Uncovering the effect of RNA polymerase steric interactions on gene expression noise: analytical distributions of nascent and mature RNA numbers [PDF]
The telegraph model is the standard model of stochastic gene expression, which can be solved exactly to obtain the distribution of mature RNA numbers per cell. A modification of this model also leads to an analytical distribution of the nascent RNA numbers. These solutions are routinely used for the analysis of single-cell data, including the inference
arxiv
After transcription, a messenger RNA (mRNA) is further post‐transcriptionally regulated by several features including RNA secondary structure and covalent RNA modifications (specifically N6‐methyladenosine, m6A). Both RNA secondary structure and m6A have
Marianne C. Kramer+8 more
doaj +1 more source
Dicer expression exhibits a tissue-specific diurnal pattern that is lost during aging and in diabetes. [PDF]
Dysregulation of circadian rhythmicity is identified as a key factor in disease pathogenesis. Circadian rhythmicity is controlled at both a transcriptional and post-transcriptional level suggesting the role of microRNA (miRNA) and double-stranded RNA ...
Yuanqing Yan+9 more
doaj +1 more source
Physics-aware Graph Neural Network for Accurate RNA 3D Structure Prediction [PDF]
Biological functions of RNAs are determined by their three-dimensional (3D) structures. Thus, given the limited number of experimentally determined RNA structures, the prediction of RNA structures will facilitate elucidating RNA functions and RNA-targeted drug discovery, but remains a challenging task.
arxiv
tRNA Processing and Subcellular Trafficking Proteins Multitask in Pathways for Other RNAs
This article focuses upon gene products that are involved in tRNA biology, with particular emphasis upon post-transcriptional RNA processing and nuclear-cytoplasmic subcellular trafficking.
Anita K. Hopper, Regina T. Nostramo
doaj +1 more source
Recent Advances on the Structure and Function of RNA Acetyltransferase Kre33/NAT10
Ribosome biogenesis is one of the most energy demanding processes in the cell. In eukaryotes, the main steps of this process occur in the nucleolus and include pre-ribosomal RNA (pre-rRNA) processing, post-transcriptional modifications, and assembly of ...
Sophie Sleiman, Francois Dragon
doaj +1 more source
CoFold: thermodynamic RNA structure prediction with a kinetic twist [PDF]
Existing state-of-the-art methods that take a single RNA sequence and predict the corresponding RNA secondary-structure are thermodynamic methods. These predict the most stable RNA structure, but do not consider the process of structure formation. We have by now ample experimental and theoretical evidence, however, that sequences in vivo fold while ...
arxiv
A complex adaptive systems approach to the kinetic folding of RNA [PDF]
The kinetic folding of RNA sequences into secondary structures is modeled as a complex adaptive system, the components of which are possible RNA structural rearrangements (SRs) and their associated bases and base pairs. RNA bases and base pairs engage in local stacking interactions that determine the probabilities (or fitnesses) of possible SRs ...
arxiv +1 more source
PIWI Slicing and RNA Elements in Precursors Instruct Directional Primary piRNA Biogenesis
PIWI proteins and PIWI-interacting RNAs (piRNAs) mediate repression of transposons in the animal gonads. Primary processing converts long single-stranded RNAs into ∼30-nt piRNAs, but their entry into the biogenesis pathway is unknown.
David Homolka+7 more
doaj +1 more source
RNA as a Nanoscale Data Transmission Medium: Error Analysis [PDF]
RNA can be used as a high-density medium for data storage and transmission; however, an important RNA process -- replication -- is noisy. This paper presents an error analysis for RNA as a data transmission medium, analyzing how deletion errors increase in a collection of replicated DNA strands over time.
arxiv