Co-regulated genes and gene clusters

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Abstract

There are many co-regulated genes in eukaryotic cells. The coordinated activation or repression of such genes occurs at specific stages of differentiation, or under the influence of external stimuli. As a rule, co-regulated genes are dispersed in the genome. However, there are also gene clusters, which contain paralogous genes that encode proteins with similar functions. In this aspect, they differ significantly from bacterial operons containing functionally linked genes that are not paralogs. In this review, we discuss the reasons for the existence of gene clusters in vertebrate cells and propose that clustering is necessary to ensure the possibility of selective activation of one of several similar genes.

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Razin, S. V., Ioudinkova, E. S., Kantidze, O. L., & Iarovaia, O. V. (2021). Co-regulated genes and gene clusters. Genes, 12(6). https://doi.org/10.3390/genes12060907

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