9HRR | pdb_00009hrr

Crystal structure of Arabidopsis thaliana Fatty Acid Thioesterase A in an apo state

• PDB DOI: https://doi.org/10.2210/pdb9HRR/pdb

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


• Deposited: 2024-12-18 Released: 2025-08-13 
• Deposition Author(s): Kot, E., Ni, X., Koekemoer, L., Mulholland, N.P., Montgomery, M.G., von Delft, F.
• Funding Organization(s): Engineering and Physical Sciences Research Council

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free: 
  0.261 (Depositor), 0.271 (DCC) 
• R-Value Work: 
  0.214 (Depositor), 0.225 (DCC) 
• R-Value Observed: 
  0.216 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of Arabidopsis thaliana Fatty Acid Thioesterase A in an apo state

Kot, E., Ni, X., Koekemoer, L., Mulholland, N.P., Montgomery, M.G., von Delft, F.

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: mass spectrometry

Macromolecule Content 

• Total Structure Weight: 67.62 kDa 
• Atom Count: 4,478 
• Modeled Residue Count: 526 
• Deposited Residue Count: 590 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Oleoyl-acyl carrier protein thioesterase 1, chloroplastic	A, B	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 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A], D [auth A], E [auth B], F [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.64 Å
• R-Value Free:  0.261 (Depositor), 0.271 (DCC) 
• R-Value Work:  0.214 (Depositor), 0.225 (DCC) 
• R-Value Observed: 0.216 (Depositor) 

Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 98.818	α = 90
b = 98.815	β = 90
c = 128.771	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
DIALS	data scaling
xia2	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-08-13 
Deposition Author(s): Kot, E., Ni, X., Koekemoer, L., Mulholland, N.P., Montgomery, M.G., von Delft, F.

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Funding Organization	Location	Grant Number
Engineering and Physical Sciences Research Council	United Kingdom	--

Revision History  

• Version 1.0: 2025-08-13
  Type: Initial release