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Роль ÐТФ-завиÑÐ¸Ð¼Ñ‹Ñ Ñ„Ð°ÐºÑ‚Ð¾Ñ€Ð¾Ð² в Ñборке Ñ Ñ€Ð¾Ð¼Ð°Ñ‚Ð¸Ð½Ð° на данный момент изучена Ð¿Ð»Ð¾Ñ Ð¾. Одним из факторов, возможно учаÑÑ‚Ð²ÑƒÑŽÑ‰Ð¸Ñ Ð² Ñборке Ñ Ñ€Ð¾Ð¼Ð°Ñ‚Ð¸Ð½Ð°, ÑвлÑетÑÑ Ñ„Ð°ÐºÑ‚Ð¾Ñ€ ACF. Целью работы ÑвлÑлоÑÑŒ изучение влиÑÐ½Ð¸Ñ Ð¼ÑƒÑ‚Ð°Ñ†Ð¸Ð¸ в гене Ñубъединицы Acf1 ÐТФ-завиÑимого фактора Ñборки Ñ Ñ€Ð¾Ð¼Ð°Ñ‚Ð¸Ð½Ð° ACF на Ñффекты, вызываемые дейÑтвием ионизирующей радиации в раннем Ñмбриогенезе дрозофилы. С помощью метода Ñканирующей конфокальной микроÑкопии оценена продолжительноÑть S-фазы клеточного цикла, Ð¿Ð¾Ð»Ð½Ð°Ñ Ð¿Ñ€Ð¾Ð´Ð¾Ð»Ð¶Ð¸Ñ‚ÐµÐ»ÑŒÐ½Ð¾Ñть клеточного цикла на Ñтапе раннего Ñмбриогенеза у Ñмбрионов дрозофилы линий дикого типа и мутантов по гену Acf1. Также получены данные по гибели ÑоматичеÑÐºÐ¸Ñ Ñдер Ñмбрионов дрозофилы линий дикого типа и мутантов по гену Acf1. Полученные данные ÑвидетельÑтвуют о Ñокращении продолжительноÑти S-фазы клеточного цикла у мутантов по гену Acf1, по Ñравнению Ñ Ð»Ð¸Ð½Ð¸ÐµÐ¹ дикого типа, без воздейÑÑ‚Ð²Ð¸Ñ Ð²Ð½ÐµÑˆÐ½Ð¸Ñ Ð”ÐК-Ð¿Ð¾Ð²Ñ€ÐµÐ¶Ð´Ð°ÑŽÑ‰Ð¸Ñ Ñ„Ð°ÐºÑ‚Ð¾Ñ€Ð¾Ð² и поÑле воздейÑÑ‚Ð²Ð¸Ñ Ð¸Ð¾Ð½Ð¸Ð·Ð¸Ñ€ÑƒÑŽÑ‰ÐµÐ³Ð¾ излучениÑ. Гибель большего чиÑла Ñдер у Acf1(7)-мутантов поÑле воздейÑÑ‚Ð²Ð¸Ñ Ð¸Ð¾Ð½Ð¸Ð·Ð¸Ñ€ÑƒÑŽÑ‰ÐµÐ³Ð¾ Ð¸Ð·Ð»ÑƒÑ‡ÐµÐ½Ð¸Ñ ÑƒÐºÐ°Ð·Ñ‹Ð²Ð°ÐµÑ‚ на учаÑтие ÐТФ-завиÑимого Ñ Ñ€Ð¾Ð¼Ð°Ñ‚Ð¸Ð½-аÑÑемблирующего фактора ACF в репарации повреждений ДÐК на Ñтадии делений дроблениÑ.
The role of ATP-dependent chromatin assembly factors in the currently poorly understood. One of the factors, which may participate in the assembly of chromatin, is a factor ACF. The aim of the work was to study the effect of mutations in the gene Acf1 subunit of ATP-dependent chromatin factor ACF assembly on the effects caused by the action of ionizing radiation in the early Drosophila embryogenesis. Using the method of scanning confocal microscope estimated duration of S-phase of the cell cycle, the total duration of the cell cycle at the early stage of embryogenesis in Drosophila embryos of wild-type strains and mutants of the gene Acf1. Also obtained data on the death of somatic nuclei of Drosophila embryos of wild-type strains and mutants by gene Acf1. These data suggest shortening S-phase of the cell cycle in the mutant gene Acf1, compared to the wild-type line, without the influence of external factors, DNA damage after exposure to ionizing radiation. The death of a greater number of cores in Acf1 (7) mutants after exposure to ionizing radiation indicates a part of ATP-dependent chromatin-assembled ACF factor in the repair of DNA damage at the stage of cleavage divisions.
ÐонизиÑÑÑÑие излÑÑениÑ, embryogenesis, мÑÑаÑии, конÑокалÑÐ½Ð°Ñ Ð¼Ð¸ÐºÑоÑкопиÑ, ÐÑклеиновÑе киÑлоÑÑ, ÑмбÑиогенез, mutations, confocal microscopy, ÐлеÑка (биол)
ÐонизиÑÑÑÑие излÑÑениÑ, embryogenesis, мÑÑаÑии, конÑокалÑÐ½Ð°Ñ Ð¼Ð¸ÐºÑоÑкопиÑ, ÐÑклеиновÑе киÑлоÑÑ, ÑмбÑиогенез, mutations, confocal microscopy, ÐлеÑка (биол)
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