/**
* Convert a amino acid sequence in one-letter-notation to three-letter-notation
*
* @param one -letter-notation
* @return three-letter-notation
*/
public static String convAaSequence(String seq) {
StringBuffer buf = new StringBuffer();
for (char aminoAcid : seq.toCharArray())
buf.append(SequenceUtils.toAminoAcid3(new Character(aminoAcid).toString()));
return buf.toString();
}
