Two-dimensional hyperfine sublevel correlation spectroscopy applied in the study of a Cu(super 2+)-[2-(alpha-hydroxyethyl)thiamin pyrophosphate]-[pentapeptide] system as a model of thiamin-dependent enzymes
Article Abstract:
The synthesis and characterization of a model for the active site of thiamin-dependent enzymes in solution is reported. The data showed that, in the ternary Cu(super 2+)-[pentapeptide]-[HETPP] system at physiological pH, the peptide backbone offers three coordination sites to the metal ion and the coordination sphere is completed by two additional phosphate oxygen and the nitrogen N(1') of the thiamine coenzymes.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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Enthalpy and volume in liquid membranes. I. The proportionality of heat and volume changes in the lipid melting transition and its implication for the elastic
Article Abstract:
The relation between volume and enthalpy changes in the melting regime of lipid membranes is studied by employing differential scanning calorimetry, pressure calorimetry, and densitometry. The study concluded that pressure calorimetry could serve as a valuable tool to measure the proportional relation between volume and enthalpy changes accurately.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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SAC/SAC-CI study of the ground, excited, and ionized states of cytochromes P450CO
Article Abstract:
The ground, excited and ionized states of P450CO were studied by performing five different calculations with the SAC (symmetry adapted cluster)/SAC-CI method. The effect of proteins on the spectrum by using the point charge model for environmental proteins is examined.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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