1RIO

Structure of bacteriophage lambda cI-NTD in complex with sigma-region4 of Thermus aquaticus bound to DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.254
  • R-Value Work: 0.216

Literature

Macromolecules
Sequence Display for 1RIO

Classification: transcription / DNA

Total Structure Weight: 47773.62


Macromolecule Entities
Molecule Chains Length Organism Details
sigma factor SigA H 73 Thermus aquaticus Fragment: Sigma region 4
Gene Name(s): sigA
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG
Repressor protein CI A, B 98 Escherichia virus lambda Fragment: cI-N-terminus domain
Mutation: M41M, M43M, M88M
Gene Name(s): cI lambdap88
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG
Macromolecule Entities
Molecule Chains Length Organism Details
27-MER U 27 synthetic chemically synthesized
27-MER T 27 synthetic chemically synthesized

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
MPD
Query on MPD

A (4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

A CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
Modified Residues 1 Unique
ID Chains Type Formula 2D Diagram Parent
MSE
Query on MSE
A, B L-PEPTIDE LINKING C5 H11 N O2 Se MET

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.254
  • R-Value Work: 0.216
  • Space Group: P 1 21 1

Unit Cell:

Length (Å) Angle (°)
a = 47.26 α = 90.00
b = 71.27 β = 91.34
c = 77.20 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2003-11-17
  • Released Date: 2004-01-27
  • Deposition author(s): Jain, D., Nickels, B.E., Sun, L., Hochschild, A., Darst, S.A.

Revision History

  • Version 1_0: 2004-01-27

    Type: Initial release

  • Version 1_1: 2008-04-29

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Advisory, Version format compliance