Transcription of spacer sequences in genes coding for ribosomal RNA in Xenopus cells.

@article{Rungger1979TranscriptionOS,
  title={Transcription of spacer sequences in genes coding for ribosomal RNA in Xenopus cells.},
  author={Duri Rungger and H Achermann and Marco Crippa},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1979},
  volume={76 8},
  pages={3957-61}
}
Untreated Xenopus cells synthesize RNA is increased and some sequences complementary to those of the nontranscribed spacer are found in the heavy shoulder of the 40S precursor rRNA peak. In such events transcription initiation seems to take place within the spacer because its middle and right BamHI endonuclease fragments are preferentially transcribed, whereas only few RNA sequences complementary to the left spacer fragment are found. It is concluded that at least some spacer regions contain… CONTINUE READING