Nature Communications (Apr 2022)

TGS1 mediates 2,2,7-trimethyl guanosine capping of the human telomerase RNA to direct telomerase dependent telomere maintenance

  • Valentina Buemi,
  • Odessa Schillaci,
  • Mariangela Santorsola,
  • Deborah Bonazza,
  • Pamela Veneziano Broccia,
  • Annie Zappone,
  • Cristina Bottin,
  • Giulia Dell’Omo,
  • Sylvie Kengne,
  • Stefano Cacchione,
  • Grazia Daniela Raffa,
  • Silvano Piazza,
  • Fabrizio d’Adda di Fagagna,
  • Roberta Benetti,
  • Maurizio Cortale,
  • Fabrizio Zanconati,
  • Giannino Del Sal,
  • Stefan Schoeftner

DOI
https://doi.org/10.1038/s41467-022-29907-z
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 15

Abstract

Read online

Telomerase protects chromosome ends in stem cells and cancer cells. Here the authors show that Trimethylguaonsine Synthase 1 (TGS-1) – dependent trimethylguanosine capping of the RNA component of the human telomerase complex has an important role in directing telomere dependent telomere maintenance and suppressing the ALT pathway in cancer cells.