6FRL

BrvH, a flavin-dependent halogenase from Brevundimonas sp. BAL3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

A flavin-dependent halogenase from metagenomic analysis prefers bromination over chlorination.

Neubauer, P.R.Widmann, C.Wibberg, D.Schroder, L.Frese, M.Kottke, T.Kalinowski, J.Niemann, H.H.Sewald, N.

(2018) PLoS ONE 13: e0196797-e0196797

  • DOI: 10.1371/journal.pone.0196797

  • PubMed Abstract: 
  • Flavin-dependent halogenases catalyse halogenation of aromatic compounds. In most cases, this reaction proceeds with high regioselectivity and requires only the presence of FADH2, oxygen, and halide salts. Since marine habitats contain high concentra ...

    Flavin-dependent halogenases catalyse halogenation of aromatic compounds. In most cases, this reaction proceeds with high regioselectivity and requires only the presence of FADH2, oxygen, and halide salts. Since marine habitats contain high concentrations of halides, organisms populating the oceans might be valuable sources of yet undiscovered halogenases. A new Hidden-Markov-Model (HMM) based on the PFAM tryptophan halogenase model was used for the analysis of marine metagenomes. Eleven metagenomes were screened leading to the identification of 254 complete or partial putative flavin-dependent halogenase genes. One predicted halogenase gene (brvH) was selected, codon optimised for E. coli, and overexpressed. Substrate screening revealed that this enzyme represents an active flavin-dependent halogenase able to convert indole to 3-bromoindole. Remarkably, bromination prevails also in a large excess of chloride. The BrvH crystal structure is very similar to that of tryptophan halogenases but reveals a substrate binding site that is open to the solvent instead of being covered by a loop.


    Organizational Affiliation

    Physical Chemistry (PCIII), Bielefeld University, Bielefeld, Germany.,Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany.,Organic and Bioorganic Chemistry (OCIII), Bielefeld University, Bielefeld, Germany.,Structural Biochemistry (BCIV), Bielefeld University, Bielefeld, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tryptophan halogenase superfamily
A, B
511Brevundimonas sp. BAL3Mutation(s): 0 
Find proteins for B4WBL8 (Brevundimonas sp. BAL3)
Go to UniProtKB:  B4WBL8
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

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Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
TLA
Query on TLA

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Download CCD File 
A, B
L(+)-TARTARIC ACID
C4 H6 O6
FEWJPZIEWOKRBE-JCYAYHJZSA-N
 Ligand Interaction
MES
Query on MES

Download SDF File 
Download CCD File 
A, B
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.195 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 180.620α = 90.00
b = 88.350β = 99.07
c = 70.110γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
REFMACrefinement
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-05-23
    Type: Initial release