Abstract
The recognition of tetraaspartate peptide (2) by tetra-guanidinium (1) in (a) water and (b) aqueous methanol (10% H2O/90% CH3OH) has been investigated. The conformations of the free peptide and its complex with 1 have been characterized in both solvent systems by CD and 2D NMR spectroscopies. Increased α-helicity as a result of solvent composition and receptor binding are discussed. Control experiments show that the recognition stems from complementary electrostatic interactions, hydrogen bonding, and matching of surface topologies.
Original language | English (US) |
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Pages (from-to) | 11813-11820 |
Number of pages | 8 |
Journal | Journal of the American Chemical Society |
Volume | 121 |
Issue number | 50 |
DOIs | |
State | Published - Dec 22 1999 |
ASJC Scopus subject areas
- Catalysis
- General Chemistry
- Biochemistry
- Colloid and Surface Chemistry