miRabel logo

A simple and efficient miRNA target prediction tool

New web interface: Data and predictions remain the same
The previous version is still available here

User Guide

Introduction roll

miRabel is a webtool dedicated to the efficient prediction of miRNA targets. miRabel can predict mRNAs that are targeted by several miRNAs given as input. As an option, the experimental expression level of each miRNAs is taken in account to evaluate their potential cumulative effect on the mRNA targets. In addition, results are linked to metabolic and cellular pathways retrieved from KEGG which allows a more comprehensive analysis of the miRNAs.

Start a prediction roll

menu bar

There are two ways of getting to the predictions pages. First of all, you can use one of the 3 links included in the submenu of the "get started" menu bar. Otherwise, you can click on any of the 3 links available on the home page. They correspond to 3 different search types:

  • The "by miRNA" search
  • The "by gene" search
  • The "by pathway" search

For information on each search type, see their respective section.

By miRNA search roll

by mir search

The "by miRNA" search requires one or more miRNA(s) as entry (and optionally their associated expression factor) and returns a list of potentially targeted genes with their associated scores. MiRs can be directly typed in the text field or uploaded (TSV format, composed of one column with miRNA names and optionally a column with expression factors). It is also possible to restrict predictions to a specific pathway of interest. Click "Predict !" or "Compute !" to launch the search.

  • IMPORTANT: If you use both the text fields and the file input field at the same time, only the file data will be treated. Information in text field will be lost. Moreover, providing expression factor for some but not all micro-RNAs may result in wrong or unexpected results.

By gene search roll

menu bar
The "by gene" search requires one or several gene(s) in entry. Genes can be directly typed in the text field or uploaded (TSV format, composed of one column with gene names). You then need to choose whether you want to get the potentially targeted miRNAs or the list of pathways the genes you entered are involved with. Hit "Predict !" to launch the search.

  • IMPORTANT: If you use both the text fields and the file input field at the same time, only the file data will be treated. Information in text field will be lost.

By pathway search roll

menu bar The "by pathway" search requires one or more pathway(s) (with a maximum of 10) to get the list of genes that they contain. Pathways can be directly typed in the text field or uploaded (TSV format, composed of one column with pathway names).

  • IMPORTANT: If you use both the text fields and the file input field at the same time, only the file data will be treated. Information in text field will be lost. Moreover, if using the file input field, make sure that the pathway names you entered match exactly those included in KEGG database!

Results display roll

menu bar By default results display is set to 10. You can increase this number to your convenience with the "Show ... entries" scrolling options (top left of the results table).
The search input field (top right of the results table) enables to search for specific data across the entire table (even not displayed parts) of the table.
You can sort your results by clicking on the table headers
menu bar You can export your data (top) in 5 different formats:

  • copy to clipboard and paste it in the document of your choice
  • .xls
  • .csv (very convenient for post analysis with excel for instance)
  • .pdf
  • Print (using the print function of your internet browser).

Converter tool roll

The converter is accessible from the "Tools" menu bar item. Type in your miRNA name(s) of interest and hit "Convert !". You will get the most recent nomenclature for the given miRNAs as well as their associated miRbase version.

Troubleshooting roll

The search formulars are not extending and / or data is not / badly display.

This application uses javascript. Please verify that you have enabled java in your browser. Often, you can find this option in "Edit" or "Preferences" on your browser.


When exporting result, only displayed data is saved.

If you wish to export the entire dataset, choose to display all rows in the "display length selector" before exporting.


When doing a search, no results are found.

Please check the spelling of your entries.
It is also possible that no prediction exist in the database for your entry.