Dual-function AzuCR RNA modulates carbon metabolism.

Raina, Medha; Aoyama, Jordan J; Bhatt, Shantanu; Paul, Brian J; Zhang, Aixia; Updegrove, Taylor B; Miranda-Ríos, Juan; Storz, Gisela · Proc Natl Acad Sci U S A · 2022

basic_science · Level V

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Abstract

SignificanceWhile most small, regulatory RNAs are thought to be "noncoding," a few have been found to also encode a small protein. Here we describe a 164-nucleotide RNA that encodes a 28-amino acid, amphipathic protein, which interacts with aerobic glycerol-3-phosphate dehydrogenase and increases dehydrogenase activity but also base pairs with two mRNAs to reduce expression. The coding and base-pairing sequences overlap, and the two regulatory functions compete.

Medical subject headings