1. Candragomin's ‘Letter to a Disciple’ Wenzel, H.
Journal of the Royal Asiatic Society of Great Britain & Ireland,
01/1890, Letnik:
22, Številka:
1
Journal Article
ESR studies on spin-labeled amorphous RNase A as a function of varying concentrations of sorbed H
O and D
O will be presented. A relaxation analysis of saturation transfer (ST-)ESR spectra of
N(
H) ...nitroxide spin-label molecules essentially fixed at amino acid residue His-105 will be given.
A characteristic correlation has been observed between the microdynamic behavior - expressed by the rotational correlation times of the paramagnetic label - and the macroscopic thermodynamic entropy for the sorption process of H
O and D
O at RNase. This correlation is particularly pronounced at low water concentrations, viz., n
/n
≤ 100. A significant difference in this concentration range exists between the two systems “RNase-H
O” and “RNase-D
O”, which is manifested not only by the thermodynamic data but also by the microdynamic behavior extracted from the corresponding non-linear ESR absorption line shapes.