2MAI

NMR structure of lassomycin


Experimental Data Snapshot

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

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Lassomycin, a Ribosomally Synthesized Cyclic Peptide, Kills Mycobacterium tuberculosis by Targeting the ATP-Dependent Protease ClpC1P1P2.

Gavrish, E.Sit, C.S.Cao, S.Kandror, O.Spoering, A.Peoples, A.Ling, L.Fetterman, A.Hughes, D.Bissell, A.Torrey, H.Akopian, T.Mueller, A.Epstein, S.Goldberg, A.Clardy, J.Lewis, K.

(2014) Chem Biol 21: 509-518

  • DOI: https://doi.org/10.1016/j.chembiol.2014.01.014
  • Primary Citation of Related Structures:  
    2MAI

  • PubMed Abstract: 

    Languishing antibiotic discovery and flourishing antibiotic resistance have prompted the development of alternative untapped sources for antibiotic discovery, including previously uncultured bacteria. Here, we screen extracts from uncultured species against Mycobacterium tuberculosis and identify lassomycin, an antibiotic that exhibits potent bactericidal activity against both growing and dormant mycobacteria, including drug-resistant forms of M. tuberculosis, but little activity against other bacteria or mammalian cells. Lassomycin is a highly basic, ribosomally encoded cyclic peptide with an unusual structural fold that only partially resembles that of other lasso peptides. We show that lassomycin binds to a highly acidic region of the ClpC1 ATPase complex and markedly stimulates its ATPase activity without stimulating ClpP1P2-catalyzed protein breakdown, which is essential for viability of mycobacteria. This mechanism, uncoupling ATPase from proteolytic activity, accounts for the bactericidal activity of lassomycin.


  • Organizational Affiliation

    Antimicrobial Discovery Center, Department of Biology, Northeastern University, Boston, MA 02115, USA.


Macromolecules

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lassomycin16Lentzea kentuckyensisMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

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

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2014-05-07
    Type: Initial release
  • Version 1.1: 2014-05-14
    Changes: Database references
  • Version 2.0: 2023-11-15
    Changes: Atomic model, Data collection, Database references, Derived calculations