2FJR

Crystal Structure of Bacteriophage 186

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

The structural basis of cooperative regulation at an alternate genetic switch

Pinkett, H., Shearwin, K.E., Stayrook, S., Dodd, I.B., Burr, T., Hochschild, A., Egan, J.B., Lewis, M.

(2006) Mol Cell 21: 605-615

  • DOI: 10.1016/j.molcel.2006.01.019
  • Structures With Same Primary Citation

  • PubMed Abstract: 

    • Bacteriophage lambda is a paradigm for understanding the role of cooperativity in gene regulation. Comparison of the regulatory regions of lambda and the unrelated temperate bacteriophage 186 provides insight into alternate ways to assemble functiona ...

    Bacteriophage lambda is a paradigm for understanding the role of cooperativity in gene regulation. Comparison of the regulatory regions of lambda and the unrelated temperate bacteriophage 186 provides insight into alternate ways to assemble functional genetic switches. The structure of the C-terminal domain of the 186 repressor, determined at 2.7 A resolution, reveals an unusual heptamer of dimers, consistent with presented genetic studies. In addition, the structure of a cooperativity mutant of the full-length 186 repressor, identified by genetic screens, was solved to 1.95 A resolution. These structures provide a molecular basis for understanding lysogenic regulation in 186. Whereas the overall fold of the 186 and lambda repressor monomers is remarkably similar, the way the two repressors cooperatively assemble is quite different and explains in part the differences in their regulatory activity.

    Organizational Affiliation: 

    Department of Biochemistry and Biophysics, University of Pennsylvania School of Medicine, 37th and Hamilton Walk, Philadelphia, 19102, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Repressor protein CIA, B189Escherichia virus 186Mutation(s): 1 
Gene Names: CI
Find proteins for P08707 (Escherichia phage 186)
Explore P08707 
Go to UniProtKB:  P08707
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.218 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 109.137α = 90
b = 109.137β = 90
c = 93.092γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report


View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2006-01-03 
  • Released Date: 2006-06-13 
    • Deposition Author(s): Lewis, M.

Revision History 

  • Version 1.0: 2006-06-13
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance