9GRR | pdb_00009grr

Crystal structure of Arabidopsis thaliana Acyl-ACP Thioesterase (At-FatA) complexed with Cinmethylin

• PDB DOI: https://doi.org/10.2210/pdb9GRR/pdb

• Classification: HYDROLASE
• Organism(s): Arabidopsis thaliana
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-09-12 Released: 2025-05-14 
• Deposition Author(s): Montgomery, M.G.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 
  0.233 (Depositor), 0.241 (DCC) 
• R-Value Work: 
  0.216 (Depositor), 0.225 (DCC) 

Starting Model: experimental

Literature

Scaffold-hopping, Bioisosterism and Structure-Based Design in the Development of Novel Acyl-ACP Thioesterase (Fat) Inhibitors as Potential Herbicides

Croft, R., Montgomery, M.G.

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.

Macromolecule Content 

• Total Structure Weight: 34.17 kDa 
• Atom Count: 2,330 
• Modeled Residue Count: 258 
• Deposited Residue Count: 295 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Oleoyl-acyl carrier protein thioesterase 1, chloroplastic	A [auth AaA]	295	Arabidopsis thaliana	Mutation(s): 0  Gene Names: FATA, FATA1, At3g25110, MJL12.5 EC: 3.1.2.14
UniProt
Find proteins for Q42561 (Arabidopsis thaliana) Explore Q42561  Go to UniProtKB:  Q42561

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1IOW (Subject of Investigation/LOI)	B [auth AaA]	(1~{S},2~{R},4~{R})-1-methyl-2-[(2-methylphenyl)methoxy]-4-propan-2-yl-7-oxabicyclo[2.2.1]heptane C18 H26 O2 QMTNOLKHSWIQBE-UQJFVLDMSA-N
SO4	C [auth AaA], D [auth AaA]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	E [auth AaA]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free:  0.233 (Depositor), 0.241 (DCC) 
• R-Value Work:  0.216 (Depositor), 0.225 (DCC) 

Space Group: I 4 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 98.43	α = 90
b = 98.43	β = 90
c = 126.17	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data reduction
xia2	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-05-14 
Deposition Author(s): Montgomery, M.G.

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Funding Organization	Location	Grant Number
Other private		--

Revision History  

• Version 1.0: 2025-05-14
  Type: Initial release