title: Primary structure of two mRNAs encoding putative salmon alpha-subunits of pituitary glycoprotein hormone.
abstract: 1. By random sequence analyses, we isolated from the cDNA library of salmon pituitary glands two clones, the deduced amino acid sequences corresponding to the C-terminal region of which are almost the same as those of the alpha subunits of mammalian glycoprotein hormones. 2. Comparison of the nucleotide sequences and deduced amino acid sequences from these two clones with those of mammalian species revealed that the two newly-isolated cDNAs corresponded to mRNAs encoding the putative salmon pre-alpha subunit of glycoprotein hormones. 3. Homology in the nucleotide sequences of these two clones suggested that corresponding mRNAs may be encoded by separate genes which probably evolved from a common ancestral gene.
authors: Department of Molecular Biology, Teikyo University, Kanagawa, Japan.
authors: N
authors: N
authors: Kitahara
authors: T
authors: T
authors: Nishizawa
authors: T
authors: T
authors: Gatanaga
authors: H
authors: H
authors: Okazaki
authors: T
authors: T
authors: Andoh
authors: G
authors: G
authors: Soma
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D005075:Biological Evolution; D003001:Cloning, Molecular; D004247:DNA / Q000235:genetics; D015292:Glycoprotein Hormones, alpha Subunit / Q000235:genetics*; D008322:Mammals; D008969:Molecular Sequence Data; D012333:RNA, Messenger / Q000235:genetics*; D015183:Restriction Mapping; D012474:Salmon / Q000235:genetics*; D013045:Species Specificity
chemical_list: D015292:Glycoprotein Hormones, alpha Subunit; D012333:RNA, Messenger; D004247:DNA