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Native mass spectrometry reveals the initial binding events of HIV-1 rev to RRE stem II RNA

Author

Listed:
  • Eva-Maria Schneeberger

    (University of Innsbruck
    Harvard Medical School)

  • Matthias Halper

    (University of Innsbruck)

  • Michael Palasser

    (University of Innsbruck)

  • Sarah Viola Heel

    (University of Innsbruck)

  • Jovana Vušurović

    (University of Innsbruck)

  • Raphael Plangger

    (University of Innsbruck)

  • Michael Juen

    (University of Innsbruck
    Roche Diagnostics GmbH)

  • Christoph Kreutz

    (University of Innsbruck)

  • Kathrin Breuker

    (University of Innsbruck)

Abstract

Nuclear export complexes composed of rev response element (RRE) ribonucleic acid (RNA) and multiple molecules of rev protein are promising targets for the development of therapeutic strategies against human immunodeficiency virus type 1 (HIV-1), but their assembly remains poorly understood. Using native mass spectrometry, we show here that rev initially binds to the upper stem of RRE IIB, from where it is relayed to binding sites that allow for rev dimerization. The newly discovered binding region implies initial rev recognition by nucleotides that are not part of the internal loop of RRE stem IIB RNA, which was previously identified as the preferred binding region. Our study highlights the unique capability of native mass spectrometry to separately study the binding interfaces of RNA/protein complexes of different stoichiometry, and provides a detailed understanding of the mechanism of RRE/rev association with implications for the rational design of potential drugs against HIV-1 infection.

Suggested Citation

  • Eva-Maria Schneeberger & Matthias Halper & Michael Palasser & Sarah Viola Heel & Jovana Vušurović & Raphael Plangger & Michael Juen & Christoph Kreutz & Kathrin Breuker, 2020. "Native mass spectrometry reveals the initial binding events of HIV-1 rev to RRE stem II RNA," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19144-7
    DOI: 10.1038/s41467-020-19144-7
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    Cited by:

    1. Jerricho Tipo & Keerthi Gottipati & Michael Slaton & Giovanni Gonzalez-Gutierrez & Kyung H. Choi, 2024. "Structure of HIV-1 RRE stem-loop II identifies two conformational states of the high-affinity Rev binding site," Nature Communications, Nature, vol. 15(1), pages 1-13, December.

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