Different forms of U15 snoRNA are encoded in the introns of the ribosomal protein S1 gene of Xenopus laevis.

@article{Pellizzoni1994DifferentFO,
  title={Different forms of U15 snoRNA are encoded in the introns of the ribosomal protein S1 gene of Xenopus laevis.},
  author={Livio Pellizzoni and Claudia Crosio and Nadia Campioni and Fabrizio Loreni and Paola Pierandrei-Amaldi},
  journal={Nucleic acids research},
  year={1994},
  volume={22 22},
  pages={4607-13}
}
Recent cloning and sequencing of one of the two Xenopus gene copies (S1b) coding for the ribosomal protein S1 has revealed that its introns III, V and VI carry a region of about 150 nt that shares an identity of 60%. We show here the presence in Xenopus oocytes and cultured cells of a 143-147 nt long RNA species encoded by these three repeated sequences on the same strand as the S1 mRNA and by at least one repeat present in the S1 a copy of the r-protein gene. We identify these RNAs as forms of… CONTINUE READING