STUDY OF THE IN VIVO FUNCTIONAL ROLE OF MUTATIONS IN THE BTB DOMAIN OF THE CP190 PROTEIN OF DROSOPHILA MELANOGASTER

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详细

The Drosophila transcription factor СР190 is one of the key proteins that determine the activity of housekeeping gene promoters and insulators. CP190 has an N-terminal BTB domain that allows for dimerization. Many of known Drosophila architectural proteins interact with the hydrophobic peptide-binding groove in the BTB domain, which is supposed to be one of the mechanisms for recruiting CP190 to regulatory elements. To study the role of the BTB domain in the interaction with architectural proteins, we obtained transgenic flies expressing CP190 variants with mutations in the peptide-binding groove, which disrupts their interaction with architectural proteins. As a result of the studies, it was found that mutations in the BTB domain do not affect binding of the CP190 protein to polytene chromosomes. Thus, our studies confirm the previously obtained data that CP190 is recruited to regulatory elements by several transcription factors interacting in addition to BTB with other CP190 domains.

作者简介

A. Fedotova

Institute of Gene Biology, Russian Academy of Sciences

Email: bonchuk_a@genebiology.ru
Russian Federation, Moscow

P. Georgiev

Institute of Gene Biology, Russian Academy of Sciences

Email: bonchuk_a@genebiology.ru
Russian Federation, Moscow

A. Bonchuk

Institute of Gene Biology, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: bonchuk_a@genebiology.ru
Russian Federation, Moscow

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版权所有 © А.А. Федотова, П.Г. Георгиев, А.Н. Бончук, 2023
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