Download MendeleyBinding of Different Monosaccharides by Lectin Pa-Iil from Pseudoman Aeruginosa: Thermodynamics Data Correlated with X-Ray Structures.
Sabin, C.D., Mitchell, E.P., Pokarna, M., Gautier, C., Utille, J.-P., Wimmerova, M., Imberty, A.(2006) FEBS Lett 580: 982
- PubMed: 16438968
- DOI: https://doi.org/10.1016/j.febslet.2006.01.030
- Primary Citation of Related Structures:
2BOJ, 2BP6 - PubMed Abstract:
The lectin from Pseudomonas aeruginosa (PA-IIL) is involved in host recognition and biofilm formation. Lectin not only displays an unusually high affinity for fucose but also binds to L-fucose, L-galactose and D-arabinose that differ only by the group at position 5 of the sugar ring. Isothermal calorimetry experiments provided precise determination of affinity for the three methyl-glycosides and revealed a large enthalpy contribution. The crystal structures of the complexes of PA-IIL with L-galactose and Met-beta-D-arabinoside have been determined and compared with the PA-IIL/fucose complex described previously. A combination of the structures and thermodynamics provided clues for the role of the hydrophobic group in affinity.
Organizational Affiliation:
CERMAV-CNRS (affiliated with Université Joseph Fourier), 601 rue de la Chimie, Grenoble BP53, F-38041 Grenoble cedex 09, France.
