Inhibitors of mammalian protein synthesis.

نویسندگان

  • D Vazquez
  • M Barbacid
  • L Carrasco
چکیده

The number of antibiotics active on eukaryotic ribosomes has been considerably increased in the last few years. Some of them are active only in eukaryotic ribosomes whereas some others are active on prokaryotic as well as eukaryotic ribosomes (Table 1). There is ample evidence suggesting a sirnilar mechanism for the elongation cycle by prokaryotic and eukaryotic ribosomes. This evidence is mainly based on studies showing that (a) the functions of the eukaryotic ribosomal subunits are similar to those of their prokaryotic Counterpart and (b) antibiotics active on prokaryotic and eukaryotic ribosomes act in both cases on the equivalent subunits. Therefore we can tentatively extrapolate and generalize results obtained with some antibiotics concerning their site of action as indicated in Table 2. Similarly we rnight generalize data concerning the mode of action of these antibiotics. However, most of the data concerning the specific reactions inhibited by antibiotics on eukaryotic ribosomes were obtained using different experimental systems and ribosomes from an enormous variety of biological sources. Consequently we have studied systematically the effect of these antibiotics on similar systems for the reactions of the elongation cycle using in all cases human tonsil ribosomes. For the purpose of comparative studies we have also studied in some cases the effects of some antibiotics on cell-free systems from other types of eukaryotic cells. The results obtained are presented in this contribution.

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عنوان ژورنال:
  • Hamatologie und Bluttransfusion

دوره 14  شماره 

صفحات  -

تاریخ انتشار 1974