8IBP

Crystal structure of Mycobacterium tuberculosis R21K ClpC1 N-terminal domain in complex with Lassomycin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.177 

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This is version 2.1 of the entry. See complete history


Literature

Crystal structure of the N-terminal domain of MtClpC1 in complex with the anti-mycobacterial natural peptide Lassomycin.

Jagdev, M.K.Tompa, D.R.Ling, L.L.Peoples, A.J.Dandapat, J.Mohapatra, C.Lewis, K.Vasudevan, D.

(2023) Int J Biol Macromol 253: 126771-126771

  • DOI: https://doi.org/10.1016/j.ijbiomac.2023.126771
  • Primary Citation of Related Structures:  
    8IBO, 8IBP

  • PubMed Abstract: 

    Antibiotics form our frontline therapy against disease-causing bacteria. Unfortunately, antibiotic resistance is becoming more common, threatening a future where these medications can no longer cure infections. Furthermore, the emergence of multidrug-resistant (MDR), totally drug-resistant (TDR), and extensively drug-resistant (XDR) tuberculosis has increased the urgency of discovering new therapeutic leads with unique modes of action. Some natural peptides derived from actinomycetes, such as Cyclomarin A, Lassomycin, Rufomycin I, and Ecumicin, have potent and specific bactericidal activity against Mycobacterium tuberculosis, with the specificity owing to the fact that these peptides target the ClpC1 ATPase, an essential enzyme in mycobacteria, and inhibit/activate the proteolytic activity of the ClpC1/P1/P2 complex that participates in protein homeostasis. Here, we report the high-resolution crystal structure of the N-terminal domain of ClpC1 (ClpC1 NTD) in complex with Lassomycin, showing the specific binding mode of Lassomycin. In addition, the work also compares the Lassomycin complex structure with the previously known structures of ClpC1 NTD in complex with other natural peptides such as Cyclomarin A, Rufomycin I, and Ecumicin.


  • Organizational Affiliation

    Division of Infectious Disease Biology, Institute of Life Sciences, Bhubaneswar 751023, Odisha, India; Post-Graduate Department of Biotechnology, Utkal University, Bhubaneswar 751004, Odisha, India.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Negative regulator of genetic competence ClpC/mecB143Mycobacterium tuberculosisMutation(s): 1 
Gene Names: clpC_1
UniProt
Find proteins for P9WPC9 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WPC9 
Go to UniProtKB:  P9WPC9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WPC9
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
LassomycinB [auth C]16Lentzea 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: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.177 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.537α = 90
b = 58.483β = 90
c = 64.754γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
iMOSFLMdata reduction
Aimlessdata scaling
MOLREPphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2023-09-20
    Type: Initial release
  • Version 2.0: 2023-11-15
    Changes: Atomic model, Data collection, Derived calculations
  • Version 2.1: 2024-05-08
    Changes: Database references