NMR solution structure of the SYLF domain of Burkholderia pseudomallei BPSL1445

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

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This is version 1.3 of the entry. See complete history


Solution Structure of the BPSL1445 Protein of Burkholderia pseudomallei Reveals the SYLF Domain Three-Dimensional Fold.

Quilici, G.Berardi, A.Fabris, C.Ghitti, M.Punta, M.Gourlay, L.J.Bolognesi, M.Musco, G.

(2022) ACS Chem Biol 17: 230-239

  • DOI: https://doi.org/10.1021/acschembio.1c00886
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The SYLF domain is an evolutionary conserved protein domain with phosphatidylinositol binding ability, whose three-dimensional structure is unknown. Here, we present the solution structure and the dynamics characterization of the SYLF domain of the bacterial BPSL1445 protein. BPSL1445 is a seroreactive antigen and a diagnostic marker of Burkholderia pseudomallei , the etiological agent of melioidosis, a severe infectious disease in the tropics. The BPSL1445 SYLF domain (BPSL1445-SYLF) consists of a β-barrel core, with two flexible loops protruding out of the barrel and three helices packing on its surface. Our structure allows for a more precise definition of the boundaries of the SYLF domain compared to the previously reported one and suggests common ancestry with bacterial EipA domains. We also demonstrate by phosphatidyl-inositol phosphate arrays and nuclear magnetic resonance titrations that BPSL1445-SYLF weakly interacts with phosphoinositides, thus supporting lipid binding abilities of this domain also in prokaryotes.

  • Organizational Affiliation

    Biomolecular NMR Laboratory, I.R.C.C.S. Ospedale San Raffaele, Via Olgettina 58, 20132 Milan, Italy.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lipoprotein163Burkholderia pseudomalleiMutation(s): 0 
Gene Names: BOC42_05350CXQ84_09430DF122_22840ERS013345_04496
Find proteins for Q63UZ9 (Burkholderia pseudomallei (strain K96243))
Explore Q63UZ9 
Go to UniProtKB:  Q63UZ9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ63UZ9
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Fondazione CARIPLOItaly2009-3577
Italian Association for Cancer ResearchItalyIG-214400

Revision History  (Full details and data files)

  • Version 1.0: 2021-12-29
    Type: Initial release
  • Version 1.1: 2022-02-02
    Changes: Database references
  • Version 1.2: 2023-06-14
    Changes: Other
  • Version 1.3: 2024-06-19
    Changes: Data collection, Database references