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5.3.1.5. Small nuclear RNA

Small nuclear RNA

The small nuclear RNA (ARNpn), named for its small size by being in the nucleus of eukaryotic cells. It is also called U-RNA, due to its high uracil content. Like other RNAs, pRNA is single-stranded.

The pRNA binds to certain proteins of the nucleus forming the nuclear ribonucleoproteins, to carry out the process of intron removal (mRNA maturation).


         

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Biology and Geology teaching materials for Compulsory Secondary Education (ESO) and Baccalaureate students.