Which type of ribosomes are found in bacterial cells?
Prokaryotic translation machinery centers on 70S ribosome sedimenting at 70 Svedberg units, approximately 2.5 MDa particle comprising small 30S subunit containing 16S rRNA about 1542 nucleotides and 21 ribosomal proteins responsible for decoding mRNA via Shine-Dalgarno interaction pairing with anti-Shine-Dalgarno near 3 prime end of 16S, and large 50S subunit containing 23S rRNA 2900 nucleotides, 5S rRNA, and 33 proteins harboring peptidyl transferase center catalyzing peptide bond formation and exit tunnel guiding nascent chain. Initiation uses initiation factors IF1, IF2, IF3 and formyl-meth
Ref: Alberts et al., Molecular Biology of the Cell, 7th ed., Chapter 6: 70S Bacterial Ribosomes and Antibiotics.
