<p>Hello, I have a text file likes this:</p>

<pre><code>GTCAAAGATCAGATGGTTGTAGATGTGTGGTGTTATTTCTGAAGCCTCTGTTCAAGGAAGGCAGTTTCTTATGAA
</code></pre>

<p>I want to convert it to a fasta file. Can we just manually add a ">" in the fist line?</p>

<p>Thanks </p>

<p>A good explaination of the FASTA format is here: </p>

<p><a href='http://en.wikipedia.org/wiki/FASTA_format'>http://en.wikipedia.org/wiki/FASTA_format</a></p>

<p>Some applications will use the word immediately after the ">" symbols as an "ID" so make sure it means something to you. You that you can put multiple sequences in the one file, just start each new one with a ">" line, and use a unique ID for each one.</p>
