AN OCTAMER SITE: DNA RECOGNITION WITH TETHERED DNA-BINDING MODULES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Work: 0.237 
  • R-Value Observed: 0.237 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of the Oct-1 POU domain bound to an octamer site: DNA recognition with tethered DNA-binding modules.

Klemm, J.D.Rould, M.A.Aurora, R.Herr, W.Pabo, C.O.

(1994) Cell 77: 21-32

  • DOI: 10.1016/0092-8674(94)90231-3
  • Primary Citation of Related Structures:  
    1OCT

  • PubMed Abstract: 
  • The structure of an Oct-1 POU domain-octamer DNA complex has been solved at 3.0 A resolution. The POU-specific domain contacts the 5' half of this site (ATGCAAAT), and as predicted from nuclear magnetic resonance studies, the structure, docking, and contacts are remarkably similar to those of the lambda and 434 repressors ...

    The structure of an Oct-1 POU domain-octamer DNA complex has been solved at 3.0 A resolution. The POU-specific domain contacts the 5' half of this site (ATGCAAAT), and as predicted from nuclear magnetic resonance studies, the structure, docking, and contacts are remarkably similar to those of the lambda and 434 repressors. The POU homeodomain contacts the 3' half of this site (ATGCAAAT), and the docking is similar to that of the engrailed, MAT alpha 2, and Antennapedia homeodomains. The linker region is not visible and there are no protein-protein contacts between the domains, but overlapping phosphate contacts near the center of the octamer site may favor cooperative binding. This novel arrangement raises important questions about cooperativity in protein-DNA recognition.


    Organizational Affiliation

    Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (OCT-1 POU DOMAIN)C156Homo sapiensMutation(s): 0 
Gene Names: POU2F1OCT1OTF1
UniProt & NIH Common Fund Data Resources
Find proteins for P14859 (Homo sapiens)
Explore P14859 
Go to UniProtKB:  P14859
PHAROS:  P14859
Protein Feature View
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  • Reference Sequence
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  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*TP*GP*TP*AP*TP*GP*CP*AP*AP*AP*TP*AP*AP*GP*G)-3')A15N/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*CP*CP*TP*TP*AP*TP*TP*TP*GP*CP*AP*TP*AP*C)-3')B15N/A
      Protein Feature View
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      • Reference Sequence
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 3.00 Å
      • R-Value Work: 0.237 
      • R-Value Observed: 0.237 
      • Space Group: C 2 2 21
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 97.5α = 90
      b = 89.8β = 90
      c = 80γ = 90
      Software Package:
      Software NamePurpose
      X-PLORrefinement
      TNTrefinement

      Structure Validation

      View Full Validation Report




      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

      • Version 1.0: 1994-08-31
        Type: Initial release
      • Version 1.1: 2008-05-22
        Changes: Version format compliance
      • Version 1.2: 2011-07-13
        Changes: Version format compliance