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Gene regulation at the post-transcriptional level is frequently based on cis- and trans-acting factors on target mRNAs. We found a C-rich element (CRE) in mu-opioid receptor (MOR) 3′-untranslated region (UTR) to which poly (rC) binding protein 1 (PCBP1) binds, resulting in MOR mRNA stabilization. RNA immunoprecipitation and RNA EMSA revealed the formation of PCBP1-RNA complexes at the element. Knockdown...
Carotenoids are one of the most common classes of natural pigments widely occurring within organisms. These structurally diverse pigments are of great importance in different processes such as nutrition, vision, cellular growth and development. While found in various yeast strains, one of the best-studied carotenoid producer is the pigmented species Sporidiobolus pararoseus. However, the precise nature...
Poly(C)-binding proteins (PCBPs) are generally known as RNA-binding proteins that interact in a sequence-specific manner with single-stranded poly(C) sequences. These proteins are mainly involved in various posttranscriptional regulations (e.g., mRNA stabilization or translational activation/silencing). This study reports a novel dual-binding function for PCBP3, a member of the PCBP family. Recombinant...
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