2MC0

Structural Basis of a Thiopeptide Antibiotic Multidrug Resistance System from Streptomyces lividans:Nosiheptide in Complex with TipAS


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural basis and dynamics of multidrug recognition in a minimal bacterial multidrug resistance system

Habazettl, J.Allan, M.Jensen, P.R.Sass, H.J.Thompson, C.J.Grzesiek, S.

(2014) Proc.Natl.Acad.Sci.USA 111: E5498-E5507

  • DOI: 10.1073/pnas.1412070111

  • PubMed Abstract: 
  • TipA is a transcriptional regulator found in diverse bacteria. It constitutes a minimal autoregulated multidrug resistance system against numerous thiopeptide antibiotics. Here we report the structures of its drug-binding domain TipAS in complexes wi ...

    TipA is a transcriptional regulator found in diverse bacteria. It constitutes a minimal autoregulated multidrug resistance system against numerous thiopeptide antibiotics. Here we report the structures of its drug-binding domain TipAS in complexes with promothiocin A and nosiheptide, and a model of the thiostrepton complex. Drug binding induces a large transition from a partially unfolded to a globin-like structure. The structures rationalize the mechanism of promiscuous, yet specific, drug recognition: (i) a four-ring motif present in all known TipA-inducing antibiotics is recognized specifically by conserved TipAS amino acids; and (ii) the variable part of the antibiotic is accommodated within a flexible cleft that rigidifies upon drug binding. Remarkably, the identified four-ring motif is also the major interacting part of the antibiotic with the ribosome. Hence the TipA multidrug resistance mechanism is directed against the same chemical motif that inhibits protein synthesis. The observed identity of chemical motifs responsible for antibiotic function and resistance may be a general principle and could help to better define new leads for antibiotics.


    Organizational Affiliation

    Focal Area Structural Biology and Biophysics, Biozentrum, University of Basel, CH-4056 Basel, Switzerland; and.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HTH-type transcriptional activator TipA
A
144Streptomyces lividansGene Names: tipA
Find proteins for P0A4T9 (Streptomyces lividans)
Go to UniProtKB:  P0A4T9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
nosiheptide
B
13N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NO1
Query on NO1

Download SDF File 
Download CCD File 
B
4-(hydroxymethyl)-3-methyl-1H-indole-2-carboxylic acid
C11 H11 N O3
BSECKLZXEJBFRE-UHFFFAOYSA-N
 Ligand Interaction
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_001172
Query on PRD_001172
Bnosiheptide bound formThiopeptide / Antibiotic

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-12-10
    Type: Initial release
  • Version 1.1: 2015-12-09
    Type: Database references