2PZS

Phi29 DNA polymerase complexed with primer-template DNA (post-translocation binary complex)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.219 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structures of phi29 DNA polymerase complexed with substrate: the mechanism of translocation in B-family polymerases

Berman, A.J.Kamtekar, S.Goodman, J.L.Lazaro, J.M.de Vega, M.Blanco, L.Salas, M.Steitz, T.A.

(2007) Embo J. 26: 3494-3505

  • DOI: 10.1038/sj.emboj.7601780
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Replicative DNA polymerases (DNAPs) move along template DNA in a processive manner. The structural basis of the mechanism of translocation has been better studied in the A-family of polymerases than in the B-family of replicative polymerases. To addr ...

    Replicative DNA polymerases (DNAPs) move along template DNA in a processive manner. The structural basis of the mechanism of translocation has been better studied in the A-family of polymerases than in the B-family of replicative polymerases. To address this issue, we have determined the X-ray crystal structures of phi29 DNAP, a member of the protein-primed subgroup of the B-family of polymerases, complexed with primer-template DNA in the presence or absence of the incoming nucleoside triphosphate, the pre- and post-translocated states, respectively. Comparison of these structures reveals a mechanism of translocation that appears to be facilitated by the coordinated movement of two conserved tyrosine residues into the insertion site. This differs from the mechanism employed by the A-family polymerases, in which a conserved tyrosine moves into the templating and insertion sites during the translocation step. Polymerases from the two families also interact with downstream single-stranded template DNA in very different ways.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT 06520, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA polymerase
A, B, C, D
575Bacillus phage phi29Mutation(s): 2 
Gene Names: 2
EC: 2.7.7.7, 3.1.11.-
Find proteins for P03680 (Bacillus phage phi29)
Go to UniProtKB:  P03680
Entity ID: 1
MoleculeChainsLengthOrganism
5'-d(GACTGCTTAC)-3'X,R10N/A
Entity ID: 2
MoleculeChainsLengthOrganism
5'-d(CTAACACGTAAGCAGTC)-3'Y,T,U,S17N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.219 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 216.633α = 90.00
b = 146.292β = 117.93
c = 115.054γ = 90.00
Software Package:
Software NamePurpose
CBASSdata collection
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-07-17
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance