Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly 2  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 99.36 kDa 
• Atom Count: 6829 
• Modelled Residue Count: 819 
• Deposited Residue Count: 892 
• Unique protein chains: 1

3HLK

Crystal structure of human mitochondrial acyl-CoA thioesterase (ACOT2)

• DOI: 10.2210/pdb3HLK/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-05-27 Released: 2009-06-23 
• Deposition Author(s): Mandel, C.R., Tweel, B., Tong, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.236 
• R-Value Work: 0.194 
• R-Value Observed: 0.196 

Literature

Crystal structure of human mitochondrial acyl-CoA thioesterase (ACOT2)

Mandel, C.R., Tweel, B., Tong, L.

(2009) Biochem Biophys Res Commun 385: 630-633

• PubMed: 19497300 
• DOI: 10.1016/j.bbrc.2009.05.122
• Primary Citation of Related Structures:  
  3HLK


• PubMed Abstract: 
  

Acyl-CoA thioesterases (ACOTs) catalyze the hydrolysis of CoA esters to free CoA and carboxylic acids and have important functions in lipid metabolism and other cellular processes. Type I ACOTs are found only in animals and contain an alpha/beta hydrolase domain, through currently no structural information is available on any of these enzymes. We report here the crystal structure at 2.1A resolution of human mitochondrial ACOT2, a type I enzyme. The structure contains two domains, N and C domains. The C domain has the alpha/beta hydrolase fold, with the catalytic triad Ser294-His422-Asp388. The N domain contains a seven-stranded beta-sandwich, which has some distant structural homologs in other proteins. The active site is located in a large pocket at the interface between the two domains. The structural information has significant relevance for other type I ACOTs and related enzymes.

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Organizational Affiliation: 

Department of Biological Sciences, Columbia University, New York, NY 10027, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acyl-coenzyme A thioesterase 2, mitochondrial	A, B	446	Homo sapiens	Mutation(s): 0  Gene Names: ACOT2, PTE2, PTE2A EC: 3.1.2.2
Find proteins for P49753 (Homo sapiens) Explore P49753  Go to UniProtKB:  P49753
NIH Common Fund Data Resources
PHAROS:  P49753 GTEx:  ENSG00000119673

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A,B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.236 
• R-Value Work: 0.194 
• R-Value Observed: 0.196 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 124.557	α = 90
b = 124.557	β = 90
c = 131.95	γ = 120

Software Package:

Software Name	Purpose
SnB	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2009-05-27 
• Released Date: 2009-06-23 
Deposition Author(s): Mandel, C.R., Tweel, B., Tong, L.

Revision History  

• Version 1.0: 2009-06-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description