The perplexities of ZC3H12A self-mRNA regulation
Abstract
The mechanisms regulating transcripts turnover are key processes in the regulation of gene expression. The list of proteins involved in mRNAs degradation is still growing, however, the details of RNase-mRNAs interaction are not fully understood. ZC3H12A is a recently discovered inflammation-related RNase engaged in the control of proinflammatory cytokines transcripts turnover. ZC3H12A regulates also its own transcript half-live. We studied the details of this regulation. Our results confirm the importance of the 3’UTR in ZC3H12A-dependent ZC3H12A mRNA degradations. We compared mouse and human stem‑loop structures present in this region and discovered that human conserved stem-loop structure is not sufficient for ZC3H12A-dependent degradation. However, this structure is important for ZC3H12A mRNA post-transcriptional regulation. Our studies emphasize the importance of surroundings of the identified stem-loop structure for its biological activity. Removing of this region together with stem-loop structure greatly inhibits ZC3H12A regulation of the investigated 3’-untranslated region (3’UTR).
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