As a database, miRTarBase has accumulated more than fifty thousand miRNA-target interactions (MTIs), which are collected by manually surveying pertinent literature after data mining of the text systematically to filter research articles related to functional studies of miRNAs. Generally, the collected MTIs are validated experimentally by reporter assay, western blot, microarray and next-generation sequencing experiments. While containing the largest amount of validated MTIs, the miRTarBase provides the most updated collection by comparing with other similar, previously developed databases.
CG-seq is a software pipeline to identify noncoding RNAs in a genomic sequence by comparative analysis and multispecies comparison. It takes as input a genomic sequence (called the target sequence) and a set of other sequences coming from a variety of species to be compared against the target sequences.
RNAfamily is a simple software tools that enables to display all secondary structures of a family of RNA molecules. It uses the linear backbone representation. RNAfamily provides usual graphical features: zooming, scrolling, etc. Colors of the stems correspond to matching stems. It is also possible to display the nucleotides composing a stem or the whole sequence.
Carnac is a software tool for analysing the hypothetical secondary structure of a family of homologous RNA. It aims at predicting if the sequences actually share a common secondary structure. When this structure exists, Carnac is then able to correctly recover a large amount of the folded stems. The input is a set of single-stranded RNA sequences that need not to be aligned. The folding strategy relies on a thermodynamic model with energy minimization. It combines information coming from locally conserved elements of the primary structure and mutual information between sequences with covariations too.