4NAO

Crystal structure of EasH


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.182 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.158 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Cyclolization of d-lysergic Acid alkaloid peptides.

Havemann, J.Vogel, D.Loll, B.Keller, U.

(2014) Chem Biol 21: 146-155

  • DOI: 10.1016/j.chembiol.2013.11.008
  • Primary Citation of Related Structures:  
    4NAO

  • PubMed Abstract: 
  • The tripeptide chains of the ergopeptines, a class of pharmacologically important D-lysergic acid alkaloid peptides, are arranged in a unique bicyclic cyclol based on an amino-terminal α-hydroxyamino acid and a terminal orthostructure. D-lysergyl-tripeptides are assembled by the nonribosomal peptide synthetases LPS1 and LPS2 of the ergot fungus Claviceps purpurea and released as N-(D-lysergyl-aminoacyl)-lactams ...

    The tripeptide chains of the ergopeptines, a class of pharmacologically important D-lysergic acid alkaloid peptides, are arranged in a unique bicyclic cyclol based on an amino-terminal α-hydroxyamino acid and a terminal orthostructure. D-lysergyl-tripeptides are assembled by the nonribosomal peptide synthetases LPS1 and LPS2 of the ergot fungus Claviceps purpurea and released as N-(D-lysergyl-aminoacyl)-lactams. We show total enzymatic synthesis of ergopeptines catalyzed by a Fe²⁺/2-ketoglutarate-dependent dioxygenase (EasH) in conjunction with LPS1/LPS2. Analysis of the reaction indicated that EasH introduces a hydroxyl group into N-(D-lysergyl-aminoacyl)-lactam at α-C of the aminoacyl residue followed by spontaneous condensation with the terminal lactam carbonyl group. Sequence analysis revealed that EasH belongs to the wide and diverse family of the phytanoyl coenzyme A hydroxylases. We provide a high-resolution crystal structure of EasH that is most similar to that of phytanoyl coenzyme A hydroxylase, PhyH, from human.


    Organizational Affiliation

    Institut für Chemie, Arbeitsgruppe Biochemie und Molekulare Biologie, Technische Universität Berlin, Müller-Breslau-Strasse 10, Berlin-Charlottenburg 10623, Germany. Electronic address: ullrich.keller@tu-berlin.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Putative oxygenaseA326Claviceps purpureaMutation(s): 0 
Gene Names: easH1
EC: 1.14.11
UniProt
Find proteins for G8GV69 (Claviceps purpurea (strain 20.1))
Explore G8GV69 
Go to UniProtKB:  G8GV69
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG8GV69
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
P6G
Query on P6G

Download Ideal Coordinates CCD File 
B [auth A]HEXAETHYLENE GLYCOL
C12 H26 O7
IIRDTKBZINWQAW-UHFFFAOYSA-N
 Ligand Interaction
AKG
Query on AKG

Download Ideal Coordinates CCD File 
C [auth A]2-OXOGLUTARIC ACID
C5 H6 O5
KPGXRSRHYNQIFN-UHFFFAOYSA-N
 Ligand Interaction
FE2
Query on FE2

Download Ideal Coordinates CCD File 
E [auth A]FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

Download Ideal Coordinates CCD File 
D [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.182 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.158 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.304α = 90
b = 91.304β = 90
c = 79.189γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
SHARPphasing
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-01-15
    Type: Initial release
  • Version 1.1: 2014-02-05
    Changes: Database references