title: Evolution of ribonuclease inhibitor by exon duplication.
authors.forename: Marcia C
authors.initials: MC
authors.lastname: Haigis
authors.forename: Eric S
authors.initials: ES
authors.lastname: Haag
authors.forename: Ronald T
authors.initials: RT
authors.lastname: Raines
mesh_terms: D000818:Animals; D001483:Base Sequence; D019143:Evolution, Molecular; D005091:Exons / Q000235:genetics*; D020440:Gene Duplication; D006801:Humans; D047908:Intracellular Signaling Peptides and Proteins; D008969:Molecular Sequence Data; D010802:Phylogeny; D010926:Placental Hormones / Q000235:genetics*; D011506:Proteins / Q000235:genetics*; D016415:Sequence Alignment; D013552:Swine
chemical_list: D047908:Intracellular Signaling Peptides and Proteins; D010926:Placental Hormones; D011506:Proteins; C022052:placental ribonuclease inhibitor; C066953:ribonuclease inhibitor, porcine