4AE7

Crystal structure of human THEM5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.171 
  • R-Value Work: 0.140 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Acyl Coenzyme a Thioesterase Them5/Acot15 is Involved in Cardiolipin Remodeling and Fatty Liver Development.

Zhuravleva, E.Gut, H.Hynx, D.Marcellin, D.Bleck, C.K.E.Genoud, C.Cron, P.Keusch, J.J.Dummler, B.Esposti, M.D.Hemmings, B.A.

(2012) Mol.Cell.Biol. 32: 2685

  • DOI: 10.1128/MCB.00312-12
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Acyl coenzyme A (acyl-CoA) thioesterases hydrolyze thioester bonds in acyl-CoA metabolites. The majority of mammalian thioesterases are α/β-hydrolases and have been studied extensively. A second class of Hotdog-fold enzymes has been less well describ ...

    Acyl coenzyme A (acyl-CoA) thioesterases hydrolyze thioester bonds in acyl-CoA metabolites. The majority of mammalian thioesterases are α/β-hydrolases and have been studied extensively. A second class of Hotdog-fold enzymes has been less well described. Here, we present a structural and functional analysis of a new mammalian mitochondrial thioesterase, Them5. Them5 and its paralog, Them4, adopt the classical Hotdog-fold structure and form homodimers in crystals. In vitro, Them5 shows strong thioesterase activity with long-chain acyl-CoAs. Loss of Them5 specifically alters the remodeling process of the mitochondrial phospholipid cardiolipin. Them5(-/-) mice show deregulation of lipid metabolism and the development of fatty liver, exacerbated by a high-fat diet. Consequently, mitochondrial morphology is affected, and functions such as respiration and β-oxidation are impaired. The novel mitochondrial acyl-CoA thioesterase Them5 has a critical and specific role in the cardiolipin remodeling process, connecting it to the development of fatty liver and related conditions.


    Organizational Affiliation

    Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland. elena.zhuravleva@fmi.ch




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
THIOESTERASE SUPERFAMILY MEMBER 5
A
220Homo sapiensMutation(s): 0 
Gene Names: THEM5 (ACOT15)
EC: 3.1.2.2
Find proteins for Q8N1Q8 (Homo sapiens)
Go to Gene View: THEM5
Go to UniProtKB:  Q8N1Q8
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.171 
  • R-Value Work: 0.140 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 45.389α = 90.00
b = 88.634β = 90.00
c = 105.323γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
XSCALEdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-07-11
    Type: Initial release