== Calculating a Multiple Sequence Alignment ==
-BioRuby can be used to execute a variety of multiple sequence alignment
-programs (such as [http://mafft.cbrc.jp/alignment/software/ MAFFT], Probcons, ClustalW, Muscle).
+BioRuby! can be used to execute a variety of multiple sequence alignment
+programs (such as [http://mafft.cbrc.jp/alignment/software/ MAFFT], [http://probcons.stanford.edu/ Probcons], [http://www.drive5.com/muscle/ ClustalW], [http://www.drive5.com/muscle/ Muscle]).
In the following, examples for using the MAFFT and Muscle are shown.
=== MAFFT ===