Functional Structures in RNA Viruses

A special issue of Viruses (ISSN 1999-4915). This special issue belongs to the section "General Virology".

Deadline for manuscript submissions: 15 June 2026 | Viewed by 1237

Special Issue Editors


E-Mail Website
Guest Editor
Istituto Italiano di Tecnologia, Genova, Italy
Interests: RNA secondary structure; machine-learning and AI; RNA viruses; lncRNAs; protein-RNA interactions
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Istituto Italiano di Tecnologia, Genova, Italy
Interests: computational modelling; phase-separation; solubility; ribonucleoprotein networks
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Istituto Italiano di Tecnologia, Genova, Italy
Interests: RNA viruses; phase-separation; RNA structure; protein-RNA interactions; RNA modifications
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Istituto Italiano di Tecnologia, Genova, Italy
Interests: protein-RNA interactions; post-transcriptional regulation; untranslated regions; circular RNAs; RNA processing and RNA modifications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

RNA viruses rely heavily on intricate RNA structures to regulate key steps of their life cycles, including replication, translation, packaging, interaction with proteins, and host defense evasion. These functional RNA structures are often more conserved than the viral sequences themselves, underscoring their essential role in viral fitness despite high mutation rates. Well-characterized examples include internal ribosome entry sites (IRESs) in picornaviruses, pseudoknots that mediate ribosomal frameshifting in coronaviruses, and XRN1-resistant RNA structures that promote immune evasion in the 3’ UTR of flaviviruses.

Advances in chemical probing techniques, particularly SHAPE, have significantly deepened our understanding of these elements and their dynamic roles. SHAPE was first used to understand the structural architecture of HIV-1 and has since been applied to numerous other viruses, including hepatitis C and dengue. In parallel, computational tools, especially machine learning-based predictors, are enabling de novo identification and large-scale analysis of conserved structural motifs, such as potential IRES elements across viral genomes. This growing understanding of viral RNA structures will enable novel therapeutic strategies and is likely to inform the rational design of next-generation RNA-based vaccines.

This Special Issue aims to highlight recent progress in identifying and characterizing functional RNA structures in RNA viruses, including their interactions with host proteins, with a focus on both experimental and computational approaches. We welcome original research, reviews, methods, databases, and perspectives, and encourage interdisciplinary contributions bridging virology, structural biology, and bioinformatics.

You may choose our Joint Special Issue in Biomolecules.

Dr. Riccardo Delli Ponti
Dr. Gian Gaetano Tartaglia
Dr. Andrea Vandelli
Dr. Laura Broglia
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Viruses is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • RNA secondary structure
  • RNA viruses
  • machine learning
  • SHAPE
  • protein–RNA interactions

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Review

36 pages, 3122 KB  
Review
Decoding the Structural Complexity of Viral RNAs with SHAPE to Guide Antiviral Therapeutics
by Laura Broglia, Camilla Canale, Andrea Vandelli, Gian Gaetano Tartaglia and Riccardo Delli Ponti
Viruses 2026, 18(5), 543; https://doi.org/10.3390/v18050543 - 8 May 2026
Viewed by 833
Abstract
RNA viruses encode multiple layers of regulatory information within their genomes, extending beyond their protein-coding sequences. Through local secondary structures and long-range RNA–RNA interactions, viral RNAs control essential steps of the viral life cycle, including translation, replication, genome cyclization, packaging, and evasion of [...] Read more.
RNA viruses encode multiple layers of regulatory information within their genomes, extending beyond their protein-coding sequences. Through local secondary structures and long-range RNA–RNA interactions, viral RNAs control essential steps of the viral life cycle, including translation, replication, genome cyclization, packaging, and evasion of host defenses. Over the last two decades, chemical probing approaches—particularly Selective 2′-Hydroxyl Acylation analyzed by a primer extension (SHAPE) and its high-throughput derivatives—have transformed our ability to investigate these structures at a single nucleotide resolution and on a genome-wide scale. These technologies have revealed that viral genomes are highly structured and contain numerous functional RNA elements within untranslated regions as well as coding sequences. In this review, we summarize the main experimental strategies used to profile viral RNA architecture, with a focus on SHAPE-based methodologies and complementary approaches. We then discuss the major classes of functional RNA structures identified across diverse viral families, focusing on elements involved in translation and replication, such as internal ribosome entry sites (IRES) and cyclization elements, as well as other functional structures, including XRN1-resistant and frameshifting elements. Finally, we examine how structure-guided analyses are opening new avenues for antiviral intervention, including antisense oligonucleotides, small molecules, and RNA-degrading chimeras. Together, these advances highlight the viral RNA structure as both a key determinant of virus biology and a promising target for therapeutic innovation. Full article
(This article belongs to the Special Issue Functional Structures in RNA Viruses)
Show Figures

Figure 1

Back to TopTop