complex enhances degradation by the exosome by trimming down these structures.
The expansion of a GCN repeat at the  ve prime end of a protein that binds this structure leads to oculoÂ·pharyngeal muscular dystrophy. The rotavirus protein NÂ·SÂ·PÂ·3 serves as an analogue of this structure's namesake "binding protein" to inhibit association of this structure with eÂ·IÂ·FÂ·4. The TRAMP ("tramp") complex enhances degradation by the exosome by trimming down these structures. Molecules containing these structures can be isolated with an oligo-dÂ·T column. The addition of this structure  rst requires a cleavage catalyzed by CÂ·PÂ·SÂ·F at an AÂ·AÂ·UÂ·AÂ·AÂ·A sequence. Alternative splicing and di ferential addition of these structures can allow an mRNA molecule to encode di ferent forms of a protein. The  ve prime end of a mature RNA molecule is attached to a GTP cap while the three prime end is attached to this structure. For 10 points, name this extended sequence of adenosine nucleotides added to the three prime end of newly-translated mRNA.
The expansion of a GCN repeat at the  ve prime end of a protein that binds this structure leads to oculoÂ·pharyngeal muscular dystrophy.
poly-A tail [accept poly-adenylation]