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2011 | 9 | 6 | 1046-1055
Tytuł artykułu

Influence of amino acid sequence on the interaction of short peptides containing 3-[2-(9-anthryl)benzoxazol-5-yl]-alanine with β-cyclodextrin

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The influence of peptide sequence and Leu chirality in linear and cyclic peptides containing 3-[2-(9-anthryl)benzoxazol-5-yl]alanine on interaction with β-cyclodextrin were studied using fluorescence and NMR spectroscopy. The analysis of enthalpy-entropy compensation effect (α=1.05±0.02 and TΔS00=15.1±0.5 kJ mol−1) indicates that the entropic contribution connected with the solvent reorganization is the major factor governing the peptides-β-cyclodextrin complexation. Moreover, spatial orientation of guest-host molecule depends more than association constant on Leu residue configuration. However, the cyclization of the peptide chain substantially decrease the association constant with β-CD. An analysis of 2D NMR spectra reveals that inclusion complex is formed by penetration of cyclodextrin cavity from wider and narrow rims by anthryl group in the case of Box(Ant)-SPKL or anthryl and Leu residues for Box(Ant)-SPK(D)L analogue. [...]
Wydawca

Czasopismo
Rocznik
Tom
9
Numer
6
Strony
1046-1055
Opis fizyczny
Daty
wydano
2011-12-01
online
2011-09-27
Twórcy
  • Faculty of Chemistry, University of Gdańsk, 80-952, Gdańsk, Poland
  • Faculty of Chemistry, University of Gdańsk, 80-952, Gdańsk, Poland
  • Faculty of Chemistry, University of Gdańsk, 80-952, Gdańsk, Poland
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-011-0103-x
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