Mycobacterium tuberculosis fatty acyl CoA synthetase

Experimental Data Snapshot

  • Resolution: 1.80 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.164 

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This is version 1.3 of the entry. See complete history


The Mycobacterium tuberculosis Very-Long-Chain Fatty Acyl-CoA Synthetase: Structural Basis for Housing Lipid Substrates Longer than the Enzyme.

Andersson, C.S.Lundgren, C.A.Magnusdottir, A.Ge, C.Wieslander, A.Martinez Molina, D.Hogbom, M.

(2012) Structure 20: 1062-1070

  • DOI: https://doi.org/10.1016/j.str.2012.03.012
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The Mycobacterium tuberculosis acid-induced operon MymA encodes the fatty acyl-CoA synthetase FadD13 and is essential for virulence and intracellular growth of the pathogen. Fatty acyl-CoA synthetases activate lipids before entering into the metabolic pathways and are also involved in transmembrane lipid transport. Unlike soluble fatty acyl-CoA synthetases, but like the mammalian integral-membrane very-long-chain acyl-CoA synthetases, FadD13 accepts lipid substrates up to the maximum length tested (C(26)). Here, we show that FadD13 is a peripheral membrane protein. The structure and mutational studies reveal an arginine- and aromatic-rich surface patch as the site for membrane interaction. The protein accommodates a hydrophobic tunnel that extends from the active site toward the positive patch and is sealed by an arginine-rich lid-loop at the protein surface. Based on this and previous data, we propose a structural basis for accommodation of lipid substrates longer than the enzyme and transmembrane lipid transport by vectorial CoA-esterification.

  • Organizational Affiliation

    Stockholm Center for Biomembrane Research, Department of Biochemistry and Biophysics, Stockholm University, Arrhenius Laboratories for Natural Sciences C4, SE-10691 Stockholm, Sweden.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
fatty acyl CoA synthetase FADD13 (FATTY-ACYL-CoA SYNTHETASE)517Mycobacterium tuberculosisMutation(s): 0 
Gene Names: fadD13MT3174Rv3089
EC: 6.2.1
Find proteins for P9WQ37 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WQ37 
Go to UniProtKB:  P9WQ37
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WQ37
Sequence Annotations
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Resolution: 1.80 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.164 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57α = 90
b = 57β = 90
c = 249.18γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-02-08
    Type: Initial release
  • Version 1.1: 2012-05-23
    Changes: Database references
  • Version 1.2: 2012-07-25
    Changes: Database references
  • Version 1.3: 2023-09-13
    Changes: Data collection, Database references, Derived calculations, Refinement description