Create RNA secondary structure diagrams fast and easy. XRNA is a Java based suite of tools for the creation, annotation and display of RNA secondary structure diagrams.

XRNA provides editing tools for easy modification of publication quality secondary diagrams that can be either drawn manually, or through automatic generation. Other features include grouping, numbering and structure annotation. XRNA secondary structures may be saved in a native format, or exported as postscript for printing and further manipulation in programs such as Adobe Illustrator.

For testing purposes go to the XRNA Gallery on the CMB-RNA web site and download a file to use as input for XRNA (currently only e.coli 5S is available and is called e.coli_5s.xrna).
Start up XRNA and read in the XRNA input file. This should display a secondary structure graph.

With the XRNA "Choose File" button located in the "Import/Export" tab, browse to the xrna file and click on it, or type the xrna file name into the text field and click on "Open". All XRNA input/output file names end with the extension ".xrna" .

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this calculator software.