1ZAE

Solution structure of the functional domain of phi29 replication organizer p16.7c


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 25 
  • Conformers Submitted: 25 
  • Selection Criteria: all calculated structures submitted 

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This is version 1.2 of the entry. See complete history


Literature

Structure of the functional domain of phi29 replication organizer: insights into oligomerization and dna binding

Asensio, J.L.Albert, A.Munoz-Espin, D.Gonzalez, C.Hermoso, J.Villar, L.Jimenez-Barbero, J.Salas, M.Meijer, W.J.J.

(2005) J Biol Chem 280: 20730-20739

  • DOI: 10.1074/jbc.M501687200
  • Primary Citation of Related Structures:  
    1ZAE, 2BNK

  • PubMed Abstract: 
  • The Bacillus subtilis phage phi29-encoded membrane protein p16.7 is one of the few proteins involved in prokaryotic membrane-associated DNA replication that has been characterized at a functional and biochemical level. In this work we have determined both the solution and crystal structures of its dimeric functional domain, p16 ...

    The Bacillus subtilis phage phi29-encoded membrane protein p16.7 is one of the few proteins involved in prokaryotic membrane-associated DNA replication that has been characterized at a functional and biochemical level. In this work we have determined both the solution and crystal structures of its dimeric functional domain, p16.7C. Although the secondary structure of p16.7C is remarkably similar to that of the DNA binding homeodomain, present in proteins belonging to a large family of eukaryotic transcription factors, the tertiary structures of p16.7C and homeodomains are fundamentally different. In fact, p16.7C defines a novel dimeric six-helical fold. We also show that p16.7C can form multimers in solution and that this feature is a key factor for efficient DNA binding. Moreover, a combination of NMR and x-ray approaches, combined with functional analyses of mutants, revealed that multimerization of p16.7C dimers is mediated by a large protein surface that is characterized by a striking self-complementarity. Finally, the structural analyses of the p16.7C dimer and oligomers provide important clues about how protein multimerization and DNA binding are coupled.


    Organizational Affiliation

    Departamento de Química Orgánica Biológica, Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas, Madrid, Spain.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Early protein GP16.7A, B70Bacillus virus phi29Mutation(s): 0 
Gene Names: 16.7
UniProt
Find proteins for P16517 (Bacillus phage phi29)
Explore P16517 
Go to UniProtKB:  P16517
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 25 
  • Conformers Submitted: 25 
  • Selection Criteria: all calculated structures submitted 
  • OLDERADO: 1ZAE Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-04-19
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance