Outer surface protein BB0689 from Borrelia burgdorferi

Experimental Data Snapshot

  • Resolution: 1.85 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 

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This is version 1.3 of the entry. See complete history


Structural and Functional Analysis of Bb0689 from Borrelia Burgdorferi, a Member of the Bacterial CAP Superfamily.

Brangulis, K.Jaudzems, K.Petrovskis, I.Akopjana, I.Kazaks, A.Tars, K.

(2015) J Struct Biol 192: 320

  • DOI: https://doi.org/10.1016/j.jsb.2015.09.007
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Spirochete Borrelia burgdorferi is the causative agent of Lyme disease and is transmitted from infected Ixodes ticks to a mammalian host after a tick bite. The outer surface protein BB0689 from B. burgdorferi is up-regulated when the tick feeds, which indicates a potential role for BB0689 in Lyme disease pathogenesis. We have determined the crystal structure of BB0689, which revealed that the protein belongs to the CAP superfamily. Though the CAP domain is widespread in all three cellular domains of life, thus far the CAP domain has been studied only in eukaryotes, in which it is usually linked to certain other domains to form a multi-domain protein and is associated with the mammalian reproductive tract, the plant response to pathogens, venom allergens from insects and reptiles, and the growth of human brain tumors. Though the exact function of the isolated CAP domain remains ambiguous, several functions, including the binding of cholesterol, lipids and heparan sulfate, have been recently attributed to different CAP domain proteins. In this study, the bacterial CAP domain structure was analyzed and compared with the previously solved crystal structures of representative CAPs, and the function of BB0689 was examined. To determine the potential function of BB0689 and ascertain whether the functions that have been attributed to the CAP domain proteins are conserved, the binding of previously reported CAP domain interaction partners was analyzed, and the results suggested that BB0689 has a unique function that is yet to be discovered.

  • Organizational Affiliation

    Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia; Latvian Biomedical Research and Study Centre, Ratsupites 1 k-1, LV-1067 Riga, Latvia; Riga Stradins University, Dzirciema 16, LV-1007 Riga, Latvia. Electronic address: kalvis@biomed.lu.lv.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
138Borreliella burgdorferi B31Mutation(s): 0 
Find proteins for O51632 (Borreliella burgdorferi (strain ATCC 35210 / DSM 4680 / CIP 102532 / B31))
Explore O51632 
Go to UniProtKB:  O51632
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO51632
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.85 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.21α = 90
b = 92.21β = 90
c = 96.13γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-10-14
    Type: Initial release
  • Version 1.1: 2015-12-02
    Changes: Database references
  • Version 1.2: 2018-01-17
    Changes: Data collection
  • Version 1.3: 2024-05-08
    Changes: Data collection, Database references, Other