Multiple Alignment

2#2

  

Figure 4.1: A multiple alignment of ACBCBD, CADDB and ACABCD.

3#3

We are interested in finding a common alignment of several sequences, because this multiple similarity suggests a common structure of the protein product, a common function or a common evolutionary source. A multiple alignment carries more information than a pairwise one, as a protein can be matched against a family of proteins instead of only against another one.