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Article
Solid phase reaction of hemoglobin with spillover hydrogen
The reaction of high-temperature solid-state catalytic isotope exchange (HSCIE) between bovine hemoglobin and spillover hydrogen (SH) was studied. It was shown that, in the field of subunit contact, there is a...
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Article
A comparative analysis of the distribution of glyprolines after their administration by different ways
The distribution of the glyprolines, Pro-Gly-Pro and Thr-Lys-Pro-Arg-Pro-Gly-Pro (Selanc), was analyzed and compared in tissues of rat organs after different ways of their administration using the peptides uni...
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Article
Degradation of the ACTH(4-10) analog Semax in the presence of rat basal forebrain cell cultures and plasma membranes
Here a new approach of the elucidation of paths of proteolytic biodegradation of physiologically active peptides, based on the use of a peptide with isotopic label at all amino acid residues and the enrichment...
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Article
Evenly tritium labeled peptides in study of peptide in vivo and in vitro biodegradation
Biologically active peptides evenly labeled with tritium were used for studying the in vitro and in vivo biodegradation of the peptides. Tritium-labeled peptides with a specific radioactivity of 50–150 Ci/mmol...
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Article
The Binding of Semax, ACTH 4–10 Heptapeptide, to Plasma Membranes of the Rat Forebrain Basal Nuclei and Its Biodegradation
The binding characteristics of the peptide Semax (Met-Glu-His-Phe-Pro-Gly-Pro) to plasma membranes of basal nuclei of the rat forebrain and the dynamics of its degradation during its incubation with these memb...
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Article
New development in the tritium labelling of peptides and proteins using solid catalytic isotopic exchange with spillover-tritium
The mechanism of the reaction of high temperature solid state catalytic isotope exchange (HSCIE) of hydrogen in peptides with spillover-tritium at 140–180°C was analyzed. This reaction was used for preparing [3H...
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Article
Stereoselective effects in the solid-phase hydrogenation of unsaturatedl-hydroxyproline derivatives
The solid-phase catalytic hydrogenation of (R-4tert-butoxy-Δ1-pyrroline-2-carboxylic) acid under the action of hydrogen spillover was studied. The reaction proceeds stereoselectively with the predominant formatio...
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Article
Study of the solid-state hydrogen isotope exchange ofl-alanine
The solid-state reaction of isotope exchange ofl-alanine (l-Ala) with spillover-hydrogen activated on a Rh(Pd)-supported catalyst was studied. The reactivity of the carbon atoms and the activation energies of iso...
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Article
The solid-state catalytic synthesis of tritium labeled amino acids, peptides and proteins
New catalytic reaction between a solid bioorganic compound and activated spillover tritium (ST), based on High-temperature Solid-state Catalytic Isotopic Exchange (HSCIE) was examined. The HSCIE mechanism and ...
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Article
High temperature solid state catalytic isotope exchange with deuterium and tritium
A method for synthesizing tritium- or deuterium-labeled amino acids, peptides and biogenic amines through high temperature solid state catalytic isotope exchange (HSCIE) is proposed. The dependence of the degr...