External transcribed spacer

External transcribed spacer (ETS) refers to a piece of non-functional RNA, closely related to the internal transcribed spacer, which is situated outside structural ribosomal RNAs (rRNA) on a common precursor transcript.[1]

References

  1. ↑ Schibler, U.; Wyler, T.; Hagenbuchle, O. (1975). "Changes in size and secondary structure of the ribosomal transcription unit during vertebrate evolution". Journal of Molecular Biology 94 (3): 503–17. doi:10.1016/0022-2836(75)90217-X. PMID 809590.