Crystal structure of BP39L lectin from Burkholderia pseudomallei at 1.7 A resolution

Experimental Data Snapshot

  • Resolution: 1.70 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.159 

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Characterization of novel lectins from Burkholderia pseudomallei and Chromobacterium violaceum with seven-bladed beta-propeller fold.

Sykorova, P.Novotna, J.Demo, G.Pompidor, G.Dubska, E.Komarek, J.Fujdiarova, E.Houser, J.Haronikova, L.Varrot, A.Shilova, N.Imberty, A.Bovin, N.Pokorna, M.Wimmerova, M.

(2020) Int J Biol Macromol 152: 1113-1124

  • DOI: https://doi.org/10.1016/j.ijbiomac.2019.10.200
  • Primary Citation of Related Structures:  
    6GXR, 6GXS

  • PubMed Abstract: 

    Burkholderia pseudomallei and Chromobacterium violaceum are bacteria of tropical and subtropical soil and water that occasionally cause fatal infections in humans and animals. Microbial lectins mediate the adhesion of organisms to host cells, which is the first phase in the development of infection. Here we report the discovery of two novel lectins from the above-mentioned bacteria - BP39L and CV39L. The crystal structures revealed that the lectins possess a seven-bladed β-propeller fold. Functional studies conducted on a series of oligo- and polysaccharides confirmed the preference of BP39L for mannosylated saccharides and CV39L for rather more complex polysaccharides with a monosaccharide preference for β-l-fucose. The presented data indicate that the proteins belong to a currently unknown family of lectins.

  • Organizational Affiliation

    Department of Biochemistry, Faculty of Science, Masaryk University, Brno, Czech Republic; Central European Institute of Technology, Masaryk University, Brno, Czech Republic.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BP39L lectin370Burkholderia pseudomalleiMutation(s): 0 
Gene Names: CXQ84_12580DP46_150ERS012350_01657
Find proteins for Q63TL0 (Burkholderia pseudomallei (strain K96243))
Explore Q63TL0 
Go to UniProtKB:  Q63TL0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ63TL0
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on SO4

Download Ideal Coordinates CCD File 
O4 S
Experimental Data & Validation

Experimental Data

  • Resolution: 1.70 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.157 
  • R-Value Observed: 0.159 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.076α = 90
b = 87.549β = 90
c = 159.1γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Czech Science FoundationCzech Republic13-25401S
Ministry of Education, Youth and Sports of the Czech RepublicCzech RepublicCEITEC 2020 (LQ1601)

Revision History  (Full details and data files)

  • Version 1.0: 2019-12-04
    Type: Initial release
  • Version 1.1: 2020-05-13
    Changes: Database references