Figure 8.26. Processing of pre-rRNA.

Figure 8.26Processing of pre-rRNA

The 45S pre-rRNA transcript contains external transcribed spacers (ETS) at both ends and internal transcribed spacers (ITS) between the sequences of 18S, 5.8S, and 28S rRNAs. The pre-rRNA is processed via a series of cleavages (illustrated for human pre-rRNA) to yield the mature rRNA species.

From: The Nucleolus

Cover of The Cell
The Cell: A Molecular Approach. 2nd edition.
Cooper GM.
Sunderland (MA): Sinauer Associates; 2000.
Copyright © 2000, Geoffrey M Cooper.

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