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The complete primary structure of ribosomal proteins L1, L14, L15, L23, L24 and L29 from Bacillus stearothermophilus. 1985

M Kimura, and J Kimura, and K Ashman

The amino acid sequences of ribosomal proteins L1, L14, L15, L23, L24 and L29 from Bacillus stearothermophilus have been completely determined. This has been achieved by sequence analyses of peptides derived from enzymatic digestions of the proteins with trypsin, chymotrypsin, pepsin, Staphylococcus aureus protease, and Armillaria mellea protease as well as by chemical cleavage with hydroxylamine and cyanogen bromide. Based on the primary structures of the six proteins, their secondary structures were predicted using four different computer prediction programs. A comparison of the amino acid sequences of the studied proteins from B. stearothermophilus with the homologous proteins from Escherichia coli revealed that in four proteins (L1, L15, L24 and L29) between 40-50% of the residue in the sequences are identical, whereas this value is significantly higher (69%) for L14 and lower (28%) for L23. The distribution of those amino acid residues which are identical in the corresponding proteins from the two bacteria is not random along the protein chain: some regions are highly conserved whereas others are not. This finding indicates that the regions which are conserved during evolution are important for the spatial structure and/or function of the protein.

UI MeSH Term Description Entries
D002621 Chemistry A basic science concerned with the composition, structure, and properties of matter; and the reactions that occur between substances and the associated energy exchange.
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein
D000596 Amino Acids Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins. Amino Acid,Acid, Amino,Acids, Amino
D001411 Geobacillus stearothermophilus A species of GRAM-POSITIVE ENDOSPORE-FORMING BACTERIA in the family BACILLACEAE, found in soil, hot springs, Arctic waters, ocean sediments, and spoiled food products. Bacillus stearothermophilus,Bacillus thermoliquefaciens
D001426 Bacterial Proteins Proteins found in any species of bacterium. Bacterial Gene Products,Bacterial Gene Proteins,Gene Products, Bacterial,Bacterial Gene Product,Bacterial Gene Protein,Bacterial Protein,Gene Product, Bacterial,Gene Protein, Bacterial,Gene Proteins, Bacterial,Protein, Bacterial,Proteins, Bacterial
D012269 Ribosomal Proteins Proteins found in ribosomes. They are believed to have a catalytic function in reconstituting biologically active ribosomal subunits. Proteins, Ribosomal,Ribosomal Protein,Protein, Ribosomal
D055598 Chemical Phenomena The composition, structure, conformation, and properties of atoms and molecules, and their reaction and interaction processes. Chemical Concepts,Chemical Processes,Physical Chemistry Concepts,Physical Chemistry Processes,Physicochemical Concepts,Physicochemical Phenomena,Physicochemical Processes,Chemical Phenomenon,Chemical Process,Physical Chemistry Phenomena,Physical Chemistry Process,Physicochemical Phenomenon,Physicochemical Process,Chemical Concept,Chemistry Process, Physical,Chemistry Processes, Physical,Concept, Chemical,Concept, Physical Chemistry,Concept, Physicochemical,Concepts, Chemical,Concepts, Physical Chemistry,Concepts, Physicochemical,Phenomena, Chemical,Phenomena, Physical Chemistry,Phenomena, Physicochemical,Phenomenon, Chemical,Phenomenon, Physicochemical,Physical Chemistry Concept,Physicochemical Concept,Process, Chemical,Process, Physical Chemistry,Process, Physicochemical,Processes, Chemical,Processes, Physical Chemistry,Processes, Physicochemical
D029968 Escherichia coli Proteins Proteins obtained from ESCHERICHIA COLI. E coli Proteins

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