MicroRNA 3909 (miR-3909)

MicroRNA 3909 (miR-3909) is a short, non-coding RNA molecule (approximately 20-24 nucleotides) in humans that acts as a post-transcriptional regulator of gene expression[1]. As with other microRNAs, miR-3909 is transcribed as part of a longer primary transcript and processed by Drosha and Dicer nucleases into its mature form, which is incorporated into the RNA-induced silencing complex (RISC)[1][3][4]. Within the RISC, miR-3909 recognizes partially complementary sequences, primarily in the 3' untranslated regions (3' UTRs) of target mRNAs, resulting in mRNA degradation or translational repression[1][4]. Recent evidence implicates miR-3909 in modulation of DNA damage response via targeting genes such as RING1, thereby potentially affecting homologous recombination repair and genomic stability[2]. Computational analyses have predicted miR-3909 to regulate inflammatory genes, such as interleukin 1 receptor 1 (IL1R1)[6]. Like other microRNAs, miR-3909 is not a receptor, enzyme, or classic drug target but rather a gene expression regulator influencing diverse cellular processes, disease mechanisms, and possibly serving as a disease biomarker[1][2][6].

Other names

hsa-miR-3909MIR3909mir-3909hsa-mir-3909