1E3O

Crystal structure of Oct-1 POU dimer bound to MORE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.220 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history

Re-refinement Note

A newer entry is available that reflects an alternative modeling of the original data: 7XRC


Literature

Differential Dimer Activities of the Transcription Factor Oct-1 by DNA-Induced Interface Swapping

Remenyi, A.Tomilin, A.Pohl, E.Lins, K.Philippsen, A.Reinbold, R.Scholer, H.R.Wilmanns, M.

(2001) Mol Cell 8: 569

  • DOI: https://doi.org/10.1016/s1097-2765(01)00336-7
  • Primary Citation of Related Structures:  
    1E3O, 1HF0

  • PubMed Abstract: 

    Two crystal structures of Oct-1 POU domain bound to DNA provide a rationale for differential, conformation-dependent recruitment of transcription cofactors. The POU-homeo and POU-specific subdomains of Oct-1 contain two different nonoverlapping pairs of surface patches that are capable of forming unrelated protein-protein interfaces. Members of the POU factor family contain one or two conserved sequence motifs in the interface that are known to be phosphorylated, as noted for Oct-1 and Pit-1. Modeling of Oct-4 reveals the unique case where the same conserved sequence is located in both interfaces. Our studies provide the basis for two distinct dimeric POU factor arrangements that are dictated by the architecture of each DNA response element. We suggest interface swapping in dimers could be a general mechanism of modulating the activity of transcription factors.


  • Organizational Affiliation

    European Molecular Biology Laboratory, Hamburg Outstation, c/o DESY, Notkestrasse 85, D-22603 Hamburg, Germany.


Macromolecules

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
OCTAMER-BINDING TRANSCRIPTION FACTOR 1160Homo sapiensMutation(s): 2 
UniProt & NIH Common Fund Data Resources
Find proteins for P14859 (Homo sapiens)
Explore P14859 
Go to UniProtKB:  P14859
PHAROS:  P14859
GTEx:  ENSG00000143190 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP14859
Sequence Annotations
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  • Reference Sequence

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Entity ID: 1
MoleculeChains LengthOrganismImage
5'-D(*AP*TP*GP*CP*AP*TP*GP*AP*GP*GP*A)-3'11Homo sapiens
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains LengthOrganismImage
5'-D(*TP*CP*CP*TP*CP*AP*TP*GP*CP*AP*T)-3'11Homo sapiens
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.220 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 93.3α = 90
b = 52.4β = 127.6
c = 69γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-11-10
    Type: Initial release
  • Version 1.1: 2012-11-14
    Changes: Database references, Derived calculations, Non-polymer description, Other, Refinement description, Source and taxonomy, Structure summary, Version format compliance
  • Version 1.2: 2018-03-07
    Changes: Source and taxonomy
  • Version 1.3: 2019-07-24
    Changes: Data collection, Derived calculations
  • Version 1.4: 2023-12-13
    Changes: Data collection, Database references, Refinement description