Micro ribonucleic acid (microRNA, miRNA, μRNA) are small, single-stranded, non-coding RNA molecules containing 21–23 nucleotides. [1] .

Jan 19, 2026 · A microRNA (miRNA) is a small molecule in cells, typically about 21–25 nucleotides in length, that plays a crucial role in the regulation of gene expression.

MicroRNAs (miRNAs) are a class of non-coding RNAs that play important roles in regulating gene expression. The majority of miRNAs are transcribed from DNA sequences into primary miRNAs and …

Oct 7, 2024 · Two scientists have been award the 2024 Nobel Prize in Physiology or Medicine for their discovery of microRNA.

microRNA is the name of a family of molecules that helps cells control the kinds and amounts of proteins they make. That is, cells use microRNA to help control gene expression.

Jul 21, 2025 · Within our cells exists a family of tiny molecules called microRNA, which act as regulators of cellular activity. These are not genes that create proteins, but small, non-coding pieces of RNA …

Jun 28, 2023 · Here, we summarize the current understanding of miRNA biogenesis, function and regulation, and outline challenges to address in the future.

MicroRNAs are a class of noncoding RNA molecules. As their name suggests, they are small single-stranded molecules, approximately 19–25 nucleotides long that have recently emerged as pivotal …

Jun 3, 2020 · MicroRNAs (miRNAs) are short, regulatory RNAs that act as post-transcriptional repressors of gene expression in diverse biological contexts.

MicroRNAs, or miRNAs, are non-coding RNA molecules that pair with and selectively silence messenger RNA (mRNA), controlling gene expression and therefore downstream protein synthesis.