Clustal X is an X windows interface for the ClustalW multiple sequence
alignment program. It provides an integrated environment for performing
multiple sequence and profile alignments and analysing the results. The
sequence alignment is displayed in a window on the screen. It also provides
a versatile coloring scheme which has been incorporated to allow one to
highlight conserved features in the alignment. The pull-down menus at the
top of the window allow you to select all the options required for
traditional multiple sequence and profile alignment.