Encodes a microRNA that targets several genes containing AP2 domains including AP2. MicroRNAs are regulatory RNAs with a mature length of ~21-nucleotides that are processed from hairpin precursors by Dicer-like enzymes. MicroRNAs can negatively regulate gene expression by attenuating translation or by directing mRNA cleavage. Mature sequence: AGAAUCUUGAUGAUGCUGCAU. Pri-mRNA coordinates for MIR172a (converted to TAIR10 based on PMID19304749): Chr2: 11943611-11941515 (reverse), length: 2097 bp; exon coordinates: exon 1: 11943611 to 11942837, exon 2: 11942688 to 11942600, exon 3: 11941905 to 11941515; mature miRNA and miRNA* are located on exon 1.
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