title: The primary structure of the ribosomal A-protein (L12) from the halophilic eubacterium Haloanaerobium praevalens.
abstract: The ribosomal A-protein, equivalent to the ribosomal protein L12 from Escherichia coli, has been sequenced from the anaerobic halophilic eubacterium Haloanaerobium praevalens (DSM 2228). The protein contains 122 amino acids, has a composition of Asp6, Asn2, Thr2, Ser6, Glu22, Pro2, Gly13, Ala19, Val12, Met4, Ile5, Leu11, Phe3, Lys14, Arg1 and has a molecular weight of 12,691. The hydrophilicity profile was determined for this protein. A phylogenetic or cluster tree was calculated from computer analysis of the sequence data on eubacterial ribosomal A-proteins. H. praevalens clusters with a group that includes Bacillus subtilis, Micrococcus lysodeikticus, Bacillus stearothermophilus and Clostridium pasteurianum.
mesh_terms: D000595:Amino Acid Sequence; D002268:Carboxypeptidases; D002851:Chromatography, High Pressure Liquid; D005051:Eubacterium / Q000032:analysis*; D008969:Molecular Sequence Data; D010802:Phylogeny; D012269:Ribosomal Proteins / Q000032:analysis
chemical_list: D012269:Ribosomal Proteins; C016700:ribosomal protein L7-L12; D002268:Carboxypeptidases