title: Cloning and restriction fragment length polymorphism analysis of a cDNA for swine PIT-1, a gene controlling growth hormone expression.
abstract: A partial swine cDNA which encodes the functional domain of PIT-1 was isolated by the polymerase chain reaction (PCR). The swine PIT-1 cDNA clone is 95% identical at the protein level to the rat Pit-1 gene. Thus, Pit-1's known function in control of rat growth hormone and prolactin expression is likely to be conserved in swine. This swine cDNA clone was used to investigate genetic variability at PIT-1 in several American and Chinese breeds. Polymorphic BamHI fragments were found in pure-bred Meishan animals (n = 13), but only monomorphic fragments in five American breeds (n = 36).
authors.affiliation: Department of Animal Science, Iowa State University, Ames 50011.
authors.forename: C K
authors.initials: CK
authors.lastname: Tuggle
authors.forename: T P
authors.initials: TP
authors.lastname: Yu
authors.forename: J
authors.initials: J
authors.lastname: Helm
authors.forename: M F
authors.initials: MF
authors.lastname: Rothschild
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001482:Base Composition; D001483:Base Sequence; D015139:Blotting, Southern / Q000662:veterinary; D002540:Cerebral Cortex / Q000737:chemistry; D003001:Cloning, Molecular; D004247:DNA / Q000302:isolation & purification; D004268:DNA-Binding Proteins / Q000235:genetics*; D004587:Electrophoresis, Agar Gel / Q000662:veterinary; D005809:Genes, Regulator; D014644:Genetic Variation; D008969:Molecular Sequence Data; D010902:Pituitary Gland / Q000737:chemistry; D016133:Polymerase Chain Reaction / Q000662:veterinary; D012150:Polymorphism, Restriction Fragment Length; D017386:Sequence Homology, Amino Acid; D013552:Swine / Q000235:genetics*; D050817:Transcription Factor Pit-1; D014157:Transcription Factors / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D004268:DNA-Binding Proteins; D050817:Transcription Factor Pit-1; D014157:Transcription Factors; D004247:DNA