4MIX

PaToxG Glycosyltransferase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A bacterial toxin catalyzing tyrosine glycosylation of Rho and deamidation of Gq and Gi proteins.

Jank, T.Bogdanovic, X.Wirth, C.Haaf, E.Spoerner, M.Bohmer, K.E.Steinemann, M.Orth, J.H.Kalbitzer, H.R.Warscheid, B.Hunte, C.Aktories, K.

(2013) Nat Struct Mol Biol 20: 1273-1280

  • DOI: 10.1038/nsmb.2688
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Entomopathogenic Photorhabdus asymbiotica is an emerging pathogen in humans. Here, we identified a P. asymbiotica protein toxin (PaTox), which contains a glycosyltransferase and a deamidase domain. PaTox mono-O-glycosylates Y32 (or Y34) of eukaryotic ...

    Entomopathogenic Photorhabdus asymbiotica is an emerging pathogen in humans. Here, we identified a P. asymbiotica protein toxin (PaTox), which contains a glycosyltransferase and a deamidase domain. PaTox mono-O-glycosylates Y32 (or Y34) of eukaryotic Rho GTPases by using UDP-N-acetylglucosamine (UDP-GlcNAc). Tyrosine glycosylation inhibits Rho activation and prevents interaction with downstream effectors, resulting in actin disassembly, inhibition of phagocytosis and toxicity toward insects and mammalian cells. The crystal structure of the PaTox glycosyltransferase domain in complex with UDP-GlcNAc determined at 1.8-Å resolution represents a canonical GT-A fold and is the smallest glycosyltransferase toxin known. (1)H-NMR analysis identifies PaTox as a retaining glycosyltransferase. The glutamine-deamidase domain of PaTox blocks GTP hydrolysis of heterotrimeric Gαq/11 and Gαi proteins, thereby activating RhoA. Thus, PaTox hijacks host GTPase signaling in a bidirectional manner by deamidation-induced activation and glycosylation-induced inactivation of GTPases.


    Organizational Affiliation

    Institut für Experimentelle und Klinische Pharmakologie und Toxikologie, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative insecticidal toxinA, B336Photorhabdus asymbiotica subsp. asymbiotica ATCC 43949Mutation(s): 0 
Gene Names: PAU_02230
EC: 2.4.1 (PDB Primary Data), 3.5.1.44 (UniProt)
Find proteins for C7BKP9 (Photorhabdus asymbiotica subsp. asymbiotica (strain ATCC 43949 / 3105-77))
Explore C7BKP9 
Go to UniProtKB:  C7BKP9
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
UD1
Query on UD1

Download CCD File 
A, B
URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE
C17 H27 N3 O17 P2
LFTYTUAZOPRMMI-CFRASDGPSA-N
 Ligand Interaction
CA
Query on CA

Download CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A,BL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.225 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 145.817α = 90
b = 42.127β = 99.52
c = 116.367γ = 90
Software Package:
Software NamePurpose
RemDAqdata collection
AutoSolphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-16
    Type: Initial release
  • Version 1.1: 2013-11-06
    Changes: Database references
  • Version 1.2: 2013-11-20
    Changes: Database references
  • Version 1.3: 2017-11-15
    Changes: Refinement description