Search results for: Oksana Maksimenko
Transgenic Research > 2019 > 28 > 3-4 > 401-410
BMC Biology > 2015 > 13 > 1 > 1-23
Journal of Molecular Biology > 2011 > 412 > 3 > 423-436
Molecular Cell > 2007 > 27 > 2 > 332-338
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Expression of the reporter gene in transgenic animals depends on the surrounding chromatin environment. Recent genome-wide studies have shown that, in mammals, the entire genome is transcribed. Transcription through a transgene often has a negative effect on the expression of a reporter gene. Here, we compared the ability of well-studied chicken chromatin insulator HS4 and bidirectional transcription...
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Background Insulators play a central role in gene regulation, chromosomal architecture and genome function in higher eukaryotes. To learn more about how insulators carry out their diverse functions, we have begun an analysis of the Drosophila CTCF (dCTCF). CTCF is one of the few insulator proteins known to be conserved from flies to man. Results In the studies reported here we have focused on the...
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The BTB (bric-a-brac, tramtrack and broad complex)/POZ (poxvirus and zinc finger) domain is a conserved protein–protein interaction motif contained in a variety of transcription factors involved in development, chromatin remodeling, insulator activity, and carcinogenesis. All well-studied mammalian BTB domains form obligate homodimers and, rarely, tetramers. Only the BTB domain of the Drosophila GAGA...
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A system for production of single-chain antibody in mammary glands of mice was developed on the basis of a hybrid gene constructed from the coding sequence of anti-Her2/neu single-chain antibody inserted into the first exon of the sheep beta-lactoglobulin gene. Lines of transgenic mice were obtained that expressed humanized single-chain anti-Her2/neu IgG1-like antibody in their milk. These antibodies...
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Chromatin insulators affect interactions between promoters and enhancers/silencers and function as barriers for spreading of repressive chromatin. The Su(Hw) protein is responsible for activity of the best-studied Drosophila insulators. Here we demonstrate that an evolutionarily conserved protein, E(y)2/Sus1, is recruited to the Su(Hw) insulators via binding to the zinc-finger domain of Su(Hw). Partial...
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