Iu S Tarakhovskiĭ

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The dependence of the state of the hydrophobic zone of rabbit sarcoplasmic reticulum (SR) membranes on temperature of the membrane fragment suspension before rapid freezing was studied by the freeze fracturing technique. It was shown that within the temperature range of--15-- +37 degrees C the amount of intramembrane particles and their distribution in the(More)
The biological properties of dihydroquercetin (DHO) modified by including it into the ring of beta-cyclodextrin (beta-CD) to give it more water-soluble properties have been investigated. It was shown that the peroral administration of the DHQ/beta-CD complex provides a long increase of DHQ concentration in rat blood (up to 7.5 h), and, unlike pure DHQ, the(More)
It is demonstrated by thin-section that S. faecalis cells (Strain BKM-B6) have no inner membranes, and their plasma membranes do not show any invagination into the cytoplasm. It is established that B and A fracture faces of the membranes in the intact bacteria, protoplasts, osmotic shock and sonicated membrane fractions contain uniformly distributed(More)
Freeze-fracture electron microscopy has been used to study the ultrastructure of proteolytic enzymes treated of the bovine photoreceptor membranes, the rat liver microsome ghosts and the rabbit sarcoplasmic reticulum membranes. The observed increase in the intramembranous particle number in the inner fracture face suggests transmembrane dipping of(More)
From a comparative analysis of the distribution of hydrophobicity in bacterial and animal (bovine) rhodopsins, the following peculiarities in the structure of these proteins have been assumed: 1) each of these proteins has 5 hydrophobic regions of equal length (20-28 residues) able to be arranged across the membrane and one region of doubled length. 2) The(More)