4QSL

Crystal Structure of Listeria Monocytogenes Pyruvate Carboxylase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.28 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.238 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The Cyclic Dinucleotide c-di-AMP Is an Allosteric Regulator of Metabolic Enzyme Function.

Sureka, K.Choi, P.H.Precit, M.Delince, M.Pensinger, D.A.Huynh, T.N.Jurado, A.R.Goo, Y.A.Sadilek, M.Iavarone, A.T.Sauer, J.D.Tong, L.Woodward, J.J.

(2014) Cell 158: 1389-1401

  • DOI: 10.1016/j.cell.2014.07.046
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Cyclic di-adenosine monophosphate (c-di-AMP) is a broadly conserved second messenger required for bacterial growth and infection. However, the molecular mechanisms of c-di-AMP signaling are still poorly understood. Using a chemical proteomics screen ...

    Cyclic di-adenosine monophosphate (c-di-AMP) is a broadly conserved second messenger required for bacterial growth and infection. However, the molecular mechanisms of c-di-AMP signaling are still poorly understood. Using a chemical proteomics screen for c-di-AMP-interacting proteins in the pathogen Listeria monocytogenes, we identified several broadly conserved protein receptors, including the central metabolic enzyme pyruvate carboxylase (LmPC). Biochemical and crystallographic studies of the LmPC-c-di-AMP interaction revealed a previously unrecognized allosteric regulatory site 25 Å from the active site. Mutations in this site disrupted c-di-AMP binding and affected catalytic activity of LmPC as well as PC from pathogenic Enterococcus faecalis. C-di-AMP depletion resulted in altered metabolic activity in L. monocytogenes. Correction of this metabolic imbalance rescued bacterial growth, reduced bacterial lysis, and resulted in enhanced bacterial burdens during infection. These findings greatly expand the c-di-AMP signaling repertoire and reveal a central metabolic regulatory role for a cyclic dinucleotide.


    Organizational Affiliation

    Department of Microbiology, University of Washington, Seattle, WA 98195, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Pyruvate carboxylase
H, F, E, G, D, A, B, C
1146N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.28 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.238 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 91.360α = 86.65
b = 132.615β = 79.84
c = 257.544γ = 70.07
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing
SCALEPACKdata scaling
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2014-07-04 
  • Released Date: 2014-10-29 
  • Deposition Author(s): Choi, P.H., Tong, L.

Revision History 

  • Version 1.0: 2014-10-29
    Type: Initial release