4G6D

G1 ORF67 / Staphyloccus aureus sigmaA domain 4 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.206 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Promoter-specific transcription inhibition in Staphylococcus aureus by a phage protein.

Osmundson, J.Montero-Diez, C.Westblade, L.F.Hochschild, A.Darst, S.A.

(2012) Cell 151: 1005-1016

  • DOI: 10.1016/j.cell.2012.10.034
  • Primary Citation of Related Structures:  
    4G6D, 4G8X, 4G94

  • PubMed Abstract: 
  • Phage G1 gp67 is a 23 kDa protein that binds to the Staphylococcus aureus (Sau) RNA polymerase (RNAP) σ(A) subunit and blocks cell growth by inhibiting transcription. We show that gp67 has little to no effect on transcription from most promoters but is a potent inhibitor of ribosomal RNA transcription ...

    Phage G1 gp67 is a 23 kDa protein that binds to the Staphylococcus aureus (Sau) RNA polymerase (RNAP) σ(A) subunit and blocks cell growth by inhibiting transcription. We show that gp67 has little to no effect on transcription from most promoters but is a potent inhibitor of ribosomal RNA transcription. A 2.0-Å-resolution crystal structure of the complex between gp67 and Sau σ(A) domain 4 (σ(A)(4)) explains how gp67 joins the RNAP promoter complex through σ(A)(4) without significantly affecting σ(A)(4) function. Our results indicate that gp67 forms a complex with RNAP at most, if not all, σ(A)-dependent promoters, but selectively inhibits promoters that depend on an interaction between upstream DNA and the RNAP α-subunit C-terminal domain (αCTD). Thus, we reveal a promoter-specific transcription inhibition mechanism by which gp67 interacts with the RNAP promoter complex through one subunit (σ(A)), and selectively affects the function of another subunit (αCTD) depending on promoter usage.


    Organizational Affiliation

    The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RNA polymerase sigma factor rpoDA73Staphylococcus aureus subsp. aureus NCTC 8325Mutation(s): 0 
Gene Names: rpoDplaCsigASAOUHSC_01662
Find proteins for P0A0J0 (Staphylococcus aureus (strain NCTC 8325 / PS 47))
Explore P0A0J0 
Go to UniProtKB:  P0A0J0
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
ORF067B198Staphylococcus virus G1Mutation(s): 0 
Find proteins for Q4Z9Y5 (Staphylococcus virus G1)
Explore Q4Z9Y5 
Go to UniProtKB:  Q4Z9Y5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.206 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.381α = 90
b = 64.724β = 90
c = 108.721γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
SHARPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-01-23
    Type: Initial release