2XGF

Structure of the bacteriophage T4 long tail fibre needle-shaped receptor-binding tip


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the bacteriophage T4 long tail fiber receptor-binding tip.

Bartual, S.G.Otero, J.M.Garcia-Doval, C.Llamas-Saiz, A.L.Kahn, R.Fox, G.C.van Raaij, M.J.

(2010) Proc Natl Acad Sci U S A 107: 20287-20292

  • DOI: 10.1073/pnas.1011218107
  • Primary Citation of Related Structures:  
    2XGF

  • PubMed Abstract: 
  • Bacteriophages are the most numerous organisms in the biosphere. In spite of their biological significance and the spectrum of potential applications, little high-resolution structural detail is available on their receptor-binding fibers. Here we pre ...

    Bacteriophages are the most numerous organisms in the biosphere. In spite of their biological significance and the spectrum of potential applications, little high-resolution structural detail is available on their receptor-binding fibers. Here we present the crystal structure of the receptor-binding tip of the bacteriophage T4 long tail fiber, which is highly homologous to the tip of the bacteriophage lambda side tail fibers. This structure reveals an unusual elongated six-stranded antiparallel beta-strand needle domain containing seven iron ions coordinated by histidine residues arranged colinearly along the core of the biological unit. At the end of the tip, the three chains intertwine forming a broader head domain, which contains the putative receptor interaction site. The structure reveals a previously unknown beta-structured fibrous fold, provides insights into the remarkable stability of the fiber, and suggests a framework for mutations to expand or modulate receptor-binding specificity.


    Related Citations: 
    • Two-Chaperone Assisted Soluble Expression and Purification of the Bacteriophage T4 Long Tail Fibre Protein Gp37.
      Bartual, S.G., Garcia-Doval, C., Alonso, J., Schoehn, G., van Raaij, M.J.
      (2010) Protein Expr Purif 70: 116

    Organizational Affiliation

    Departamento de Bioquimica y Biologia Molecular, Facultad de Farmacia, Campus Vida, Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
LONG TAIL FIBER PROTEIN P37ABC242Escherichia virus T4Mutation(s): 0 
Gene Names: 37
Find proteins for P03744 (Enterobacteria phage T4)
Explore P03744 
Go to UniProtKB:  P03744
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CO3
Query on CO3

Download CCD File 
B
CARBONATE ION
C O3
BVKZGUZCCUSVTD-UHFFFAOYSA-L
 Ligand Interaction
FE2
Query on FE2

Download CCD File 
A
FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.182 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 157.34α = 90
b = 53.98β = 100.43
c = 112.75γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
autoSHARPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-11-03
    Type: Initial release
  • Version 1.1: 2013-03-06
    Changes: Data collection, Version format compliance
  • Version 1.2: 2018-02-07
    Changes: Database references