1MQX

NMR Solution Structure of Type-B Lantibiotics Mersacidin in MeOH/H2O Mixture


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 12 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

NMR Study of Mersacidin and Lipid II Interaction in Dodecylphosphocholine Micelles. Conformational Changes are a Key to Antimicrobial Activity

Hsu, S.-T.Breukink, E.Bierbaum, G.Sahl, H.-G.De Kruijff, B.Kaptein, R.Van Nuland, N.A.Bonvin, A.M.

(2003) J.Biol.Chem. 278: 13110

  • DOI: 10.1074/jbc.M211144200
  • Primary Citation of Related Structures:  1MQY, 1MQZ
  • Also Cited By: 1W9N

  • PubMed Abstract: 
  • Mersacidin belongs to the type B lantibiotics (lanthionine-containing antibiotics) that contain post-translationally modified amino acids and cyclic ring structures. It targets the cell wall precursor lipid II and thereby inhibits cell wall synthesis ...

    Mersacidin belongs to the type B lantibiotics (lanthionine-containing antibiotics) that contain post-translationally modified amino acids and cyclic ring structures. It targets the cell wall precursor lipid II and thereby inhibits cell wall synthesis. In light of the emerging antibiotics resistance problem, the understanding of the antibacterial activity on a structural basis provides a key to circumvent this issue. Here we present solution NMR studies of mersacidin-lipid II interaction in dodecylphosphocholine (DPC) micelles. Distinct solution structures of mersacidin were determined in three different states: in water/methanol solution and in DPC micelles with and without lipid II. The structures in various sample conditions reveal remarkable conformational changes in which the junction between Ala-12 and Abu-13 (where Abu is aminobutyric acid) effectively serves as the hinge for the opening and closure of the ring structures. The DPC micelle-bound form resembles the previously determined NMR and x-ray crystal structures of mersacidin in pure methanol but substantially deviates from the other two states in our current report. The structural changes delineate the large chemical shift perturbations observed during the course of a two-step (15)N-(1)H heteronuclear single quantum coherence titration. They also modulate the surface charge distribution of mersacidin suggesting that electrostatics play a central role in the mersacidin-lipid II interaction. The observed conformational adaptability of mersacidin might be a general feature of lipid II-interacting antibiotics/peptides.


    Organizational Affiliation

    NMR Department, Bijvoet Center for Biomolecular Research, Utrecht University, 3584CH, Utrecht, The Netherlands.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LANTIBIOTIC MERSACIDIN
A
20Bacillus sp. (strain HIL-Y85/54728)Gene Names: mrsA
Find proteins for P43683 (Bacillus sp. (strain HIL-Y85/54728))
Go to UniProtKB:  P43683
Small Molecules
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000199
Query on PRD_000199
AMersacidinOligopeptide / Antibiotic

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 12 
  • Olderado: 1MQX Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-03-11
    Type: Initial release
  • Version 1.1: 2011-06-14
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2011-07-27
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary
  • Version 1.4: 2012-12-12
    Type: Other