Description:

Clustal W is a general purpose multiple sequence alignment program for DNA or
proteins. It produces biologically meaningful multiple sequence alignments of
divergent sequences. It calculates the best match for the selected sequences,
and lines them up so that the identities, similarities and differences can be
seen. Evolutionary relationships can be seen via viewing Cladograms
or Phylograms.

Reference for CLUSTAL W:
Thompson, J.D., Higgins, D.G. and Gibson, T.J. (1994)
CLUSTAL W: improving the sensitivity of progressive multiple sequence
alignment through sequence weighting, positions-specific gap penalties
and weight matrix choice.
Nucleic Acids Research, 22:4673-4680.