1R69

STRUCTURE OF THE AMINO-TERMINAL DOMAIN OF PHAGE 434 REPRESSOR AT 2.0 ANGSTROMS RESOLUTION

• PDB DOI:  https://doi.org/10.2210/pdb1R69/pdb

• Classification: GENE REGULATING PROTEIN
• Organism(s): Phage 434
• Mutation(s): No 


• Deposited: 1988-12-08 Released: 1989-10-15 
• Deposition Author(s): Mondragon, A., Subbiah, S., Alamo, S.C., Drottar, M., Harrison, S.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.193 

Literature

Structure of the amino-terminal domain of phage 434 repressor at 2.0 A resolution.

Mondragon, A., Subbiah, S., Almo, S.C., Drottar, M., Harrison, S.C.

(1989) J Mol Biol 205: 189-200

• PubMed: 2926803 
• DOI: https://doi.org/10.1016/0022-2836(89)90375-6
• Primary Citation of Related Structures:  
  1R69


• PubMed Abstract: 
  

The crystal structure of the amino-terminal domain of phage 434 repressor has been solved using molecular replacement methods and refined to an R-factor of 19.3% against data to 2.0 A resolution. The protein comprises five short alpha-helices. Two of these form a helix-turn-helix motif, very similar to those found in related proteins. The protein is remarkably similar to the Cro protein from the same phage.

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Organizational Affiliation: 

Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, MA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 7.56 kDa 
• Atom Count: 518 
• Modelled Residue Count: 63 
• Deposited Residue Count: 69 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
REPRESSOR PROTEIN CI	A	69	Phage 434	Mutation(s): 0  Gene Names: CI
UniProt
Find proteins for P16117 (Enterobacteria phage 434) Explore P16117  Go to UniProtKB:  P16117

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Observed: 0.193 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 32.8	α = 90
b = 37.5	β = 90
c = 44.6	γ = 90

Software Package:

Software Name	Purpose
PROLSQ	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1989-10-15 
Deposition Author(s): Mondragon, A., Subbiah, S., Alamo, S.C., Drottar, M., Harrison, S.C.

Revision History  

• Version 1.0: 1989-10-15
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance