Fassetti, F; Giallombardo, C; Leone, O; Palopoli, L; Rombo, SE; Saiardi, A; (2019) FEDRO: a software tool for the automatic discovery of candidate ORFs in plants with c →u RNA editing. BMC Bioinformatics , 20 (4) , Article 124. 10.1186/s12859-019-2696-6.

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Text Saiardi_FEDRO. A software tool for the automatic discovery of candidate ORFs in plants with RNA_VoR.pdf - Published Version Download (1MB) | Preview

Abstract

BACKGROUND: RNA editing is an important mechanism for gene expression in plants organelles. It alters the direct transfer of genetic information from DNA to proteins, due to the introduction of differences between RNAs and the corresponding coding DNA sequences. Software tools successful for the search of genes in other organisms not always are able to correctly perform this task in plants organellar genomes. Moreover, the available software tools predicting RNA editing events utilise algorithms that do not account for events which may generate a novel start codon. RESULTS: We present Fedro, a Java software tool implementing a novel strategy to generate candidate Open Reading Frames (ORFs) resulting from Cytidine to Uridine (c→u) editing substitutions which occur in the mitochondrial genome (mtDNA) of a given input plant. The goal is to predict putative proteins of plants mitochondria that have not been yet annotated. In order to validate the generated ORFs, a screening is performed by checking for sequence similarity or presence in active transcripts of the same or similar organisms. We illustrate the functionalities of our framework on a model organism. CONCLUSIONS: The proposed tool may be used also on other organisms and genomes. Fedro is publicly available at http://math.unipa.it/rombo/FEDRO.

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