2BNK

The structure of phage phi29 replication organizer protein p16.7


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.270 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the Functional Domain of {Varphi}29 Replication Organizer: Insights Into Oligomerization and DNA Binding.

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

(2005) J.Biol.Chem. 280: 20730

  • DOI: 10.1074/jbc.M501687200
  • Primary Citation of Related Structures:  

  • 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 ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
EARLY PROTEIN GP16.7
A, B
67Bacillus phage phi29Mutation(s): 0 
Gene Names: 16.7
Find proteins for P16517 (Bacillus phage phi29)
Go to UniProtKB:  P16517
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.270 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 95.395α = 90.00
b = 95.395β = 90.00
c = 47.572γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
AMoREphasing
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-04-05
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance