Detailed Information on Publication Record
2005
High affinity fucose binding of Pseudomonas aeruginosa lectin PA-IIL: 1.0 A resolution crystal structure of the complex combined with thermodynamics and computational chemistry approaches
MITCHELL, Edward, Charles SABIN, Lenka ŠNAJDROVÁ, Martina POKORNÁ, Stephanie PERRET et. al.Basic information
Original name
High affinity fucose binding of Pseudomonas aeruginosa lectin PA-IIL: 1.0 A resolution crystal structure of the complex combined with thermodynamics and computational chemistry approaches
Name in Czech
Vysoká afinita vazby fukosy u lektinu Pseudomonas aeruginosa lectin PA-IIL: krystalová struktura komplexu s vysokým rozlišením 1.0 A v kombinaci s termodynamickými metodami a přístupy výpočetní chemie
Authors
MITCHELL, Edward (250 France), Charles SABIN (250 France), Lenka ŠNAJDROVÁ (203 Czech Republic), Martina POKORNÁ (203 Czech Republic), Stephanie PERRET (250 France), Catherine GAUTIER (250 France), Ctirad HOFR (203 Czech Republic), Nechama GILBOA-GARBER (376 Israel), Jaroslav KOČA (203 Czech Republic), Michaela WIMMEROVÁ (203 Czech Republic, guarantor) and Anne IMBERTY (250 France)
Edition
Proteins: Structure, Function, and Bioinformatics, Wiley, 2005, 0887-3585
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: 4.684
RIV identification code
RIV/00216224:14310/05:00013567
Organization unit
Faculty of Science
UT WoS
000226695900022
Keywords in English
lectin; Pseudomonas aeruginosa; cystic fibrosis; crystal structure
Tags
International impact, Reviewed
Změněno: 4/1/2007 15:32, prof. RNDr. Michaela Wimmerová, Ph.D.
V originále
PA-IIL is a fucose-binding lectin from Pseudomonas aeruginosa that is closely related to the virulence factors of the bacterium. Previous structural studies have revealed a new carbohydrate-binding mode with direct involvement of two calcium ions (Mitchell E, Houles C, Sudakevitz D, Wimmerova M, Gautier C, Perez S,Wu AM, Gilboa-Garber N Imberty A. Structural basis for selective recognition of oligosaccharides from cystic fibrosis patients by the lectin PA-IIL of Pseudomonas aeruginosa. Nat Struct Biol 2002;9:918921). A combination of thermodynamic, structural, and computational methods has been used to study the basis of the high affinity for the monosaccharide ligand. A titration microcalorimetry study indicated that the high affinity is enthalpy driven. The crystal structure of the tetrameric PA-IIL in complex with fucose and calcium was refined to 1.0 Ĺ resolution and, in combination with modeling, allowed a proposal to be made for the hydrogen-bond network in the binding site. Calculations of partial charges using ab initio computational chemistry methods indicated that extensive delocalization of charges between the calcium ions, the side chains of the protein- binding site and the carbohydrate ligand is responsible for the high enthalpy of binding and therefore for the unusually high affinity observed for this unique mode of carbohydrate recognition.
In Czech
Vysoká afinita vazby fukosy u lektinu Pseudomonas aeruginosa lectin PA-IIL: krystalová struktura komplexu s vysokým rozlišením 1.0 A v kombinaci s termodynamickými metodami a přístupy výpočetní chemie
Links
LN00A016, research and development project |
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MSM0021622413, plan (intention) |
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