PMID:387076
| Citation |
Heiland, I and Wittmann-Liebold, B (1979) Amino acid sequence of the ribosomal protein L21 of Escherichia coli. Biochemistry 18:4605-12 |
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| Abstract |
The primary structure of protein L21 from the 50S subunit of Escherichia coli ribosomes has been completely determined by sequencing the peptides obtained by digestion of L21 with trypsin before and after modification of the arginine residues with 1,2-cyclohexanedione, Staphylococcus aureus protease, thermolysin, and pepsin. Automated Edman degradation using a liquid-phase sequenator was carried out on the intact protein as well as on a fragment arising from cleavage with cyanogen bromide. Protein L21 consists of a single polypeptide chain of 103 amino acids of molecular weight 11 565. An estimation of the secondary structure of protein L21 and a comparison with other E. coli ribosomal protein sequences are presented. |
| Links | |
| Keywords |
Amino Acid Sequence; Chromatography, Thin Layer; Cyanogen Bromide; Escherichia coli/analysis; Pepsin A; Peptide Fragments/analysis; Peptide Hydrolases; Protein Conformation; Ribosomal Proteins; Thermolysin; Trypsin |
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