4AKT

PatG macrocyclase in complex with peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.63 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Mechanism of Patellamide Macrocyclization Revealed by the Characterization of the Patg Macrocyclase Domain.

Koehnke, J.Bent, A.Houssen, W.E.Zollman, D.Morawitz, F.Shirran, S.Vendome, J.Nneoyiegbe, A.F.Trembleau, L.Botting, C.H.Smith, M.C.Jaspars, M.Naismith, J.H.

(2012) Nat.Struct.Mol.Biol. 19: 767

  • DOI: 10.1038/nsmb.2340
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Peptide macrocycles are found in many biologically active natural products. Their versatility, resistance to proteolysis and ability to traverse membranes has made them desirable molecules. Although technologies exist to synthesize such compounds, th ...

    Peptide macrocycles are found in many biologically active natural products. Their versatility, resistance to proteolysis and ability to traverse membranes has made them desirable molecules. Although technologies exist to synthesize such compounds, the full extent of diversity found among natural macrocycles has yet to be achieved synthetically. Cyanobactins are ribosomal peptide macrocycles encompassing an extraordinarily diverse range of ring sizes, amino acids and chemical modifications. We report the structure, biochemical characterization and initial engineering of the PatG macrocyclase domain of Prochloron sp. from the patellamide pathway that catalyzes the macrocyclization of linear peptides. The enzyme contains insertions in the subtilisin fold to allow it to recognize a three-residue signature, bind substrate in a preorganized and unusual conformation, shield an acyl-enzyme intermediate from water and catalyze peptide bond formation. The ability to macrocyclize a broad range of nonactivated substrates has wide biotechnology applications.


    Organizational Affiliation

    Biomedical Sciences Research Complex, University of St Andrews, St Andrews, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
THIAZOLINE OXIDASE/SUBTILISIN-LIKE PROTEASE
A, B
360Prochloron didemniMutation(s): 1 
Gene Names: patG
Find proteins for Q52QJ1 (Prochloron didemni)
Go to UniProtKB:  Q52QJ1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
SUBSTRATE ANALOGUE
C
12N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.63 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.190 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 135.630α = 90.00
b = 67.320β = 116.76
c = 137.870γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-07-18
    Type: Initial release
  • Version 1.1: 2012-08-22
    Type: Database references
  • Version 1.2: 2013-11-06
    Type: Structure summary