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. 1989 Jul 11;17(13):5349–5359. doi: 10.1093/nar/17.13.5349

A self-splicing intron in the small subunit rRNA gene of Pneumocystis carinii.

M L Sogin 1, J C Edman 1
PMCID: PMC318115  PMID: 2788266

Abstract

The coding region for the Pneumocystis carinii small subunit rRNA (16S-like rRNA) contains 390 extra base pairs in a region that is highly conserved in other eukaryotic rRNA genes. The sequence has all the elements characteristic of group I self-splicing introns and interrupts the phylogenetically conserved helix proximal to the 3' terminus of the 16S-like rRNA. In vitro transcripts containing the putative group I intron were capable of undergoing a "self-splicing" reaction which required the presence of guanine nucleotide.

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Selected References

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