Detailed Information on Publication Record
2005
The fucose-binding lectin from Ralstonia solanacearum: a new type of beta-propeller architecture formed by oligomerisation and interacting with fucoside, fucosyllactose and plant xyloglucan
KOSTLÁNOVÁ, Nikola, Edward MITCHELL, Hugues LORTAT-JACOB, Stefan OSCARSON, Martina LAHMANN et. al.Basic information
Original name
The fucose-binding lectin from Ralstonia solanacearum: a new type of beta-propeller architecture formed by oligomerisation and interacting with fucoside, fucosyllactose and plant xyloglucan
Name in Czech
Fukosu vazajici lektin z Ralstonia solanacearum: novy typ beta barelu tvoreny oligomerizaci a interakce s fukosidem, fukosyllaktosou a rostlinnym xyloglukanem
Authors
KOSTLÁNOVÁ, Nikola (203 Czech Republic), Edward MITCHELL (826 United Kingdom of Great Britain and Northern Ireland), Hugues LORTAT-JACOB (250 France), Stefan OSCARSON (752 Sweden), Martina LAHMANN (752 Sweden), Nechama GILBOA-GARBER (376 Israel), Gerard CHAMBAT (250 France), Michaela WIMMEROVÁ (203 Czech Republic, guarantor) and Anne IMBERTY (250 France)
Edition
Journal of Biological Chemistry, Bethesda, USA, Amer. Soc. Biochem. Mol. Biol. 2005, 0021-9258
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10600 1.6 Biological sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 5.854
RIV identification code
RIV/00216224:14310/05:00013768
Organization unit
Faculty of Science
UT WoS
000230678600045
Keywords in English
lectin; Ralstonia solanacearum; crystal structure; propeller; SPR
Tags
International impact, Reviewed
Změněno: 4/1/2007 15:32, prof. RNDr. Michaela Wimmerová, Ph.D.
V originále
Plant pathogens, as animal ones, use protein-carbohydrate interactions in their strategy for host recognition, attachment and invasion. The bacterium Ralstonia solanacearum which is distributed worldwide and causes lethal wilt in many agricultural crops, was shown to produce a potent L-fucose-binding lectin, RSL, a small protein of 90 amino acids with a tandem repeat in its amino acid sequence. In the present study, surface plasmon resonance experiments conducted on a series of oligosaccharides show a preference for binding to áFuc1-2Gal and áFuc1-6Gal epitopes. Titration microcalorimetry demonstrates the presence of two binding sites per monomer and an unusually high affinity of the lectin for áFuc1-2Gal containing oligosaccharides (KD 2.5 10-7 M for 2-fucosyllactose). RSL has been crystallised with a methyl derivative of fucose and with the highest affinity ligand, 2-fucosyllactose. X-ray crystal structures, the one with á-methyl-fucoside being at ultra-high resolution, reveal that each monomer consists of two small fourstranded anti-parallel â-sheets. Trimerisation through 3-fold or pseudo 3- fold axis generates a six-bladed â-propeller architecture, very similar to that previously described for the fungal lectin of Aleuria aurantia. This is the first report of a â- propeller formed by oligomerisation and not by sequential domains. Each monomer presents two fucose binding sites, resulting in six symmetrically arranged sugar binding sites for the â-propeller. Crystals were also obtained for a mutated lectin complexed with a fragment of xyloglucan, a fucosylated polysaccharides from the primary cell wall of plants, which may be the biological target of the lectin.
In Czech
Fukosu vazajici lektin z Ralstonia solanacearum: novy typ beta barelu tvoreny oligomerizaci a interakce s fukosidem, fukosyllaktosou a rostlinnym xyloglukanem
Links
LN00A016, research and development project |
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MSM0021622413, plan (intention) |
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