Structure of Nitrincola lacisaponensis flavin-containing monooxygenase (FMO) in complex with FAD and NADP+

Experimental Data Snapshot

  • Resolution: 1.84 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 

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Characterization of a thermostable flavin-containing monooxygenase from Nitrincola lacisaponensis (NiFMO).

Loncar, N.Fiorentini, F.Bailleul, G.Savino, S.Romero, E.Mattevi, A.Fraaije, M.W.

(2019) Appl Microbiol Biotechnol 103: 1755-1764

  • DOI: https://doi.org/10.1007/s00253-018-09579-w
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The flavin-containing monooxygenases (FMOs) play an important role in drug metabolism but they also have a high potential in industrial biotransformations. Among the hitherto characterized FMOs, there was no thermostable representative, while such biocatalyst would be valuable for FMO-based applications. Through a targeted genome mining approach, we have identified a gene encoding for a putative FMO from Nitrincola lacisaponensis, an alkaliphilic extremophile bacterium. Herein, we report the biochemical and structural characterization of this newly discovered bacterial FMO (NiFMO). NiFMO can be expressed as active and soluble enzyme at high level in Escherichia coli (90-100 mg/L of culture). NiFMO is relatively thermostable (melting temperature (T m ) of 51 °C), displays high organic solvent tolerance, and accepts a broad range of substrates. The crystal structure of NiFMO was solved at 1.8 Å resolution, which allows future structure-based enzyme engineering. Altogether, NiFMO represents an interesting newly discovered enzyme with the appropriate features to develop into an industrially applied biocatalyst.

  • Organizational Affiliation

    Groningen Enzyme and Cofactor Collection (GECCO), University of Groningen, Nijenborgh 4, 9747AG, Groningen, The Netherlands.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Small molecule metabolism
A, B
454Nitrincola lacisaponensisMutation(s): 0 
Gene Names: ADINL_0099
Find proteins for A0A063Y6V3 (Nitrincola lacisaponensis)
Explore A0A063Y6V3 
Go to UniProtKB:  A0A063Y6V3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A063Y6V3
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.84 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 
  • Space Group: P 21 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.057α = 90
b = 125.611β = 90
c = 144.725γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number

Revision History  (Full details and data files)

  • Version 1.0: 2019-01-02
    Type: Initial release
  • Version 1.1: 2019-01-09
    Changes: Data collection, Derived calculations
  • Version 1.2: 2019-01-16
    Changes: Data collection, Database references
  • Version 1.3: 2019-03-06
    Changes: Data collection, Database references
  • Version 1.4: 2024-01-24
    Changes: Data collection, Database references, Derived calculations, Refinement description