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Lange M. A. Govyadinova A. A. Khrushchev N. G. 《Russian Journal of Developmental Biology》2000,31(6):372-376
Morphological and autoradiographic studies on various hemopoietic tissues in sturgeon are presented. The classic hemopoietic organs characteristic of lower vertebrates, such as the kidney and spleen, are studied as well as unique hemopoietic structures described only in the evolutionarily most ancient fish species (hemopoietic tissues of cartilaginous skull capsules and epicardium). The intensity of cell divisions in hemopoietic foci has been characterized by autoradiography. The results obtained provide a basis for the revision of traditional views about the phylogeny of hemopoiesis. They provide evidence that the osteogenic gravitation of hemopoietic tissue shows up in evolution alongside the appearance of the inner skeleton. 相似文献
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I. B. Kovalenko S. S. Khrushchev V. A. Fedorov G. Yu. Riznichenko A. B. Rubin 《Doklady. Biochemistry and biophysics》2016,468(1):183-186
Electrostatic interaction of plastocyanin and cytochrome f in the process of protein–protein complex formation was investigated by computer simulation methods. It was shown that long-range electrostatic interaction promotes energetically favorable mutual orientation of protein molecules at distances between their cofactors shorter than 5 nm. At distances shorter than 3 nm, these electrostatic interactions lead to a significantly detectable increase in the rate of convergence of the cofactors. 相似文献
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Branched peptides E(RLAR)2, E[E(RLAR)2]2, E(KLAR)2, and E[E(KLAR)2]2 were synthesized on the basis of tetrapeptides RLAR and KLAR and glutamic acid bis(pentafluorophenyl) ester. Their minimal antimicrobial concentrations were shown to decrease along with increase in branching, achieving 12 microM for Escherichia coli cells, which is comparable to antimicrobial activities of temporin, magainin, and dermaseptin. The branched peptides were found not to act on human erythrocytes. 相似文献
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A. Yu. Khrushchev I. A. Kashparov L. V. Klimenko Yu. V. Mitin 《Russian Journal of Bioorganic Chemistry》2007,33(6):544-548
Branched peptides E(RLAR)2, E[E(RLAR)2]2, and E(KLAR)2, E[E(KLAR)2]2 were synthesized on the basis of tetrapeptides RLAR and KLAR and glutamic acid bis(pentafluorophenyl) ester. Their minimal antimicrobial concentrations were shown to decrease along with increase in branching, achieving 12 μM for Escherichia coli cells, which is comparable to antimicrobial activities of temporin, magainin, and dermaseptin. The branched peptides were found not to act on human erythrocytes. 相似文献
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Free-radical oxidation of biological membrane lipids. VI. Nature of linoleic acid chemiluminescence]
An original scheme of chemoluminescence of unsaturated fat acids is suggested on the basis of analysing the kinetics of peroxide formation, chemoluminescence and fluorescence of linole acid. The agreement of the model with literature and our own experimental data is shown by the method of analogue modelling. 相似文献
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