title: Primary structure of the alpha-subunit of human Na,K-ATPase deduced from cDNA sequence.
abstract: Clones carrying cDNA sequences for the alpha-subunit of the Na,K-ATPase from HeLa cells have been isolated. Nucleotide sequence analysis of the cloned cDNA has revealed the primary structure of this polypeptide, which consists of 1,023 amino acids. The alpha-subunit of the human Na,K-ATPase exhibited 87% homology with its Torpedo counterpart and 98% homology with its sheep counterpart. The six putative transmembrane segments M1-M6 showed higher conservation than the total segments. Total genomic Southern hybridization indicated the existence of at most two copies, possibly only one, of the gene encoding the Na,K-ATPase alpha-subunit in the human genome.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D004247:DNA / Q000032:analysis*; D006367:HeLa Cells / Q000201:enzymology; D006801:Humans; D046911:Macromolecular Substances; D009693:Nucleic Acid Hybridization; D011061:Poly A / Q000032:analysis; D012313:RNA / Q000032:analysis; D012333:RNA, Messenger; D000254:Sodium-Potassium-Exchanging ATPase / Q000032:analysis* / Q000235:genetics; D014101:Torpedo
chemical_list: D046911:Macromolecular Substances; D012333:RNA, Messenger; D011061:Poly A; D012313:RNA; D004247:DNA; D000254:Sodium-Potassium-Exchanging ATPase