title: Primary structures of three highly acidic ribosomal proteins S6, S12 and S15 from the archaebacterium Halobacterium marismortui.
abstract: The amino acid sequences of three extremely acidic ribosomal proteins, S6, S12, and S15, from Halobacterium marismortui have been determined. The sequences were obtained by the sequence analysis of peptides derived by enzymatic digestion with trypsin. Stapylococcus aureus protease and chymotrypsin, as well as by cleavage with dilute HCl. The proteins, S6, S12 and S15, consist of 116, 147 and 102 amino acid residues, and have molecular masses of 12,251, 16,440 and 11,747 Da, respectively. Comparison of the amino acid sequences of these proteins with ribosomal protein sequences of other organisms revealed that halobacterial protein S12 has homology with the eukaryotic protein S16A from Saccharomyces cerevisiae, while S15 is significantly related to the Xenopus laevis S19 protein. No homology was found between these halobacterial proteins and any eubacterial ribosomal proteins.
authors.affiliation: Max-Planck-Institut für Molekulare Genetik, Abteilung Wittmann, Berlin, Dahlem, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Kimura
authors.forename: E
authors.initials: E
authors.lastname: Arndt
authors.forename: M
authors.initials: M
authors.lastname: Kimura
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics*; D004926:Escherichia coli / Q000235:genetics; D005656:Fungal Proteins / Q000235:genetics; D006217:Halobacterium / Q000235:genetics*; D008969:Molecular Sequence Data; D038601:Ribosomal Protein S6; D012269:Ribosomal Proteins / Q000235:genetics*; D012441:Saccharomyces cerevisiae / Q000235:genetics; D012689:Sequence Homology, Nucleic Acid; D014982:Xenopus laevis / Q000235:genetics
chemical_list: D001426:Bacterial Proteins; D005656:Fungal Proteins; D038601:Ribosomal Protein S6; D012269:Ribosomal Proteins; C034212:ribosomal protein S12; C036004:ribosomal protein S15