Simultaneous determination of binding constants for multiple carbohydrate hosts in complex mixtures

J Am Chem Soc. 2014 Aug 13;136(32):11284-7. doi: 10.1021/ja506130q. Epub 2014 Jul 30.

Abstract

We describe a simple method for the simultaneous determination of association constants for a guest binding to seven different hosts in a mixture of more than 20 different oligosaccharides. If the binding parameters are known for one component in the mixture, a single NMR titration suffices to determine binding constants for all other detectable and resolvable hosts. With the use of high-resolution (1)H-(13)C HSQC experiments, complexes of amphiphiles with more than 10 different maltooligosaccharides can be resolved. Hereby, the binding capabilities of a set of structurally related hosts can be quantitatively studied to systematically explore noncovalent interactions without the need to isolate each host.

MeSH terms

  • Cyclodextrins / chemistry*
  • Nuclear Magnetic Resonance, Biomolecular / methods*

Substances

  • Cyclodextrins