1QLV

Pyrone synthase (PYS) from Gerbera hybrida

• PDB DOI: https://doi.org/10.2210/pdb1QLV/pdb

• Classification: POLYKETIDE SYNTHASE
• Organism(s): Gerbera hybrid cultivar
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 1999-09-16 Released: 2000-09-24 
• Deposition Author(s): Ferrer, J.-L., Jez, J.M., Bowman, M.E., Schroder, J., Noel, J.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.269 
• R-Value Observed: 0.181 

Starting Model: experimental

Literature

Pyrone Synthase (Pys) from Gerbera Hybrida

Ferrer, J.-L., Jez, J.M., Bowman, M.E., Schroder, J., Noel, J.P.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 87.67 kDa 
• Atom Count: 6,673 
• Modelled Residue Count: 754 
• Deposited Residue Count: 804 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PYRONE SYNTHASE	A, B	402	Gerbera hybrid cultivar	Mutation(s): 1  EC: 2.3.1.74
UniProt
Find proteins for P48391 (Gerbera hybrida) Explore P48391  Go to UniProtKB:  P48391

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSD	A, B	L-PEPTIDE LINKING	C3 H7 N O4 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.269 
• R-Value Observed: 0.181 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.14	α = 90
b = 82.14	β = 90
c = 241.325	γ = 120

Software Package:

Software Name	Purpose
SHELXL-97	refinement
DENZO	data reduction
SCALEPACK	data scaling
EPMR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-09-24 
Deposition Author(s): Ferrer, J.-L., Jez, J.M., Bowman, M.E., Schroder, J., Noel, J.P.

Revision History  

• Version 1.0: 2000-09-24
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-05-08
  Changes: Data collection, Derived calculations, Experimental preparation, Other
• Version 1.4: 2019-05-15
  Changes: Data collection, Experimental preparation
• Version 1.5: 2023-12-13
  Changes: Data collection, Database references, Other, Refinement description