--- /dev/null
+<html>
+<!--
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.5)
+ * Copyright (C) 2010 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+-->
+<head>
+<title>Nucleic Acid Support</title>
+<style type="text/css">
+<!--
+td {
+ font-family: "Courier New", Courier, mono;
+ font-style: normal;
+ font-size: medium;
+}
+-->
+</style>
+</head>
+<body>
+<p><strong>Nucleic Acid Support</strong></p>
+<p><em>Colour Schemes</em></p>
+<p>Jalview has color schemes for nucleic acid based sequences, ability to
+fetch sequences from RFAM and RNA secondary structure coloring</p>
+<p>Information on the <a href="../colourSchemes/nucleotide.html">Nucleotide
+colour scheme</a> and <a href="../colourSchemes/purinepyrimidine.html">
+Purine/Pyrimidine colour scheme</a> are available
+under the Colour Menu. See <a href="../colourSchemes/index.html">Colour
+Schemes</a>.</p>
+<p><em>RNA Support</em></p>
+<p>Sequences can be <a href="../features/seqfetch.html">fetched</a> from the
+RFAM database by accession number or ID.</p>
+<p>If an RNA alignment is loaded from a Stockholm file with secondary
+structure information in WUSS notation, the alignment can be coloured by
+the helices in the secondary structure. Helices are determined by the base-pairing
+in the secondary structure line. See <a href="../colourSchemes/rnahelicesColouring.html">
+RNA Helices Colouring</a>. Below is an example of this type of coloring</p>
+<p>Annotation panel shows the presence of RNA helices and WUSS notation from
+input file specifying secondary structure.<p>
+<div align="center">
+ <img src="../colourschemes/rnahelicescoloring.png" width="600" height="140"> </div>
+
+
+</div>
+<p align="center"> </p>
+</body>
+</html>