4NAG

Xanthomonins I III are a New Class of Lasso Peptides Featuringa Seven-Membered Macrolactam Ring


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.81 Å

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Xanthomonins I-III: A New Class of Lasso Peptides with a Seven-Residue Macrolactam Ring.

Hegemann, J.D.Zimmermann, M.Zhu, S.Steuber, H.Harms, K.Xie, X.Marahiel, M.A.

(2014) Angew.Chem.Int.Ed.Engl. 53: 2230-2234

  • DOI: 10.1002/anie.201309267

  • PubMed Abstract: 
  • Lasso peptides belong to the class of ribosomally synthesized and post-translationally modified peptides. Their common distinguishing feature is an N-terminal macrolactam ring that is threaded by the C-terminal tail. This lasso fold is maintained thr ...

    Lasso peptides belong to the class of ribosomally synthesized and post-translationally modified peptides. Their common distinguishing feature is an N-terminal macrolactam ring that is threaded by the C-terminal tail. This lasso fold is maintained through steric interactions. The isolation and characterization of xanthomonins I-III, the first lasso peptides featuring macrolactam rings consisting of only seven amino acids, is now presented. The crystal structure of xanthomonin I and the NMR structure of xanthomonin II were also determined. A total of 25 variants of xanthomonin II were generated to probe different aspects of the biosynthesis, stability, and fold maintenance. These mutational studies reveal the limits such a small ring imposes on the threading and show that every plug amino acid larger than serine is able to maintain a heat-stable lasso fold in the xanthomonin II scaffold.


    Organizational Affiliation

    Fachbereich Chemie, Fachgebiet Biochemie und LOEWE-Zentrum für Synthetische, Mikrobiologie, Philipps-Universität Marburg, Meerwein-Strasse 4, 35032 Marburg (Germany).




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Xanthomonin I
A, B
16Xanthomonas gardneri ATCC 19865Mutation(s): 0 
Find proteins for F0CAT0 (Xanthomonas gardneri ATCC 19865)
Go to UniProtKB:  F0CAT0
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEZ
Query on HEZ

Download SDF File 
Download CCD File 
A
HEXANE-1,6-DIOL
C6 H14 O2
XXMIOPMDWAUFGU-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.81 Å
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 13.804α = 90.00
b = 45.096β = 91.42
c = 13.890γ = 90.00
Software Package:
Software NamePurpose
SHELXL-97refinement
SHELXphasing
SHELXmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-04-30
    Type: Initial release
  • Version 1.1: 2014-05-21
    Type: Database references