<html><head><title>Protein Charge Calculator</title></head>
<body><h2>
Protein Charge Calculator</h2> <form action='protcharge.cgi' method='post'>
Enter the amino-acid sequence:
<textarea name="seq" rows="5" cols="40"></textarea><p>
Do you want to see the proportion of charged amino-acid?
<p><input type="radio" name="prop" value="y">Yes<br>
<input type="radio" name="prop" value="n"> No<br><p>
Job title (optional):
<input type="text" size="30" name="title" value=""><br><p>
<input type='submit' value='Send'></form></body></html>