Terminal uridylyltransferase 7 (TUT7)

Uridylyltransferase that mediates the terminal uridylation of mRNAs with short (less than 25 nucleotides) poly(A) tails, hence facilitating international mRNA decay (PubMed:19703396, PubMed:25480299). Essential for both oocyte maturation and fertility.

During 3' terminal uridylation of mRNA, sculpts, with TUT7, the maternal transcriptome by removing transcripts during oocyte growth (By similarity). Involved in microRNA (miRNA)- triggered gene silencing through uridylation of deadenylated miRNA targets (PubMed:25480299).