1OCP

SOLUTION STRUCTURE OF OCT3 POU-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

Structure of the Oct-3 POU-Homeodomain in Solution, as Determined by Triple Resonance Heteronuclear Multidimensional NMR Spectroscopy

Morita, E.H.Shirakawa, M.Hayashi, F.Imagawa, M.Kyogoku, Y.

(1995) Protein Sci. 4: 729-739

  • DOI: 10.1002/pro.5560040412

  • PubMed Abstract: 
  • The POU-homeodomain (POUH) forms the bipartite DNA-binding POU domain in association with the POU-specific domain. The 1H, 15N, and 13C magnetic resonances of the 67-amino acid long POUH of mouse Oct-3 have almost completely been assigned, mainly thr ...

    The POU-homeodomain (POUH) forms the bipartite DNA-binding POU domain in association with the POU-specific domain. The 1H, 15N, and 13C magnetic resonances of the 67-amino acid long POUH of mouse Oct-3 have almost completely been assigned, mainly through the combined use of three-dimensional triple resonance NMR methods. Based on the distance and dihedral angle constraints derived from the NMR data, the solution structure of the POUH domain has been calculated by the ab initio simulated annealing method. The average RMS deviation for all backbone heavy atoms of the 20 best calculated structures for residues 9-53 of the total 67 amino acid residues is 0.44 A. The POUH domain consists of three alpha-helices (helix-I, 10-20; helix-II, 28-38; and helix-III, 42-53), and helices-II and -III form a helix-turn-helix motif. In comparison with other classical homeodomains, the folding of the three helices is quite similar. However, the length of helix-III is fairly short. In the complex of the Oct-1 POU domain with an octamer site (Klemm JD, et al., 1994, Cell 77:21-32), the corresponding region is involved in helix-III. The structural difference between these two cases will be discussed.


    Related Citations: 
    • Secondary Structure of the Oct-3 POU Homeodomain as Determined by 1H-15N NMR Spectroscopy
      Morita, E.H.,Shirakawa, M.,Hayashi, F.,Imagawa, K.,Kyogoku, Y.
      (1993) FEBS Lett. 321: 107


    Organizational Affiliation

    Institute for Protein Research, Osaka University, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
OCT-3
A
67Mus musculusGene Names: Pou5f1 (Oct-3, Oct-4, Otf-3, Otf3)
Find proteins for P20263 (Mus musculus)
Go to UniProtKB:  P20263
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 
  • Olderado: 1OCP Olderado
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-09-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance