title: Nucleotide sequence of a bovine lens alpha A-crystallin cDNA.
abstract: We have determined the nucleotide sequence of a bovine lens alpha A2-crystallin cDNA clone, designated pBL alpha A2-1. The 793 bp cDNA insert contains coding information for the entire 173 amino acid alpha A2-crystallin polypeptide, as well as non-translated sequences located both upstream and downstream from the coding region. The coding sequences contained in pBL alpha A2-1 are at least 89% homologous with the corresponding sequences from other mammalian alpha A-crystallin genes, and are 78% homologous to the frog alpha A-crystallin coding region. In contrast, the downstream nontranslated sequences of the mammalian alpha A-crystallin transcripts show much greater sequence divergence, with the bovine sequences averaging 47% homology with the corresponding sequences from other mammalian species.
authors: Department of Ophthalmology, Emory University School of Medicine, Atlanta, Georgia 30322.
authors: R E
authors: RE
authors: Hay
authors: J M
authors: JM
authors: Petrash
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002417:Cattle; D003001:Cloning, Molecular; D004247:DNA / Q000032:analysis*; D007908:Lens, Crystalline / Q000032:analysis*; D008969:Molecular Sequence Data; D009710:Nucleotide Mapping; D012689:Sequence Homology, Nucleic Acid; D013045:Species Specificity
chemical_list: D004247:DNA