Does splicing occur in the cytoplasm?
Posted August 18, 2022
Answer
Splicing occurs in the cytoplasm only in prokaryotes, as they do not have a nucleus. Because mRNA splicing is a mechanism unique to eukaryotes, it rarely occurs in prokaryotes. If prokaryotic splicing does occur, it is usually found in non-coding RNA types such as tRNAs.
Additional resources
Cytoplasmic intron retention, function, splicing, and the sentinel RNA hypothesis