Variation of ribosomal proteins with bacterial growth rate
1975; American Society for Microbiology; Volume: 122; Issue: 1 Linguagem: Inglês
10.1128/jb.122.1.89-92.1975
ISSN1098-5530
AutoresAmy Milne, W. Mak, J. Tze‐Fei Wong,
Tópico(s)Genomics and Phylogenetic Studies
ResumoThe composition of ribosomal proteins has been examined as a function of the growth rate of Escherichia coli cells. Seven sets of cultural conditions, utilizing different combinations of carbon and nitrogen sources, were employed to provide a 36-fold spread in growth rate. The cellular content of most of the ribosomal proteins in ribosomes decreased to a similar extent in the very slow-growing cultures. Major exceptions were proteins S6 and L12, which exhibited a much more pronounced decrease , and S21, which exhibited an increase. None of the proteins remained invariant with growth rate.
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