Crystal structure of the lipoteichoic acid synthase LtaP from Listeria monocytogenes

Experimental Data Snapshot

  • Resolution: 1.75 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 

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This is version 1.4 of the entry. See complete history


Structural and mechanistic insight into the Listeria monocytogenes two-enzyme lipoteichoic acid synthesis system.

Campeotto, I.Percy, M.G.MacDonald, J.T.Forster, A.Freemont, P.S.Grundling, A.

(2014) J Biol Chem 289: 28054-28069

  • DOI: https://doi.org/10.1074/jbc.M114.590570
  • Primary Citation of Related Structures:  
    4UOO, 4UOP, 4UOR

  • PubMed Abstract: 

    Lipoteichoic acid (LTA) is an important cell wall component required for proper cell growth in many Gram-positive bacteria. In Listeria monocytogenes, two enzymes are required for the synthesis of this polyglycerolphosphate polymer. The LTA primase LtaP(Lm) initiates LTA synthesis by transferring the first glycerolphosphate (GroP) subunit onto the glycolipid anchor and the LTA synthase LtaS(Lm) extends the polymer by the repeated addition of GroP subunits to the tip of the growing chain. Here, we present the crystal structures of the enzymatic domains of LtaP(Lm) and LtaS(Lm). Although the enzymes share the same fold, substantial differences in the cavity of the catalytic site and surface charge distribution contribute to enzyme specialization. The eLtaS(Lm) structure was also determined in complex with GroP revealing a second GroP binding site. Mutational analysis confirmed an essential function for this binding site and allowed us to propose a model for the binding of the growing chain.

  • Organizational Affiliation

    From the Section of Microbiology and MRC Centre for Molecular Bacteriology and Infection, and.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
442Listeria monocytogenes EGD-eMutation(s): 0 
EC: 2.7.8
Find proteins for Q8Y989 (Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e))
Explore Q8Y989 
Go to UniProtKB:  Q8Y989
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8Y989
Sequence Annotations
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Resolution: 1.75 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.198α = 71.63
b = 53.7β = 76.78
c = 85.037γ = 65.12
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-08-27
    Type: Initial release
  • Version 1.1: 2014-09-03
    Changes: Other
  • Version 1.2: 2014-10-22
    Changes: Database references
  • Version 1.3: 2018-02-28
    Changes: Database references
  • Version 1.4: 2024-01-10
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description