Multiple Sequence Alignment (MSA) is generally the alignment of three or more biological sequences (protein or nucleic acid) of similar length. From the output, homology can be inferred and the evolutionary relationships between the sequences studied.
A multiple sequence alignment (MSA) is a sequence alignment of three or more biological sequences, generally a protein, DNA, or RNA. In many cases, the input set of query sequences are assumed to have an evolutionary relationship by which they share a linkage and are descended from a common ancestor. From the resulting MSA, sequence homology can be inferred and phylogenetic analysis can be conducted to assess the sequences' shared evolutionary origins. Multiple sequences
alignment is often used to assess sequence conservation of protein
domains, tertiary and secondary structures, and even individual amino
acids or nucleotides