title: Alignment of the amino acid sequences of distantly related proteins using variable gap penalties.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D006454:Hemoglobins / Q000235:genetics; D006801:Humans; D008969:Molecular Sequence Data; D015394:Molecular Structure; D011487:Protein Conformation; D015202:Protein Engineering / Q000379:methods*; D011506:Proteins / Q000235:genetics
chemical_list: D006454:Hemoglobins; D011506:Proteins