3H2T

Crystal structure of gene product 6, baseplate protein of bacteriophage T4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The structure of gene product 6 of bacteriophage t4, the hinge-pin of the baseplate.

Aksyuk, A.A.Leiman, P.G.Shneider, M.M.Mesyanzhinov, V.V.Rossmann, M.G.

(2009) Structure 17: 800-808

  • DOI: 10.1016/j.str.2009.04.005
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The baseplate of bacteriophage T4 is a multicomponent protein complex, which controls phage attachment to the host. It assembles from six wedges and a central hub. During infection the baseplate undergoes a large conformational change from a dome-sha ...

    The baseplate of bacteriophage T4 is a multicomponent protein complex, which controls phage attachment to the host. It assembles from six wedges and a central hub. During infection the baseplate undergoes a large conformational change from a dome-shaped to a flat, star-shaped structure. We report the crystal structure of the C-terminal half of gene product (gp) 6 and investigate its motion with respect to the other proteins during the baseplate rearrangement. Six gp6 dimers interdigitate, forming a ring that maintains the integrity of the baseplate in both conformations. One baseplate wedge contains an N-terminal dimer of gp6, whereas neighboring wedges are tied together through the C-terminal dimer of gp6. The dimeric interactions are preserved throughout the rearrangement of the baseplate. However, the hinge angle between the N- and C-terminal parts of gp6 changes by approximately 15 degrees , accounting for a 10 A radial increase in the diameter of the gp6 ring.


    Organizational Affiliation

    Department of Biological Sciences, Purdue University, 915 W. State Street, West Lafayette, IN 47907-2054, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Baseplate structural protein Gp6
A, B
335Enterobacteria phage T4Mutation(s): 0 
Gene Names: 6
Find proteins for P19060 (Enterobacteria phage T4)
Go to UniProtKB:  P19060
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.230 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 76.774α = 90.00
b = 94.579β = 90.00
c = 136.221γ = 90.00
Software Package:
Software NamePurpose
SHELXEmodel building
HKL-2000data reduction
HKL-2000data collection
PHENIXrefinement
HKL-2000data scaling
SHELXCDphasing
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-05-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2013-02-20
    Type: Other
  • Version 1.3: 2017-11-01
    Type: Refinement description