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Special Issue "Regulation by Non-coding RNAs 2022"

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Genetics and Genomics".

Deadline for manuscript submissions: 31 March 2022.

Special Issue Editor

Prof. Dr. Constantinos Stathopoulos
E-Mail Website
Guest Editor
Department of Biochemistry, School of Medicine, University of Patras, 26504 Patras, Greece
Interests: protein synthesis inhibitors; antibiotic resistance; novel antibiotics; riboswitch inhibitors; RNA inhibitors
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

During recent years, a remarkable expansion of the “RNA world” members has been observed with the discovery and characterization of many as-yet elusive  RNA molecules of various sizes and regulatory roles, in both eukaryotes and bacteria. In the dawn of this new RNA era, the term “non-coding RNAs” represents not only molecules such as tRNAs, rRNAs and snoRNAs, which cannot be translated into proteins, but also includes a variety of prominent RNA molecules that play distinct and critical roles within the cell. In eukaryotes, these novel members are represented by numerous microRNAs, siRNAs, piRNAs and long non-coding RNAs that exhibit trans-acting antisense modulating properties. Today, we know that they modulate gene expression by interfering in post-transcriptional level. Moreover, RNA interference-based methodologies have provided the means of studying gene expression at a glance, both in vitro and in vivo, and they have emerged as very delicate and promising therapeutic strategies. In bacteria, the new members are represented by many regulatory RNAs of various sizes, which are also responsible for essential cellular responses. These key elements can either be embedded in the 5’ end of mRNAs (i.e., riboswitches), they can be small RNAs that act in trans by targeting proteins or RNAs, they can be long antisense RNA modulators (CRISPR RNAs) or they may even have intrinsic activity (such as the RNase P ribozyme). Whatever their origin, size, structure or specific role, it is more than evident that non-coding RNAs represent a dynamic and expanding family of essential molecules, some of them with deep evolutionary history. Moreover, they are established as valuable novel tools with biotechnological applications or/and targets for combating disease or pathogens. Their discovery and study have great impact not only in the way we approach specific cellular processes today, but also in the way we understand the evolution of life itself.

Prof. Dr. Constantinos Stathopoulos
Guest Editor

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 papers will be 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 100 words) can be sent to the Editorial Office for announcement on this website.

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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • regulatory RNA
  • sRNA
  • ncRNA
  • lncRNA
  • miRNA
  • siRNA
  • piRNA
  • CRISPR RNA
  • regulatory small RNA fragments

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Published Papers (1 paper)

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Review

Review
The Dynamic Network of RNP RNase P Subunits
Int. J. Mol. Sci. 2021, 22(19), 10307; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms221910307 - 24 Sep 2021
Viewed by 301
Abstract
Ribonuclease P (RNase P) is an important ribonucleoprotein (RNP), responsible for the maturation of the 5′ end of precursor tRNAs (pre-tRNAs). In all organisms, the cleavage activity of a single phosphodiester bond adjacent to the first nucleotide of the acceptor stem is indispensable [...] Read more.
Ribonuclease P (RNase P) is an important ribonucleoprotein (RNP), responsible for the maturation of the 5′ end of precursor tRNAs (pre-tRNAs). In all organisms, the cleavage activity of a single phosphodiester bond adjacent to the first nucleotide of the acceptor stem is indispensable for cell viability and lies within an essential catalytic RNA subunit. Although RNase P is a ribozyme, its kinetic efficiency in vivo, as well as its structural variability and complexity throughout evolution, requires the presence of one protein subunit in bacteria to several protein partners in archaea and eukaryotes. Moreover, the existence of protein-only RNase P (PRORP) enzymes in several organisms and organelles suggests a more complex evolutionary timeline than previously thought. Recent detailed structures of bacterial, archaeal, human and mitochondrial RNase P complexes suggest that, although apparently dissimilar enzymes, they all recognize pre-tRNAs through conserved interactions. Interestingly, individual protein subunits of the human nuclear and mitochondrial holoenzymes have additional functions and contribute to a dynamic network of elaborate interactions and cellular processes. Herein, we summarize the role of each RNase P subunit with a focus on the human nuclear RNP and its putative role in flawless gene expression in light of recent structural studies. Full article
(This article belongs to the Special Issue Regulation by Non-coding RNAs 2022)
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