Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 2.87 kDa 
• Atom Count: 199 
• Modelled Residue Count: 30 
• Deposited Residue Count: 30 
• Unique protein chains: 1

2LA0

Trn- peptide of the two-component bacteriocin Thuricin CD

• PDB DOI: 10.2210/pdb2LA0/pdb
• BMRB: 17495

• Classification: ANTIMICROBIAL PROTEIN
• Organism(s): Bacillus cereus 95/8201
• Mutation(s): Yes 


• Deposited: 2011-02-27 Released: 2012-01-11 
• Deposition Author(s): Sit, C.S., Mckay, R.T., Hill, C., Ross, R.P., Vederas, J.C.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 20 
• Conformers Submitted: 20 
• Selection Criteria: all calculated structures submitted 

Literature

The 3D structure of thuricin CD, a two-component bacteriocin with cysteine sulfur to alpha-carbon cross-links.

Sit, C.S., McKay, R.T., Hill, C., Ross, R.P., Vederas, J.C.

(2011) J Am Chem Soc 133: 7680-7683

• PubMed: 21526839 
• DOI: 10.1021/ja201802f
• Primary Citation of Related Structures:  
  2L9X, 2LA0


• PubMed Abstract: 
  

Thuricin CD is an antimicrobial factor that consists of two peptides, Trn-α and Trn-β, that exhibit synergistic activity against drug resistant strains of Clostridium difficile. Trn-α and Trn-β each possess three sulfur to α-carbon thioether bridges for which the stereochemistry is unknown. This report presents the three-dimensional solution structures of Trn-α and Trn-β. Structure calculations were performed for the eight possible stereoisomers of each peptide based on the same NMR data. The structure of the stereoisomer that best fit the experimental data was chosen as the representative structure for each peptide. It was determined that Trn-α has L-stereochemistry at Ser21 (α-R), L-stereochemistry at Thr25 (α-R), and D-stereochemistry at Thr28 (α-S) (an LLD isomer). Trn-β was also found to be the LLD isomer, with L-stereochemistry at Thr21 (α-R), L-stereochemistry at Ala25 (α-R), and D-stereochemistry at Tyr28 (α-S).

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Organizational Affiliation: 

Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Uncharacterized protein	A	30	Bacillus cereus 95/8201	Mutation(s): 1

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 20 
• Conformers Submitted: 20 
• Selection Criteria: all calculated structures submitted 
• OLDERADO: 2LA0 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-02-27 
• Released Date: 2012-01-11 
Deposition Author(s): Sit, C.S., Mckay, R.T., Hill, C., Ross, R.P., Vederas, J.C.

Revision History  

• Version 1.0: 2012-01-11
  Type: Initial release
  
• Version 1.1: 2018-08-22
  Changes: Data collection, Database references