2N9V

Solution NMR Structure of the membrane localization domain from Pasteurella multocida toxin

• PDB DOI: https://doi.org/10.2210/pdb2N9V/pdb
• BMRB: 18565

• Classification: TOXIN
• Organism(s): Pasteurella multocida
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2015-12-12 Released: 2016-12-07 
• Deposition Author(s): Hisao, G.S., Brothers, M.C., Ho, M., Wilson, B.A., Rienstra, C.M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

The membrane localization domains of two distinct bacterial toxins form a 4-helix-bundle in solution.

Hisao, G.S., Brothers, M.C., Ho, M., Wilson, B.A., Rienstra, C.M.

(2017) Protein Sci 26: 497-504

• PubMed: 27977897 
• DOI: https://doi.org/10.1002/pro.3097
• Primary Citation of Related Structures:  
  2N9V, 2N9W


• PubMed Abstract: 
  

  Membrane localization domain (MLD) was first proposed for a 4-helix-bundle motif in the crystal structure of the C1 domain of Pasteurella multocida toxin (PMT). This structure motif is also found in the crystal structures of several clostridial glycosylating toxins (TcdA, TcdB, TcsL, and TcnA). The Ras/Rap1-specific endopeptidase (RRSP) module of the multifunctional autoprocessing repeats-in-toxins (MARTX) toxin produced by Vibrio vulnificus has sequence homology to the C1-C2 domains of PMT, including a putative MLD. We have determined the solution structure for the MLDs in PMT and in RRSP using solution state NMR. We conclude that the MLDs in these two toxins assume a 4-helix-bundle structure in solution.

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Organizational Affiliation: 

Department of Chemistry, University of Illinois at Urbana-Champaign, Illinois.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 10.53 kDa 
• Atom Count: 740 
• Modelled Residue Count: 90 
• Deposited Residue Count: 90 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dermonecrotic toxin	A	90	Pasteurella multocida	Mutation(s): 0  Gene Names: toxA
UniProt
Find proteins for P17452 (Pasteurella multocida) Explore P17452  Go to UniProtKB:  P17452

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-12-07 
Deposition Author(s): Hisao, G.S., Brothers, M.C., Ho, M., Wilson, B.A., Rienstra, C.M.

Revision History  

• Version 1.0: 2016-12-07
  Type: Initial release
  
• Version 1.1: 2016-12-28
  Changes: Database references
• Version 1.2: 2017-03-08
  Changes: Database references
• Version 1.3: 2023-06-14
  Changes: Data collection, Database references, Other