Sequence alignment is the procedure of comparing two or more sequences, producing a correspondence between series of individual characters or patterns that are in the same order in the input sequences. Distance and similarity Global and local alignment L G P S S K Q T G K G S - S R I W D N | | | | | | | L N - I T K S A G K G A I M R L G D A - - - - - - - T G K G - - - - - - - - | | | - - - - - - - A G K G - - - - - - - -