MicroRNA 548v

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MicroRNA 548v (MIR548V) is a human gene that makes a small non-coding RNA called microRNA-548v. It is located on chromosome 8 at band 8p22 (about 17.68 million base pairs). MicroRNAs are about 20–24 nucleotides long and help control gene expression after transcription by binding to target messenger RNAs (mRNAs).

MIR548V is produced in a two-step process: first, Drosha trims the primary transcript to a ~70-nucleotide precursor; then Dicer processes it to create the mature miRNA. The mature MIR548V is loaded into the RNA-induced silencing complex (RISC), which uses it to recognize target mRNAs. This usually reduces the production of the corresponding protein by blocking translation or destabilizing the mRNA.

MIR548V has related equivalents in other species (there are mouse orthologs). It is expressed in multiple human tissues, including parts of the brain and nervous system (such as the corpus callosum and nerves), as well as liver, blood, placenta, and other tissues.

In short: MIR548V is a human microRNA that helps regulate genes by guiding RISC to target mRNAs to lower their expression, and it comes from a gene on chromosome 8.