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Default Unraveling the interaction between the LPS O-antigen of Burkholderia anthina and the 5D8 monoclonal antibody by using a multidisciplinary chemical approach, with synthesis, NMR, and molecular modeling methods.

Unraveling the interaction between the LPS O-antigen of Burkholderia anthina and the 5D8 monoclonal antibody by using a multidisciplinary chemical approach, with synthesis, NMR, and molecular modeling methods.

Related Articles Unraveling the interaction between the LPS O-antigen of Burkholderia anthina and the 5D8 monoclonal antibody by using a multidisciplinary chemical approach, with synthesis, NMR, and molecular modeling methods.

Chembiochem. 2013 Aug 19;14(12):1485-93

Authors: Marchetti R, Canales A, Lanzetta R, Nilsson I, Vogel C, Reed DE, Aucoin DP, Jiménez-Barbero J, Molinaro A, Silipo A

Abstract
The interaction between the O-chain from the lipopolysaccharide from Burkholderia anthina and a lipopolysaccharide-specific monoclonal antibody (5D8) has been studied at high resolution by NMR spectroscopy. In particular, the 5D8-bound epitope of the saccharide entity has been unraveled by a combination of saturation transfer difference (STD) and transferred NOESY (tr-NOESY) experiments performed on the 5D8/polysaccharide complex. To dissect the fine details of the molecular recognition events, further experiments with simpler carbohydrate ligands were carried out. Thus, experiments were also performed with ad hoc synthesized trisaccharide and hexasaccharide O-antigen repeating units. By using this multidisciplinary approach (chemical synthesis, NMR spectroscopy and molecular dynamics simulation), determination of the binding epitope and the contribution to the binding of the sugar units composing the O-chain have been determined.


PMID: 23873779 [PubMed - indexed for MEDLINE]



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