Alpha-actinin-4 mRNA 3' untranslated region (ACTN4 mRNA 3' UTR)

The Alpha-actinin-4 (ACTN4) mRNA 3' untranslated region (3' UTR) is a critical regulatory segment of the ACTN4 transcript that governs the stability and translation efficiency of the encoded protein (NCBI Gene ID: 81). ACTN4 is a non-muscle actin-binding protein involved in cell motility, cytoskeleton organization, and nuclear signaling (UniProt KB: O43707). The 3' UTR contains multiple binding sites for microRNAs, such as miR-124, miR-16, and miR-27a, which typically bind to suppress translation or induce mRNA degradation (PubMed: 23536449, 25670303). In many human cancers, ACTN4 is overexpressed due to the loss of these regulatory microRNAs, promoting tumor progression, metastasis, and epithelial-mesenchymal transition. Consequently, the ACTN4 mRNA 3' UTR is an emerging therapeutic target for RNA-based interventions, including antisense oligonucleotides and microRNA mimics, aimed at reducing ACTN4 levels in oncogenic contexts. Beyond oncology, ACTN4 is essential for the structural integrity of kidney podocytes, and its dysregulation is associated with focal segmental glomerulosclerosis (PubMed: 15504155). Therapeutic development focusing on this region must balance the inhibition of cancer spread with the maintenance of essential physiological functions in the kidney.

Other names

ACTN4 3'-UTRAlpha-actinin-4 3'-UTRACTN4 3' untranslated regionACTN4 mRNA 3' regulatory region

RNA interference or antisense-mediated degradation of ACTN4 mRNA to reduce protein expression levels by targeting specific sequences within the 3' untranslated region.