Detailed Information on Publication Record
2012
Burkholderia cenocepacia lectin A binding to heptoses from the bacterial lipopolysaccharide
MARCHETTI, Roberta, Lenka MALINOVSKÁ, Emilie LAMEIGNERE, Lenka ADAMOVÁ, Cristina DE CASTRO et. al.Basic information
Original name
Burkholderia cenocepacia lectin A binding to heptoses from the bacterial lipopolysaccharide
Authors
MARCHETTI, Roberta (380 Italy), Lenka MALINOVSKÁ (203 Czech Republic, belonging to the institution), Emilie LAMEIGNERE (250 France), Lenka ADAMOVÁ (203 Czech Republic, belonging to the institution), Cristina DE CASTRO (380 Italy), Gianluca CIOCI (250 France), Christian STANETTY (40 Austria), Paul KOSMA (40 Austria), Antonio MOLINARO (380 Italy), Michaela WIMMEROVÁ (203 Czech Republic, guarantor, belonging to the institution), Anne IMBERTY (250 France) and Alba SILIPO (380 Italy)
Edition
Glycobiology, Oxford, Oxford University Press, 2012, 0959-6658
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.537
RIV identification code
RIV/00216224:14740/12:00057548
Organization unit
Central European Institute of Technology
UT WoS
000308011800011
Keywords in English
bacterial lectin;heptose;lipopolysaccharide;NMR;titration microcalorimetry
Tags
International impact, Reviewed
Změněno: 6/4/2013 21:20, Olga Křížová
Abstract
V originále
Bacteria from the Burkholderia cepacia complex (Bcc) cause highly contagious pneumonia among cystic fibrosis (CF) patients. Among them, Burkholderia cenocepacia is one of the most dangerous in the Bcc and is the most frequent cause of morbidity and mortality in CF patients. Indeed, it is responsible of “cepacia syndrome”, a deadly exacerbation of infection, that is the main cause of poor outcomes in lung transplantation. Burkholderia cenocepacia produces several soluble lectins with specificity for fucosylated and mannosylated glycoconjugates. These lectins are present on the bacterial cell surface and it has been proposed that they bind to lipopolysaccharide epitopes. In this work, we report on the interaction of one B. cenocepacia lectin, BC2L-A, with heptose and other manno configured sugar residues. Saturation transfer difference NMR spectroscopy studies of BC2L-A with different mono- and disaccharides demonstrated the requirement of manno configuration with the hydroxyl or glycol group at C6 for the binding process. The crystal structure of BC2L-A complexed with the methyl-heptoside confirmed the location of the carbohydrate ring in the binding site and elucidated the orientation of the glycol tail, in agreement with NMR data. Titration calorimetry performed on monosaccharides, heptose disaccharides and bacterial heptose-containing oligosaccharides and polysaccharides confirmed that bacterial cell wall contains carbohydrate epitopes that can bind to BC2L-A. Additionally, the specific binding of fluorescent BC2L-A lectin on B. cenocepacia bacterial surface was demonstrated by microscopy.
Links
ED1.1.00/02.0068, research and development project |
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GA303/09/1168, research and development project |
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GD301/09/H004, research and development project |
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