In vivo and in vitro experiments have shown that processing of ribosomal RNA is a late event in ribosome biogenesis. The precursor form of RNA is probably necessary to speed up the assembly of ribomal proteins. Newly formed ribosomal particles which have already entered polyribosomes differ from mature ribosomes not only in their RNA content but also in their susceptibility to unfolding in low Mg concentration and to RNase attack. Final maturation of new ribosomes is probably dependent on their functioning in protein synthesis. Thus only those ribosomes which have proven to be functional may be converted into stable cellular structures.
Ribosome maturation in E. coli. / SILENGO L ;ALTRUDA F ;DOTTO GP ;LACQUANITI F ;PERLO C ;TURCO E ;MANGIAROTTI G. - In: ITALIAN JOURNAL OF BIOCHEMISTRY. - ISSN 0021-2938. - 26(1977), pp. 133-143.
Titolo: | Ribosome maturation in E. coli. |
Autori Riconosciuti: | |
Autori: | SILENGO L ;ALTRUDA F ;DOTTO GP ;LACQUANITI F ;PERLO C ;TURCO E ;MANGIAROTTI G |
Data di pubblicazione: | 1977 |
Abstract: | In vivo and in vitro experiments have shown that processing of ribosomal RNA is a late event in ribosome biogenesis. The precursor form of RNA is probably necessary to speed up the assembly of ribomal proteins. Newly formed ribosomal particles which have already entered polyribosomes differ from mature ribosomes not only in their RNA content but also in their susceptibility to unfolding in low Mg concentration and to RNase attack. Final maturation of new ribosomes is probably dependent on their functioning in protein synthesis. Thus only those ribosomes which have proven to be functional may be converted into stable cellular structures. |
Volume: | 26 |
Pagina iniziale: | 133 |
Pagina finale: | 143 |
Rivista: | ITALIAN JOURNAL OF BIOCHEMISTRY |
Appare nelle tipologie: | 03A-Articolo su Rivista |