Polyadenylation is the process of adding a series of adenine nucleotides, known as a poly(A) tail, to the 3' end of a newly synthesized mRNA molecule. This modification plays a crucial role in stabilizing the mRNA, facilitating its export from the nucleus to the cytoplasm, and enhancing translation efficiency. The length and integrity of the poly(A) tail can also influence mRNA degradation and overall gene expression.
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