Comparative studies on the structural gene for the ribosomal protein S1 in ten bacterial species
β Scribed by Schnier, Joachim ;Faist, Gabriele
- Book ID
- 104770476
- Publisher
- Springer
- Year
- 1985
- Tongue
- English
- Weight
- 682 KB
- Volume
- 200
- Category
- Article
- ISSN
- 0026-8925
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β¦ Synopsis
By applying the Southern blot technique we compared the structural gene rpsA for ribosomal protein $I and its preceding sequence from Escherichia coIi with nine other bacterial species. We found high homology among the structural genes of E. coli and other gram-negative but not gram-positive bacteria. In contrast, the regulatory sequence preceding the structural gene was not highly conserved among the organisms studied.
Cloning and DNA sequence analysis of a 1.2 kb fragment coding for most of the structural gene for SI from Providencia localized some strongly conserved parts of the DNA sequence, despite the fact that the codon usage showed considerable divergence from that of E. coli.
π SIMILAR VOLUMES
An amber mutation has been induced in the gene rpsA (which codes for ribosomal protein S1) of Escherichia coli K-12 strain in the presence of an amber suppressor (supD) and mutations sueA, sueB and sueC that additively enhance the efficiency of suppression. That the amber mutation has occurred in th