[Inactivation of reporter genes by cloned heterochromatic repeats of Drosophila melanogaster is accompanied by chromatin compaction]статья
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Аннотация:Cloned Stellate heterochromatic repeats caused unstable mosaic inactivation (position effect variegation; PEV) of the reporter gene mini-white. A number of known protein modifiers of the classical position effect induced by large heterochromatin blocks do not affect the expression of mini-white. This raises the question as to the specificity of chromatin compaction around the reporter gene. The inactivation of the mini-white gene has been found to be accompanied by a decrease in its methylation catalyzed by Escherichia coli dam-methyltransferase expressed in the genome of Drosophila. However, no changes in the nucleosome organization of mini-white have been found.