4AE8

Crystal structure of human THEM4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.187 

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:  
    4AE7, 4AE8

  • 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 described. Here, we present a structural and functional analysis of a new mammalian mitochondrial thioesterase, Them5 ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
THIOESTERASE SUPERFAMILY MEMBER 4A, B, C, D211Homo sapiensMutation(s): 0 
Gene Names: THEM4CTMP
EC: 3.1.2.2
Find proteins for Q5T1C6 (Homo sapiens)
Explore Q5T1C6 
Go to UniProtKB:  Q5T1C6
NIH Common Fund Data Resources
PHAROS:  Q5T1C6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.187 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.539α = 89.96
b = 58.211β = 71.14
c = 69.681γ = 64.6
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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