1ARO

T7 RNA POLYMERASE COMPLEXED WITH T7 LYSOZYME


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.262 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of T7 RNA polymerase complexed to the transcriptional inhibitor T7 lysozyme.

Jeruzalmi, D.Steitz, T.A.

(1998) EMBO J. 17: 4101-4113

  • DOI: 10.1093/emboj/17.14.4101

  • PubMed Abstract: 
  • The T7 RNA polymerase-T7 lysozyme complex regulates phage gene expression during infection of Escherichia coli. The 2.8 A crystal structure of the complex reveals that lysozyme binds at a site remote from the polymerase active site, suggesting an ind ...

    The T7 RNA polymerase-T7 lysozyme complex regulates phage gene expression during infection of Escherichia coli. The 2.8 A crystal structure of the complex reveals that lysozyme binds at a site remote from the polymerase active site, suggesting an indirect mechanism of inhibition. Comparison of the T7 RNA polymerase structure with that of the homologous pol I family of DNA polymerases reveals identities in the catalytic site but also differences specific to RNA polymerase function. The structure of T7 RNA polymerase presented here differs significantly from a previously published structure. Sequence similarities between phage RNA polymerases and those from mitochondria and chloroplasts, when interpreted in the context of our revised model of T7 RNA polymerase, suggest a conserved fold.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, 266 Whitney Avenue, New Haven, CT 06520-8114, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
T7 RNA POLYMERASE
P
883Enterobacteria phage T7EC: 2.7.7.6
Find proteins for P00573 (Enterobacteria phage T7)
Go to UniProtKB:  P00573
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
T7 LYSOZYME
L
151Enterobacteria phage T7EC: 3.5.1.28
Find proteins for P00806 (Enterobacteria phage T7)
Go to UniProtKB:  P00806
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HG
Query on HG

Download SDF File 
Download CCD File 
L, P
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.309 
  • R-Value Work: 0.262 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 273.385α = 90.00
b = 95.612β = 101.40
c = 63.582γ = 90.00
Software Package:
Software NamePurpose
DEMON-ANGELphasing
CNSphasing
DEMON-ANGELmodel building
X-PLORrefinement
X-PLORphasing
CNSrefinement
X-PLORmodel building
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-10-21
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance