8DYN | pdb_00008dyn

Antimicrobial lasso peptide cloacaenodin

• PDB DOI: https://doi.org/10.2210/pdb8DYN/pdb
• BMRB: 31037

• Classification: ANTIBIOTIC
• Organism(s): Enterobacter hormaechei
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2022-08-04 Released: 2022-12-07 
• Deposition Author(s): Carson, D.V., Link, A.J.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Cloacaenodin, an Antimicrobial Lasso Peptide with Activity against Enterobacter .

Carson, D.V., Patino, M., Elashal, H.E., Cartagena, A.J., Zhang, Y., Whitley, M.E., So, L., Kayser-Browne, A.K., Earl, A.M., Bhattacharyya, R.P., Link, A.J.

(2023) ACS Infect Dis 9: 111-121

• PubMed: 36519726 
• DOI: https://doi.org/10.1021/acsinfecdis.2c00446
• Primary Citation Related Structures: 
  8DYN


• PubMed Abstract: 
  

  Using genome mining and heterologous expression, we report the discovery and production of a new antimicrobial lasso peptide from species related to the Enterobacter cloacae complex. Using NMR and mass spectrometric analysis, we show that this lasso peptide, named cloacaenodin, employs a threaded lasso fold which imparts proteolytic resistance that its unthreaded counterpart lacks. Cloacaenodin has selective, low micromolar, antimicrobial activity against species related to the E. cloacae complex, including species implicated in nosocomial infections and against clinical isolates of carbapenem-resistant Enterobacterales . We further used site-directed mutagenesis to probe the importance of specific residues to the peptide's biosynthesis, stability, and bioactivity.

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Organizational Affiliation: 
• Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States.
Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, United States.
Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, United States.
Infectious Diseases Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts 02114, United States.
Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 2.6 kDa 
• Atom Count: 184 
• Modeled Residue Count: 24 
• Deposited Residue Count: 24 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cloacaenodin	A	24	Enterobacter hormaechei	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2022-12-07 
Deposition Author(s): Carson, D.V., Link, A.J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM107036

Revision History  

• Version 1.0: 2022-12-07
  Type: Initial release
  
• Version 1.1: 2023-01-04
  Changes: Database references
• Version 1.2: 2023-01-25
  Changes: Database references
• Version 1.3: 2024-05-15
  Changes: Data collection, Database references