Search Results - "TSANEV, Roumen"

Protamine-histone replacement and DNA replication in the male mouse pronucleus by Nonchev, S, Tsanev, R

“…The protamine to histone replacement in fertilized mouse eggs was studied by using antibodies to these proteins. Its course was followed with respect to DNA…”
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From chemical embryology to nucleosome patterning - an interview with Roumen G. Tsanev by Tsanev, Roumen G

“…Roumen Tsanev was a prominent Bulgarian scientist whose pioneering ideas about the role for chromatin in cell differentiation and development led him to…”
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A modified kynurenine bioassay for quantitative determination of human interferon-γ by Boyanova, Maya, Tsanev, Roumen, Ivanov, Ivan

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Stably DNA-bound chromosomal proteins by TSANEV, R, AVRAMOVA, Z

“…DNA accomplishes its biological function in a complex with nuclear proteins. A minor protein fraction has been found in chromatin which could not be…”
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Dissociation Equilibrium of Human Recombinant Interferon γ by Boteva, Raina, Zlateva, Theodora, Dorovska-Taran, Victoria, Visser, Antonie J. W. G, Tsanev, Roumen, Salvato, Benedetto

“…The biologically active form of interferon γ is a dimer composed of two noncovalently bound identical polypeptide chains of 17 kDa each. In this study, it was…”
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Stable DNA-protein complexes in eukaryotic chromatin by Avramova, Z, Tsanev, R

“…Demembranized sperm and somatic nuclei of mammalian origin were extracted with high salt/urea/2-mercaptoethanol, treated with detergents and purified in CsCl…”
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Histone H1 Deposition and Histone-DNA Interactions in Replicating Chromatin by Bavykin, Sergei, Srebreva, Ljuba, Banchev, Todor, Tsanev, Roumen, Zlatanova, Jordanka, Mirzabekov, Andrei

“…An immunochemical method for analyzing protein interactions with BrdUrd-substituted DNA was used to study binding of histones to nascent DNA in nuclei. The…”
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Effect of mechanical pressure on c-fos and on the mitotic activity of epidermal cells by Tsanev, R, Yaneva, J, Vaptzarova, K, Markov, D

“…A dosed mechanical pressure of 12.5 kg/cm2 applied for 1 min on depilated mouse skin did not cause cellular death or visible alterations of the cellular…”
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DNA sequences tightly bound to proteins in mouse chromatin: identification of murine MER sequences by Avramova, Z, Georgiev, O, Tsanev, R

“…The finding of stably (tightly) associated DNA-protein complexes in eukaryotic chromatin has provoked many hypotheses and speculations concerning their…”
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Nuclear matrix and transcriptional activity of the mouse alpha-globin gene by Kirov, N, Djondjurov, L, Tsanev, R

“…The association of the mouse alpha-globin gene with the nuclear matrix was studied when the gene was permanently repressed in Ehrlich ascites cells,…”
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Interaction of histones H1 and H1° with superhelical and linear DNA by Yaneva, Julia, Zlatanova, Jordanka, Paneva, Elena, Srebreva, Ljuba, Tsanev, Roumen

“…By using direct competition experiments, the binding of histone H1AB (a mixture of H1A and H1B) and H1° to superhelical and linear DNA forms was studied. Mouse…”
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protein fraction stably linked to DNA in plant chromatin by Avramova, Z, Ivanchenko, M, Tsanev, R

“…DNA from the chromatin of roots and shoots of maize seedlings was isolated and extensively deproteinized by repeated high-salt extractions, by subsequent…”
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Histone variants in mouse centromeric chromatin by Russanova, V, Stephanova, E, Pashev, I, Tsanev, R

“…Highly purified centromeric heterochromatin was isolated from mouse liver nuclei and the pattern of core histone variants was analyzed. In comparison with…”
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Biochemical and ultrastructural study of the sperm chromatin from Mytilus galloprovincialis by Avramova, Z, Zalensky, A, Tsanev, R

“…Protein composition and ultrastructure of the mature spermatozoa of the mussel Mytilus galloprovincialis were studied upon gradual decondensation of the nuclei…”
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Nucleosome segregation in chromatin replicated in the presence of cycloheximide by Pospelov, V, Russev, G, Vassilev, L, Tsanev, R

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Immunological evidence for the existence of H1‐like histone in yeast by SREBREVA, Ljuba, ZLATANOVA, Jordanka, MILOSHEV, George, TSANEV, Roumen

“…In view of the controversies about the existence of histone H1 in yeast we have reinvestigated the problem by studying yeast proteins extracted with perchloric…”
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Distribution of Newly Synthesized Histones during DNA Replication by Tsanev, Roumen, Russev, Georgi

“…A procedure has been developed which allows the separation of chromatin into two fractions highly enriched in preexisting and in newly synthesized DNA,…”
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DNA-associated proteins of ram sperm nuclei by Avramova, Zoya, Dessev, George, Tsanev, Roumen

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An evolutionarily conserved protein fraction stably linked to DNA by Avramova, Z, Mikhailov, I, Tsanev, R

“…Chromatins from four evolutionarily remote species (insect, fish, amphibian and bird) were isolated, high-salt-extracted and extensively deproteinized to…”
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Ultrastructure of Free Ribonucleoprotein Complexes in Spread Mammalian Nuclei by Tsanev, Roumen Georgiev, Djondjurov, Lalio Petrov

“…Mouse erythroleukemia cell nuclei obtained by three different methods were spread for electron microscopy under low ionic conditions. It was found that this…”
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