Figure 1
From: Composition and conservation of the mRNA-degrading machinery in bacteria
RNA synthesis and turnover as part of the gene expression network in bacteria. Different types of RNA (mRNAs, ribosomal and transfer RNA pre-cursors and various non-coding RNAs) either can directly be involved in translation (e.g. mRNAs) or undergo further processing (pre-cursors of stable RNA) or degradation (untranslated or poorly translated mRNAs) by the RNA decay machinery. The final products of RNA turnover, mononucleotides, are used for the next cycles of RNA synthesis (recycling).