TarP native

Experimental Data Snapshot

  • Resolution: 1.86 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.173 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


Methicillin-resistant Staphylococcus aureus alters cell wall glycosylation to evade immunity.

Gerlach, D.Guo, Y.De Castro, C.Kim, S.H.Schlatterer, K.Xu, F.F.Pereira, C.Seeberger, P.H.Ali, S.Codee, J.Sirisarn, W.Schulte, B.Wolz, C.Larsen, J.Molinaro, A.Lee, B.L.Xia, G.Stehle, T.Peschel, A.

(2018) Nature 563: 705-709

  • DOI: https://doi.org/10.1038/s41586-018-0730-x
  • Primary Citation of Related Structures:  
    6H1J, 6H21, 6H2N, 6H4F, 6H4M, 6HNQ

  • PubMed Abstract: 

    Methicillin-resistant Staphylococcus aureus (MRSA) is a frequent cause of difficult-to-treat, often fatal infections in humans 1,2 . Most humans have antibodies against S. aureus, but these are highly variable and often not protective in immunocompromised patients 3 . Previous vaccine development programs have not been successful 4 . A large percentage of human antibodies against S. aureus target wall teichoic acid (WTA), a ribitol-phosphate (RboP) surface polymer modified with N-acetylglucosamine (GlcNAc) 5,6 . It is currently unknown whether the immune evasion capacities of MRSA are due to variation of dominant surface epitopes such as those associated with WTA. Here we show that a considerable proportion of the prominent healthcare-associated and livestock-associated MRSA clones CC5 and CC398, respectively, contain prophages that encode an alternative WTA glycosyltransferase. This enzyme, TarP, transfers GlcNAc to a different hydroxyl group of the WTA RboP than the standard enzyme TarS 7 , with important consequences for immune recognition. TarP-glycosylated WTA elicits 7.5-40-fold lower levels of immunoglobulin G in mice than TarS-modified WTA. Consistent with this, human sera contained only low levels of antibodies against TarP-modified WTA. Notably, mice immunized with TarS-modified WTA were not protected against infection with tarP-expressing MRSA, indicating that TarP is crucial for the capacity of S. aureus to evade host defences. High-resolution structural analyses of TarP bound to WTA components and uridine diphosphate GlcNAc (UDP-GlcNAc) explain the mechanism of altered RboP glycosylation and form a template for targeted inhibition of TarP. Our study reveals an immune evasion strategy of S. aureus based on averting the immunogenicity of its dominant glycoantigen WTA. These results will help with the identification of invariant S. aureus vaccine antigens and may enable the development of TarP inhibitors as a new strategy for rendering MRSA susceptible to human host defences.

  • Organizational Affiliation

    Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology, University of Tübingen, Tübingen, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Probable ss-1,3-N-acetylglucosaminyltransferase
A, B, C
345Staphylococcus aureus subsp. aureus N315Mutation(s): 0 
Gene Names: SA1808
Find proteins for A0A0H3JNB0 (Staphylococcus aureus (strain N315))
Explore A0A0H3JNB0 
Go to UniProtKB:  A0A0H3JNB0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0H3JNB0
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on CL

Download Ideal Coordinates CCD File 
D [auth A]
E [auth A]
F [auth A]
G [auth A]
H [auth A]
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
J [auth B],
K [auth B],
M [auth C],
N [auth C],
O [auth C]
Query on MG

Download Ideal Coordinates CCD File 
I [auth B],
L [auth C]
Experimental Data & Validation

Experimental Data

  • Resolution: 1.86 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.173 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.37α = 90
b = 95.25β = 96.57
c = 125.47γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
German Research FoundationGermanyTRR34, CRC766

Revision History  (Full details and data files)

  • Version 1.0: 2018-09-26
    Type: Initial release
  • Version 1.1: 2018-11-21
    Changes: Data collection, Database references
  • Version 1.2: 2018-12-05
    Changes: Data collection, Database references
  • Version 1.3: 2018-12-12
    Changes: Data collection, Database references
  • Version 1.4: 2024-05-15
    Changes: Data collection, Database references, Derived calculations