Motional properties of two vicinally disubstituted trisaccharides as studied by multiple-field carbon-13 NMR relaxation
Article Abstract:
The motional properties of two vicinally disubstituted trisaccharides were investigated in a solvent mixture of 2H2O:DMSOd6. Multiple-field carbon-13 T1 and T2 NMR relaxation and nuclear Overhauser effect measurements were performed outside the extreme-narrowing regime at three temperatures 283, 303 and 323 degrees K and four magnetic field strengths 6.3, 9.4, 11.7 and 14.1 T. The results showed that the branch-point residue exhibited more restricted mobility than the terminal residues in both trisaccharides.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Exploring the binding of serotonin of the 5-[HT.sub.3] receptor by density functional theory
Article Abstract:
A series of ab initio calculations to evaluate the effects of mutating three tyrosines (Tyr143, Tyr 153 and Tyr243) on the binding of serotonin (5-HT) to 5-[HT.sub.3] receptor, based on the density functional theory are mentioned. The empirical outcomes indicate the presence of hydrogen bond between the 5-HT and Tyr 153 but no between 5-HT and Tyr 143, confirming the data available from previous empirical studies and a unique mixed hydrogen bond/ cation-pie interaction between Tyr 243 and 5-HT is observed.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Probing segmental mobility in the cyanogenic glycoside amygdalin by (super 13)C solid-state NMR
Article Abstract:
Carbon-13 MAS NMR spectroscopy gives information about segmental mobility in disordered solids. NMR is useful to study carbohydrate-protein interactions.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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