1PER

THE COMPLEX BETWEEN PHAGE 434 REPRESSION DNA-BINDING DOMAIN AND OPERATOR SITE OR3: STRUCTURAL DIFFERENCES BETWEEN CONSENSUS AND NON-CONSENSUS HALF-SITES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The complex between phage 434 repressor DNA-binding domain and operator site OR3: structural differences between consensus and non-consensus half-sites.

Rodgers, D.W.Harrison, S.C.

(1993) Structure 1: 227-240


  • PubMed Abstract: 
  • The repressor of phage 434 binds to a set of operator sites as a homodimer. Its relative affinities for these sites determine the switch from lysogenic to lytic growth. The six 434 operator sites (OR1, OR2, OR3, OL1, OL2 and OL3) have a particularly ...

    The repressor of phage 434 binds to a set of operator sites as a homodimer. Its relative affinities for these sites determine the switch from lysogenic to lytic growth. The six 434 operator sites (OR1, OR2, OR3, OL1, OL2 and OL3) have a particularly simple organization; all are 14 base pairs long, with a conserved 5'-ACAA sequence symmetrically placed at either end, and a variable central six base pairs. OR3 is unique among naturally-occurring 434 operator sites in that it contains a non-consensus base pair, G.C, at the fourth position of the otherwise invariant 5'-ACAA sequence. Comparisons among structures of the 434 repressor DNA-binding domain, R1-69, bound to various operator sites, allow us to analyze differential specificity in regulatory complexes of this kind.


    Related Citations: 
    • Recognition of a DNA Operator by the Repressor of Phage 434. A View at High Resolution
      Aggarwal, A.K.,Rodgers, D.W.,Drottar, M.,Ptashne, M.,Harrison, S.C.
      (1988) Science 242: 889
    • The Phage 434 OR2/R1-69 Complex at 2.5 Angstroms Resolution
      Shimon, L.W.,Harrison, S.C.
      (1993) J.Mol.Biol. 232: 826


    Organizational Affiliation

    Howard Hughes Medical Institute, Harvard University, Cambridge, MA 02138.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (434 REPRESSOR)
L, R
69Enterobacteria phage 434Gene Names: CI
Find proteins for P16117 (Enterobacteria phage 434)
Go to UniProtKB:  P16117
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*AP*AP*GP*TP*AP*CP*AP*GP*TP*TP*TP*TP*TP*CP*TP*TP*G P*TP*AP*T)-3')A20N/A
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*AP*TP*AP*CP*AP*AP*GP*AP*AP*AP*AP*AP*CP*TP*GP*T P*AP*CP*T)-3')B20N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 150.900α = 90.00
b = 64.500β = 90.00
c = 27.800γ = 90.00
Software Package:
Software NamePurpose
TNTrefinement
CORELSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance