6I73

Structure of Fragaria ananassa O-methyltransferase in complex with S-adenosylhomocysteine and protocatechuic aldehyde

• PDB DOI: https://doi.org/10.2210/pdb6I73/pdb

• Classification: TRANSFERASE
• Organism(s): Fragaria x ananassa
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2018-11-15 Released: 2019-11-27 
• Deposition Author(s): Heldner, A., Schiefner, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.35 Å
• R-Value Free: 0.148 
• R-Value Work: 0.122 
• R-Value Observed: 0.122 

Starting Model: experimental

Literature

Structural insights into enzymatic formation of the strawberry flavor compound 2,5-dimethyl-4-methoxy-3(2H)-furanone

Heldner, A., Schiefner, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 80.92 kDa 
• Atom Count: 6,816 
• Modelled Residue Count: 706 
• Deposited Residue Count: 724 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
O-methyltransferase	A, B	362	Fragaria x ananassa	Mutation(s): 0  Gene Names: omt1 EC: 2.1.1.68
UniProt
Find proteins for Q9M602 (Fragaria ananassa) Explore Q9M602  Go to UniProtKB:  Q9M602

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SAH (Subject of Investigation/LOI)	C [auth A], I [auth B]	S-ADENOSYL-L-HOMOCYSTEINE C14 H20 N6 O5 S ZJUKTBDSGOFHSH-WFMPWKQPSA-N
H6N (Subject of Investigation/LOI)	D [auth A], J [auth B]	Protocatechuic aldehyde C7 H6 O3 IBGBGRVKPALMCQ-UHFFFAOYSA-N
SO4	G [auth A], H [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
EDO	E [auth A], F [auth A], K [auth B], L [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.35 Å
• R-Value Free: 0.148 
• R-Value Work: 0.122 
• R-Value Observed: 0.122 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.376	α = 90
b = 87.655	β = 90
c = 146.814	γ = 90

Software Package:

Software Name	Purpose
XSCALE	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-11-27 
Deposition Author(s): Heldner, A., Schiefner, A.

Revision History  

• Version 1.0: 2019-11-27
  Type: Initial release
  
• Version 1.1: 2024-01-24
  Changes: Data collection, Database references, Refinement description
• Version 1.2: 2024-10-16
  Changes: Data collection, Structure summary