The complete amino acid sequences of the 5 S rRNA binding proteins L5 and L18 from the moderate thermophile Bacillus stearothermophilus ribosome

Junko Kimura, Makoto Kimura

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The complete amino acid sequences of the 5 S rRNA binding proteins L5 and L18 isolated from ribosomes of the moderate thermophile Bacillus stearothermophilus are presented. This has been achieved by the sequence analysis of peptides derived by enzymatic digestions with trypsin, chymotrypsin, pepsin, and Staphy-lococcus aureus protease, as well as by chemical cleavage with cyanogen bromide. The proteins L5 and L18 consist of 179 and 120 amino acid residues, and have Mr values of 20 163 and 13 473, respectively. A comparison of the sequences with their counterparts from the Escherichia coli ribosome reveals 59% identical residues for L5, and 53% for L18. For both proteins, the distribution of conserved regions is not random along the protein chains: some regions are highly conserved while others are not. The regions which are conserved during evolution may be important for the interaction with the 5 S rRNA molecule.

Original languageEnglish
Pages (from-to)85-90
Number of pages6
JournalFEBS Letters
Volume210
Issue number1
DOIs
Publication statusPublished - Jan 1 1987

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Geobacillus stearothermophilus
Bacilli
Ribosomes
Amino Acid Sequence
Carrier Proteins
Amino Acids
Cyanogen Bromide
Proteins
Pepsin A
Protein Sequence Analysis
Escherichia coli
Digestion
Peptide Hydrolases
Peptides
Molecules

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

Cite this

The complete amino acid sequences of the 5 S rRNA binding proteins L5 and L18 from the moderate thermophile Bacillus stearothermophilus ribosome. / Kimura, Junko; Kimura, Makoto.

In: FEBS Letters, Vol. 210, No. 1, 01.01.1987, p. 85-90.

Research output: Contribution to journalArticle

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