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Brown, Joshua D.; Kharytonchyk, Siarhei; Chaudry, Issac; Iyer, Aishwarya S.; Carter, Hannah; Becker, Ghazal; Desai, Yash; Glang, Lindsay; Choi, Seung H.; Singh, Karndeep; Lopresti, Michael W.; Orellana, Matthew; Rodriguez, Tatiana; Oboh, Ubiomo; Hijji, Jana; Ghinger, Frances Grace; Stewart, Kailan; Francis, Dillion; Edwards, Bryce; Chen, Patrick; Case, David A.; Telesnitsky, Alice; Summers, Michael F.

Structural basis for transcriptional start site control of HIV-1 RNA fate

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  • Medientyp: E-Artikel
  • Titel: Structural basis for transcriptional start site control of HIV-1 RNA fate
  • Beteiligte: Brown, Joshua D.; Kharytonchyk, Siarhei; Chaudry, Issac; Iyer, Aishwarya S.; Carter, Hannah; Becker, Ghazal; Desai, Yash; Glang, Lindsay; Choi, Seung H.; Singh, Karndeep; Lopresti, Michael W.; Orellana, Matthew; Rodriguez, Tatiana; Oboh, Ubiomo; Hijji, Jana; Ghinger, Frances Grace; Stewart, Kailan; Francis, Dillion; Edwards, Bryce; Chen, Patrick; Case, David A.; Telesnitsky, Alice; Summers, Michael F.
  • Erschienen: American Association for the Advancement of Science (AAAS), 2020
  • Erschienen in: Science, 368 (2020) 6489, Seite 413-417
  • Sprache: Englisch
  • DOI: 10.1126/science.aaz7959
  • ISSN: 0036-8075; 1095-9203
  • Entstehung:
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  • Beschreibung: One guanosine determines transcript fate Transcripts of the HIV-1 RNA genome can be either spliced and translated into viral proteins or packaged into new virions as a progeny genome. The path taken depends on whether the transcript contains one guanosine at the 5′ terminus (1G) rather than two or three (2G or 3G). Brown et al. used nuclear magnetic resonance spectroscopy to show that 1G transcripts adopt a dimeric structure that sequesters a terminal cap required for translation and splicing but exposes sites that bind to the HIV-1 Gag protein, which recruits the genome during viral assembly. Conversely, 2G or 3G transcripts have the cap accessible, but Gag-binding sites are sequestered. Therefore, a single guanosine acts as a conformational switch to determine the fate of HIV-1 transcripts. Science , this issue p. 413