title: Progressive alignment and phylogenetic tree construction of protein sequences.
authors.forename: D F
authors.initials: DF
authors.lastname: Feng
authors.forename: R F
authors.initials: RF
authors.lastname: Doolittle
mesh_terms: D000465:Algorithms; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D006454:Hemoglobins / Q000235:genetics; D006801:Humans; D007256:Information Systems; D007798:Lampreys; D008969:Molecular Sequence Data; D010802:Phylogeny; D011506:Proteins / Q000235:genetics*; D012689:Sequence Homology, Nucleic Acid; D012984:Software
chemical_list: D006454:Hemoglobins; D011506:Proteins