2003
Pseudomonas aeruginosa lectin PA-IIL displays a novel carbohydrate recognition mode: Structural analysis of complexes with fucose and oligosaccharides.
IMBERTY, Anne, Albert M. WU, Michaela WIMMEROVÁ, Corrine HOULES, Edward MITCHELL et. al.Základní údaje
Originální název
Pseudomonas aeruginosa lectin PA-IIL displays a novel carbohydrate recognition mode: Structural analysis of complexes with fucose and oligosaccharides.
Autoři
IMBERTY, Anne (250 Francie), Albert M. WU (158 Tchaj-wan), Michaela WIMMEROVÁ (203 Česká republika, garant), Corrine HOULES (250 Francie), Edward MITCHELL (250 Francie), Dvora SUDAKEVITZ (376 Izrael) a Nechama GILBOA-GARBER (376 Izrael)
Vydání
Bangalore, Indie, XVII International Symposium on Glycoconjugates, s. 34-34, 2003
Nakladatel
AS
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Indie
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/03:00008867
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
Pseudomonas aeruginosa; lectin; crystal structure; cystic fibrosis
Příznaky
Mezinárodní význam
Změněno: 15. 11. 2006 11:39, prof. RNDr. Michaela Wimmerová, Ph.D.
Anotace
V originále
Pseudomonas aeruginosa galactose (PA-IL) and fucose-binding (PA-IIL) lectins contribute to the virulence of this pathogenic bacterium. Determination of the crystal structure of PA-IIL complexed with fucose demonstrates a tetrameric structure. Each monomer displays a nine-stranded antiparallel b-sandwich arrangement and contains two calcium cations in one binding site. In each monomer, the calcium binding pocket is formed by two b-strand-connecting loops together with the C-terminal extremity of the adjacent monomer. The fucose-lectin interaction is mediated by the two calcium ions. Such a binding mode is unique in carbohydrate-protein recognition. Three of the fucose hydroxyl groups participate in the coordination spheres of the two calcium ions. Experimental binding studies together with theoretical docking of fucose-containing oligosaccharides are consistent with the assumptions that antigens of the Lewis A series might be the preferred ligands of this lectin. Precise knowledge of the lectin binding site, should allow for a better design of new antiadhesive glycoderived or glycomimetic drugs.
Návaznosti
LN00A016, projekt VaV |
|