4LYA

EssC (ATPases 2 and 3) from Geobacillus thermodenitrificans (SeMet)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.208 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Substrates Control Multimerization and Activation of the Multi-Domain ATPase Motor of Type VII Secretion.

Rosenberg, O.S.Dovala, D.Li, X.Connolly, L.Bendebury, A.Finer-Moore, J.Holton, J.Cheng, Y.Stroud, R.M.Cox, J.S.

(2015) Cell 161: 501-512

  • DOI: https://doi.org/10.1016/j.cell.2015.03.040
  • Primary Citation of Related Structures:  
    4LWS, 4LYA, 4N1A, 4NH0

  • PubMed Abstract: 

    Mycobacterium tuberculosis and Staphylococcus aureus secrete virulence factors via type VII protein secretion (T7S), a system that intriguingly requires all of its secretion substrates for activity. To gain insights into T7S function, we used structural approaches to guide studies of the putative translocase EccC, a unique enzyme with three ATPase domains, and its secretion substrate EsxB. The crystal structure of EccC revealed that the ATPase domains are joined by linker/pocket interactions that modulate its enzymatic activity. EsxB binds via its signal sequence to an empty pocket on the C-terminal ATPase domain, which is accompanied by an increase in ATPase activity. Surprisingly, substrate binding does not activate EccC allosterically but, rather, by stimulating its multimerization. Thus, the EsxB substrate is also an integral T7S component, illuminating a mechanism that helps to explain interdependence of substrates, and suggests a model in which binding of substrates modulates their coordinate release from the bacterium.


  • Organizational Affiliation

    Division of Infectious Diseases, Department of Medicine, UCSF Medical Center, University of California, San Francisco, San Francisco, CA 94143-0654, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Uncharacterized protein559Geobacillus thermodenitrificans NG80-2Mutation(s): 0 
Gene Names: GTNG_0419
UniProt
Find proteins for A4IKE7 (Geobacillus thermodenitrificans (strain NG80-2))
Explore A4IKE7 
Go to UniProtKB:  A4IKE7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA4IKE7
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.208 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.346α = 90
b = 62.971β = 107.47
c = 83.888γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SHARPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-02-04
    Type: Initial release
  • Version 1.1: 2015-02-11
    Changes: Structure summary
  • Version 1.2: 2016-09-21
    Changes: Database references