Percent of cellular volume occupied by ribosomes (in logarithmic growth phase)

Range ~5 %
Organism Bacteria Spiroplasma melliferum
Reference Ortiz JO, Förster F, Kürner J, Linaroudis AA, Baumeister W. Mapping 70S ribosomes in intact cells by cryoelectron tomography and pattern recognition. J Struct Biol. 2006 Nov156(2):334-41 abstract and p.339 left column 2nd paragraphPubMed ID16857386
Method Cryoelectron tomography (CET) and Scaling index based segmentation (SIBS)
Comments "Assuming that each 70S ribosome has a volume of 3400nm3 (Zhu et al., 1997 PMID 9169230), the predicted 275 ribosomes occupy approximately 5% of the cellular volume. [Researchers] did not detect large volumes devoid of ribosomes in any of the tomograms of S. melliferum [they] have recorded."
Entered by Uri M
ID 108949